The star formation histories of fossil group galaxies (2010)
De La Rosa, Ignacio G., Proctor, Robert N., Mendes De Oliveira, Claudia, Forbes, Duncan A., Cid Fernandes, Roberto, Mateus, Abilio
A comparison is carried out among the star formation histories of the early-type galaxies (ETGs) in fossil groups, clusters and low density environments. Although they show similar evolutionary...
Metallicity Gradients at Large Galactocentric Radii Using the Near-infrared Calcium Triplet (2009)
Foster, Caroline, Proctor, Robert N., Forbes, Duncan A., Spolaor, Max, Hopkins, Philip F., Brodie, Jean P.
We describe a new spectroscopic technique for measuring radial metallicity gradients out to large galactocentric radii. We use the DEIMOS multi-object spectrograph on the Keck telescope and the...
Probing the 2-D kinematic structure of early-type galaxies out to 3 effective radii (2009)
Proctor, Robert N., Forbes, Duncan A., Romanowsky, Aaron J., Brodie, Jean P., Strader, Jay, Spolaor, Max, ...
We detail an innovative new technique for measuring the 2-D velocity moments (rotation velocity, velocity dispersion and Gauss-Hermite coefficients h$_3$ and h$_4$) of the stellar populations of...
The anatomy of the NGC 5044 group -- II. Stellar populations and star-formation histories (2009)
Mendel, J. Trevor, Proctor, Robert N., Rasmussen, Jesper, Brough, Sarah, Forbes, Duncan A.
The distribution of galaxy properties in groups and clusters holds important information on galaxy evolution and growth of structure in the Universe. While clusters have received appreciable...
An Ultra Compact Dwarf around the Sombrero galaxy (M104): the Nearest Massive UCD (2009)
Hau, George K. T., Spitler, Lee R., Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Mendel, J. Trevor, ...
We report the discovery of an Ultra Compact Dwarf (UCD) associated with the Sombrero galaxy (M104). This is the closest massive UCD known and the first spectroscopically verified massive UCD which is...
The mass-metallicity gradient relation of early-type galaxies (2009)
Spolaor, Max, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J.
We present a newly observed relation between galaxy mass and radial metallicity gradients of early-type galaxies. Our sample of 51 early-type galaxies encompasses a comprehensive mass range from...
Bridges, Terry J., Beasley, Michael A., Faifer, Favio Raul, Forbes, Duncan A., Forte, Juan Carlos, Gebhardt, Karl, ...
Globular cluster (GC) spectroscopy is an excellent way to study GC kinematics, ages, and abundances, and galactic dark matter content [5, 2]. Our group is using the Gemini Multi-Object Spectrograph...
Faifer, Favio Raul, Forte, Juan Carlos, Beasley, Michael A., Bridges, Terry J., Forbes, Duncan A., Gebhardt, Karl, ...
Globular clusters (GCs) are useful tools to study the star formation and chemical evolution history as well as the dynamics and dark matter content of early-type galaxies. In this context, our group...
The mass-metallicity gradient relation of early-type galaxies (2009)
Spolaor, Max, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J.
We present a newly observed relation between galaxy mass and radial metallicity gradients of early-type galaxies. Our sample of 51 early-type galaxies encompasses a comprehensive mass range from...
An ultra-compact dwarf around the Sombrero galaxy (M104): the nearest massive UCD (2009)
Hau, George K. T., Spitler, Lee R., Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Mendel, J. Trevor, ...
We report the discovery of an ultra-compact dwarf (UCD) associated with the Sombrero galaxy (M104). This is the closest massive UCD known and the first spectroscopically verified massive UCD which is...
The anatomy of the NGC 5044 group II: stellar populations and star-formation histories (2009)
Mendel, J. Trevor, Proctor, Robert N., Rasmussen, Jesper, Brough, Sarah, Forbes, Duncan A.
The distribution of galaxy properties in groups and clusters holds important information on galaxy evolution and growth of structure in the Universe. While clusters have received appreciable...
The anatomy of the NGC 5044 group II: stellar populations and star-formation histories (2009)
Mendel, J. Trevor, Proctor, Robert N., Rasmussen, Jesper, Brough, Sarah, Forbes, Duncan A.
The distribution of galaxy properties in groups and clusters holds important information on galaxy evolution and growth of structure in the Universe. While clusters have received appreciable...
Bridges, Terry J., Beasley, Michael A., Faifer, Favio Raul, Forbes, Duncan A., Forte, Juan Carlos, Gebhardt, Karl, ...
Globular cluster (GC) spectroscopy is an excellent way to study GC kinematics, ages, and abundances, and galactic dark matter content [5, 2]. Our group is using the Gemini Multi-Object Spectrograph...
Faifer, Favio Raul, Forte, Juan Carlos, Beasley, Michael A., Bridges, Terry J., Forbes, Duncan A., Gebhardt, Karl, ...
Globular clusters (GCs) are useful tools to study the star formation and chemical evolution history as well as the dynamics and dark matter content of early-type galaxies. In this context, our group...
The mass-metallicity gradient relation of early-type galaxies (2009)
Spolaor, Max, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J.
We present a newly observed relation between galaxy mass and radial metallicity gradients of early-type galaxies. Our sample of 51 early-type galaxies encompasses a comprehensive mass range from...
An ultra-compact dwarf around the Sombrero galaxy (M104): the nearest massive UCD (2009)
Hau, George K. T., Spitler, Lee R., Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Mendel, J. Trevor, ...
We report the discovery of an ultra-compact dwarf (UCD) associated with the Sombrero galaxy (M104). This is the closest massive UCD known and the first spectroscopically verified massive UCD which is...
The anatomy of the NGC 5044 group II: stellar populations and star-formation histories (2009)
Mendel, J. Trevor, Proctor, Robert N., Rasmussen, Jesper, Brough, Sarah, Forbes, Duncan A.
The distribution of galaxy properties in groups and clusters holds important information on galaxy evolution and growth of structure in the Universe. While clusters have received appreciable...
Probing the 2D kinematic structure of early-type galaxies out to three effective radii (2009)
Proctor, Robert N., Forbes, Duncan A., Romanowsky, Aaron J., Brodie, Jean P., Strader, Jay, Spolaor, Max, ...
We detail an innovative new technique for measuring the two-dimensional (2D) velocity moments (rotation velocity, velocity dispersion and Gauss–Hermite coefficients h3 and h4) of the stellar...
The anatomy of the NGC 5044 group - I. Group membership and dynamics (2008)
Mendel, J. Trevor, Proctor, Robert N., Forbes, Duncan A., Brough, Sarah
We use a combination of new AAOmega multi-object wide-field spectroscopic observations and literature data to define 111 spectroscopically confirmed members of the massive NGC 5044 group with M_B
The effects of stellar populations on galaxy scaling relations in the 6dF Galaxy Survey (2008)
Proctor, Robert N., Lah, Philip, Forbes, Duncan A., Colless, Matthew, Couch, Warrick
We present an analysis of the stellar populations in a sample of ~7000 galaxies from the 6dF Galaxy Survey (6dFGS). We derive ages and metallicities using stellar population models. We also derive...
Spolaor, Max, Forbes, Duncan A., Hau, George K. T., Proctor, Robert N., Brough, Sarah
This is the first paper of a series focused on investigating the star formation and evolutionary history of the two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of...
Spolaor, Max, Forbes, Duncan A., Proctor, Robert N., Hau, George K. T., Brough, Sarah
We present a possible star formation and chemical evolutionary history for two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of the NGC 1407 (or Eridanus-A) group,...
The effects of stellar populations on galaxy scaling relations in the 6dF Galaxy Survey (2008)
Proctor, Robert N., Lah, Philip, Forbes, Duncan A., Colless, Matthew, Couch, Warrick J.
We present an analysis of the stellar populations as a function of mass in a sample of ~7000 galaxies of all morphological and emission types from the 6dF Galaxy Survey. We measure velocity...
The effects of stellar populations on galaxy scaling relations in the 6dF Galaxy Survey (2008)
Proctor, Robert N., Lah, Philip, Forbes, Duncan A., Colless, Matthew, Couch, Warrick J.
We present an analysis of the stellar populations as a function of mass in a sample of ~7000 galaxies of all morphological and emission types from the 6dF Galaxy Survey. We measure velocity...
Keck spectroscopy of globular clusters in the spiral galaxy NGC 2683 (2008)
Proctor, Robert N., Forbes, Duncan A., Brodie, Jean P., Strader, Jay
We analyse Keck spectra of 24 candidate globular clusters (GCs) associated with the spiral galaxy NGC 2683. We identify 19 bona fide GCs based on their recession velocities, of which 15 were suitable...
Spolaor, Max, Forbes, Duncan A., Hau, George K. T., Proctor, Robert N., Brough, Sarah
This is the first paper of a series focused on investigating the star formation and evolutionary history of the two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of...
Spolaor, Max, Forbes, Duncan A., Proctor, Robert N., Hau, George K. T., Brough, Sarah
We present a possible star formation and chemical evolutionary history for two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of the NGC 1407 (or Eridanus-A) group,...
The anatomy of the NGC5044 group I: group membership and dynamics (2008)
Mendel, J. Trevor, Proctor, Robert N., Forbes, Duncan A., Brough, Sarah
We use a combination of new AAOmega multi-object wide-field spectroscopic observations and literature data to define 111 spectroscopically confirmed members of the massive NGC 5044 group with...
The effects of stellar populations on galaxy scaling relations in the 6dF Galaxy Survey (2008)
Proctor, Robert N., Lah, Philip, Forbes, Duncan A., Colless, Matthew, Couch, Warrick J.
We present an analysis of the stellar populations as a function of mass in a sample of ~7000 galaxies of all morphological and emission types from the 6dF Galaxy Survey. We measure velocity...
Spolaor, Max, Forbes, Duncan A., Hau, George K. T., Proctor, Robert N., Brough, Sarah
This is the first paper of a series focused on investigating the star formation and evolutionary history of the two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of...
Spolaor, Max, Forbes, Duncan A., Proctor, Robert N., Hau, George K. T., Brough, Sarah
We present a possible star formation and chemical evolutionary history for two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of the NGC 1407 (or Eridanus-A) group,...
The anatomy of the NGC5044 group I: group membership and dynamics (2008)
Mendel, J. Trevor, Proctor, Robert N., Forbes, Duncan A., Brough, Sarah
We use a combination of new AAOmega multi-object wide-field spectroscopic observations and literature data to define 111 spectroscopically confirmed members of the massive NGC 5044 group with...
Keck spectroscopy of globular clusters in the spiral galaxy NGC 2683 (2008)
Proctor, Robert N., Forbes, Duncan A., Brodie, Jean P., Strader, Jay
We analyse Keck spectra of 24 candidate globular clusters (GCs) associated with the spiral galaxy NGC 2683. We identify 19 bona fide GCs based on their recession velocities, of which 15 were suitable...
Spolaor, Max, Forbes, Duncan A., Hau, George K. T., Proctor, Robert N., Brough, Sarah
This is the first paper of a series focused on investigating the star formation and evolutionary history of the two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of...
Spolaor, Max, Forbes, Duncan A., Proctor, Robert N., Hau, George K. T., Brough, Sarah
We present a possible star formation and chemical evolutionary history for two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of the NGC 1407 (or Eridanus-A) group,...
The anatomy of the NGC5044 group I: group membership and dynamics (2008)
Mendel, J. Trevor, Proctor, Robert N., Forbes, Duncan A., Brough, Sarah
We use a combination of new AAOmega multi-object wide-field spectroscopic observations and literature data to define 111 spectroscopically confirmed members of the massive NGC 5044 group with...
Keck spectroscopy of globular clusters in the spiral galaxy NGC 2683 (2008)
Proctor, Robert N., Forbes, Duncan A., Brodie, Jean P., Strader, Jay
We analyse Keck spectra of 24 candidate globular clusters (GCs) associated with the spiral galaxy NGC 2683. We identify 19 bona fide GCs based on their recession velocities, of which 15 were suitable...
Galaxy and Mass Assembly (GAMA) (2008)
Driver, Simon P., Baldry, Ivan K., Bamford, S., Bland-Hawthorn, Joss, Bridges, Terry J., Cameron, Ewan, ...
The GAMA survey aims to deliver 250,000 optical spectra (3--7Ang resolution) over 250 sq. degrees to spectroscopic limits of r_{AB}
Galaxy and Mass Assembly (GAMA) (2008)
Driver, Simon P., Baldry, Ivan K., Bamford, S., Bland-Hawthorn, Joss, Bridges, Terry J., Cameron, Ewan, ...
The GAMA survey aims to deliver 250,000 optical spectra (3--7Ang resolution) over 250 sq. degrees to spectroscopic limits of r_{AB}
Spolaor, Max, Forbes, Duncan A., Hau, George K. T., Proctor, Robert N., Brough, Sarah
This is the first paper of a series focused on investigating the star formation and evolutionary history of the two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of...
Spolaor, Max, Forbes, Duncan A., Proctor, Robert N., Hau, George K. T., Brough, Sarah
We present a possible star formation and chemical evolutionary history for two early-type galaxies NGC 1407 and NGC 1400. They are the two brightest galaxies of the NGC 1407 (or Eridanus-A) group,...
The anatomy of the NGC5044 group I: group membership and dynamics (2008)
Mendel, J. Trevor, Proctor, Robert N., Forbes, Duncan A., Brough, Sarah
We use a combination of new AAOmega multi-object wide-field spectroscopic observations and literature data to define 111 spectroscopically confirmed members of the massive NGC 5044 group with...
The effects of stellar populations on galaxy scaling relations in the 6dF Galaxy Survey (2008)
Proctor, Robert N., Lah, Philip, Forbes, Duncan A., Colless, Matthew, Couch, Warrick J.
We present an analysis of the stellar populations as a function of mass in a sample of ~7000 galaxies of all morphological and emission types from the 6dF Galaxy Survey. We measure velocity...
Keck spectroscopy of globular clusters in the spiral galaxy NGC 2683 (2008)
Proctor, Robert N., Forbes, Duncan A., Brodie, Jean P., Strader, Jay
We analyse Keck spectra of 24 candidate globular clusters (GCs) associated with the spiral galaxy NGC 2683. We identify 19 bona fide GCs based on their recession velocities, of which 15 were suitable...
Galaxy and Mass Assembly (GAMA) (2008)
Driver, Simon P., Baldry, Ivan K., Bamford, S., Bland-Hawthorn, Joss, Bridges, Terry J., Cameron, Ewan, ...
The GAMA survey aims to deliver 250,000 optical spectra (3--7Ang resolution) over 250 sq. degrees to spectroscopic limits of r_{AB}
Keck spectroscopy of globular clusters in the spiral galaxy NGC 2683 (2007)
Proctor, Robert N., Forbes, Duncan A., Brodie, Jean P., Strader, Jay
We analyse Keck spectra of 24 candidate globular clusters (GCs) associated with the spiral galaxy NGC 2683. We identify 19 bona fide GCs based on their recession velocities, of which 15 were suitable...
Mendel, Jon T., Proctor, Robert N., Forbes, Duncan A.
Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic GCs provide an excellent medium in which to test the consistency of...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Søren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
Spatially resolved spectroscopy of early-type galaxies over a range in mass (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a wide range in luminosity and hence mass. Rotation velocity and velocity dispersions,...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Soren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
Spatially resolved spectroscopy of early-type galaxies over a range in mass (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a wide range in luminosity and hence mass. Rotation velocity and velocity dispersions,...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Soren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
Spatially resolved spectroscopy of early-type galaxies over a range in mass (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a wide range in luminosity and hence mass. Rotation velocity and velocity dispersions,...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Soren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies (2007)
Colless, Matthew, Jones, Heath, Proctor, Robert N., Harrison, Craig, Campbell, Lachlan, Lah, Philip
The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between...
Stellar population gradients in early-type galaxies (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Ocvirk, Pierre, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a range in luminosity. Rotation velocity and velocity dispersions, together with 20 Lick...
The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies (2007)
Colless, Matthew, Jones, Heath, Proctor, Robert N., Harrison, Craig, Campbell, Lachlan, Lah, Philip
The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between...
Spatially resolved kinematics and stellar populations of brightest cluster and group galaxies (2007)
Brough, Sarah, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J., Collins, Chris A., Burke, Douglas J., ...
We present an examination of the kinematics and stellar populations of a sample of three brightest group galaxies (BGGs) and three brightest cluster galaxies (BCGs) in X-ray groups and clusters. We...
Mendel, Jon T., Proctor, Robert N., Forbes, Duncan A.
Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic globular clusters (GCs) provide an excellent medium in which to...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
Spatially resolved spectroscopy of early-type galaxies over a range in mass (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a wide range in luminosity and hence mass. Rotation velocity and velocity dispersions,...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Soren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies (2007)
Colless, Matthew, Jones, Heath, Proctor, Robert N., Harrison, Craig, Campbell, Lachlan, Lah, Philip
The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between...
Stellar population gradients in early-type galaxies (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Ocvirk, Pierre, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a range in luminosity. Rotation velocity and velocity dispersions, together with 20 Lick...
Spatially resolved kinematics and stellar populations of brightest cluster and group galaxies (2007)
Brough, Sarah, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J., Collins, Chris A., Burke, Douglas J., ...
We present an examination of the kinematics and stellar populations of a sample of three brightest group galaxies (BGGs) and three brightest cluster galaxies (BCGs) in X-ray groups and clusters. We...
Mendel, Jon T., Proctor, Robert N., Forbes, Duncan A.
Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic globular clusters (GCs) provide an excellent medium in which to...
Stellar population gradients in early-type galaxies (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Ocvirk, Pierre, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a range in luminosity. Rotation velocity and velocity dispersions, together with 20 Lick...
Spatially resolved kinematics and stellar populations of brightest cluster and group galaxies (2007)
Brough, Sarah, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J., Collins, Chris A., Burke, Douglas J., ...
We present an examination of the kinematics and stellar populations of a sample of three brightest group galaxies (BGGs) and three brightest cluster galaxies (BCGs) in X-ray groups and clusters. We...
Mendel, Jon T., Proctor, Robert N., Forbes, Duncan A.
Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic globular clusters (GCs) provide an excellent medium in which to...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies (2007)
Colless, Matthew, Jones, Heath, Proctor, Robert N., Harrison, Craig, Campbell, Lachlan, Lah, Philip
The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between...
Stellar population gradients in early-type galaxies (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Ocvirk, Pierre, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a range in luminosity. Rotation velocity and velocity dispersions, together with 20 Lick...
Spatially resolved kinematics and stellar populations of brightest cluster and group galaxies (2007)
Brough, Sarah, Proctor, Robert N., Forbes, Duncan A., Couch, Warrick J., Collins, Chris A., Burke, Douglas J., ...
We present an examination of the kinematics and stellar populations of a sample of three brightest group galaxies (BGGs) and three brightest cluster galaxies (BCGs) in X-ray groups and clusters. We...
Mendel, Jon T., Proctor, Robert N., Forbes, Duncan A.
Establishing the reliability with which stellar population parameters can be measured is vital to extragalactic astronomy. Galactic globular clusters (GCs) provide an excellent medium in which to...
Damp mergers : recent gaseous mergers without significant globular cluster formation? (2007)
Forbes, Duncan A., Proctor, Robert N., Strader, Jay, Brodie, Jean P.
Here we test the idea that new globular clusters (GCs) are formed in the same gaseous ('wet') mergers or interactions that give rise to the young stellar populations seen in the central regions of...
Spatially resolved spectroscopy of early-type galaxies over a range in mass (2007)
Sanchez-Blazquez, Patricia, Forbes, Duncan A., Strader, Jay, Brodie, Jean P., Proctor, Robert N.
Long-slit spectra have been obtained with the Keck telescope for a sample of 11 early-type galaxies covering a wide range in luminosity and hence mass. Rotation velocity and velocity dispersions,...
The spatially resolved stellar populations of isolated early-type galaxies (2007)
Reda, Fatma M., Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Larsen, Soren S.
We present radial stellar population parameters for a subsample of 12 galaxies from the 36 isolated early-type galaxies of Reda et al. Using new long-slit spectra, central values and radial gradients...
The 6dF Galaxy Survey: a low-redshift benchmark for bulge-dominated galaxies (2007)
Colless, Matthew, Jones, Heath, Proctor, Robert N., Harrison, Craig, Campbell, Lachlan, Lah, Philip
The 6dF Galaxy Survey provides a very large sample of galaxies with reliable measurements of Lick line indices and velocity dispersions. This sample can be used to explore the correlations between...
X-ray observations of three young, early-type galaxies (2006)
Sansom, Anne E., O'Sullivan, Esther, Forbes, Duncan A., Proctor, Robert N., Davis, D. Scott
Massive haloes of hot plasma exist around some, but not all elliptical galaxies. There is evidence that this is related to the age of the galaxy. In this paper, new X-ray observations are presented...
X-ray observations of three young, early-type galaxies (2006)
Sansom, Anne E., O'Sullivan, Esther, Forbes, Duncan A., Proctor, Robert N., Davis, D. Scott
Massive haloes of hot plasma exist around some, but not all elliptical galaxies. There is evidence that this is related to the age of the galaxy. In this paper, new X-ray observations are presented...
X-ray observations of three young, early-type galaxies (2006)
Sansom, Anne E., O'Sullivan, Esther, Forbes, Duncan A., Proctor, Robert N., Davis, D. Scott
Massive haloes of hot plasma exist around some, but not all elliptical galaxies. There is evidence that this is related to the age of the galaxy. In this paper, new X-ray observations are presented...
X-ray observations of three young, early-type galaxies (2006)
Sansom, Anne E., O'Sullivan, Esther, Forbes, Duncan A., Proctor, Robert N., Davis, D. Scott
Massive haloes of hot plasma exist around some, but not all elliptical galaxies. There is evidence that this is related to the age of the galaxy. In this paper, new X-ray observations are presented...
X-ray observations of three young, early-type galaxies (2006)
Sansom, Anne E., O'Sullivan, Esther, Forbes, Duncan A., Proctor, Robert N., Davis, D. Scott
Massive haloes of hot plasma exist around some, but not all elliptical galaxies. There is evidence that this is related to the age of the galaxy. In this paper, new X-ray observations are presented...
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities, and abundance ratios ([α/Fe]) from the integrated spectra of 23 globular clusters in M31 by employing multivariate fits to two different stellar population models. We...
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay, ...
No abstract available.
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
The correlation of metallicity gradient with galaxy mass (2005)
Forbes, Duncan A., Sanchez-Blasquez, Patricia, Proctor, Robert N.
A number of previous studies have searched for a correlation between radial metallicity gradients and early-type galaxy mass – no convincing trends have been found. Here we re-examine this issue...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities, and abundance ratios ([α/Fe]) from the integrated spectra of 23 globular clusters in M31 by employing multivariate fits to two different stellar population models. We...
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay
No abstract available.
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
The correlation of metallicity gradient with galaxy mass (2005)
Forbes, Duncan A., Sanchez-Blasquez, Patricia, Proctor, Robert N.
A number of previous studies have searched for a correlation between radial metallicity gradients and early-type galaxy mass – no convincing trends have been found. Here we re-examine this issue...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities, and abundance ratios ([α/Fe]) from the integrated spectra of 23 globular clusters in M31 by employing multivariate fits to two different stellar population models. We...
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay
No abstract available.
The correlation of metallicity gradient with galaxy mass (2005)
Forbes, Duncan A., Sanchez-Blasquez, Patricia, Proctor, Robert N.
A number of previous studies have searched for a correlation between radial metallicity gradients and early-type galaxy mass – no convincing trends have been found. Here we re-examine this issue...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities, and abundance ratios ([α/Fe]) from the integrated spectra of 23 globular clusters in M31 by employing multivariate fits to two different stellar population models. We...
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay
No abstract available.
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay
No abstract available.
Evolutionary history of the elliptical galaxy NGC 1052 (2005)
Pierce, Michael, Brodie, Jean P., Forbes, Duncan A., Beasley, Michael A., Proctor, Robert N., Strader, Jay
No abstract available.
The correlation of metallicity gradient with galaxy mass (2005)
Forbes, Duncan A., Sanchez-Blasquez, Patricia, Proctor, Robert N.
A number of previous studies have searched for a correlation between radial metallicity gradients and early-type galaxy mass – no convincing trends have been found. Here we re-examine this issue...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities, and abundance ratios ([α/Fe]) from the integrated spectra of 23 globular clusters in M31 by employing multivariate fits to two different stellar population models. We...
Spatially resolved stellar populations in the isolated elliptical NGC 821 (2005)
Proctor, Robert N., Forbes, Duncan A., Forestell, Amy, Gebhardt, Karl
We present the analysis of Lick absorption-line indices from three separate long-slit spectroscopic observations of the nearby isolated elliptical galaxy NGC 821. The three data sets present a...
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
We derive ages, metallicities and [alpha/Fe] ratios from the integrated spectra of 23 globular clusters in M31, by employing multivariate fits to two stellar population models. In parallel we analyze...
Proctor, Robert N., Forbes, Duncan A., Beasley, Michael A.
We define a method for analysis of the integrated spectra of extra-galactic globular clusters that provides more reliable measures of age, metallicity and alpha-element abundance ratio than have so...
The Chemical Properties of Milky Way and M31 Globular Clusters: I. A Comparative Study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
A comparative analysis is performed between high-quality integrated spectra of 30 globular clusters in M31, 20 Milky Way clusters, and a sample of field and cluster elliptical galaxies. We find that...
Ages and Metallicities of Hickson Compact Group Galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, G. M., Contreras, R., ...
Hickson Compact Groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...
The chemical properties of Milky Way and M31 globular clusters I : a comparative study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
Abstract not available.
Probing spectral line gradients beyond one effective radius in NGC 3610 (2004)
Howell, Justin H., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N.
The outer region [(0.75-1.25)re in the B band] of the merger remnant elliptical galaxy NGC 3610 is studied using extremely high signal-to-noise ratio Keck spectra, with a supplementary spectrum of...
Ages and metallicities of Hickson compact group galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, Gayadhi, Contreras, Rodrigo, ...
Hickson compact groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...
The chemical properties of Milky Way and M31 globular clusters I : a comparative study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
Abstract not available.
Probing spectral line gradients beyond one effective radius in NGC 3610 (2004)
Howell, Justin H., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N.
The outer region [(0.75-1.25)re in the B band] of the merger remnant elliptical galaxy NGC 3610 is studied using extremely high signal-to-noise ratio Keck spectra, with a supplementary spectrum of...
Proctor, Robert N., Forbes, Duncan A., Beasley, Michael A.
We define a method for the analysis of the integrated spectra of extragalactic globular clusters that provides more reliable measures of the age, metallicity and α-element abundance ratio than have...
Ages and metallicities of Hickson compact group galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, Gayadhi, Contreras, Rodrigo, ...
Hickson compact groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...
The chemical properties of Milky Way and M31 globular clusters I : a comparative study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
Abstract not available.
Probing spectral line gradients beyond one effective radius in NGC 3610 (2004)
Howell, Justin H., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N.
The outer region [(0.75-1.25)re in the B band] of the merger remnant elliptical galaxy NGC 3610 is studied using extremely high signal-to-noise ratio Keck spectra, with a supplementary spectrum of...
Proctor, Robert N., Forbes, Duncan A., Beasley, Michael A.
We define a method for the analysis of the integrated spectra of extragalactic globular clusters that provides more reliable measures of the age, metallicity and α-element abundance ratio than have...
Ages and metallicities of Hickson compact group galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, Gayadhi, Contreras, Rodrigo, ...
Hickson compact groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...
The chemical properties of Milky Way and M31 globular clusters I : a comparative study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
Abstract not available.
Probing spectral line gradients beyond one effective radius in NGC 3610 (2004)
Howell, Justin H., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N.
The outer region [(0.75-1.25)re in the B band] of the merger remnant elliptical galaxy NGC 3610 is studied using extremely high signal-to-noise ratio Keck spectra, with a supplementary spectrum of...
Proctor, Robert N., Forbes, Duncan A., Beasley, Michael A.
We define a method for the analysis of the integrated spectra of extragalactic globular clusters that provides more reliable measures of the age, metallicity and α-element abundance ratio than have...
Ages and metallicities of Hickson compact group galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, Gayadhi, Contreras, Rodrigo, ...
Hickson compact groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...
The chemical properties of Milky Way and M31 globular clusters I : a comparative study (2004)
Beasley, Michael A., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N., Barmby, Pauline, ...
Abstract not available.
Proctor, Robert N., Forbes, Duncan A., Beasley, Michael A.
We define a method for the analysis of the integrated spectra of extragalactic globular clusters that provides more reliable measures of the age, metallicity and α-element abundance ratio than have...
Probing spectral line gradients beyond one effective radius in NGC 3610 (2004)
Howell, Justin H., Brodie, Jean P., Strader, Jay, Forbes, Duncan A., Proctor, Robert N.
The outer region [(0.75-1.25)re in the B band] of the merger remnant elliptical galaxy NGC 3610 is studied using extremely high signal-to-noise ratio Keck spectra, with a supplementary spectrum of...
Ages and metallicities of Hickson compact group galaxies (2004)
Proctor, Robert N., Forbes, Duncan A., Hau, George K. T., Beasley, Michael A., De Silva, Gayadhi, Contreras, Rodrigo, ...
Hickson compact groups (HCGs) constitute an interesting extreme in the range of environments in which galaxies are located, as the space density of galaxies in these small groups are otherwise only...