George K. T. Hau

Discovery of an optical counterpart to the hyperluminous X-ray source in ESO 243-49 (2009)

Soria, Roberto, Hau, George K. T., Graham, Alister W., Kong, Albert K. H., Kuin, N. Paul M., Li, I-Hui, ...

The existence of black holes of masses ~ 10^3-10^4 Msun has important implications for the formation and evolution of star clusters and galaxies. The strongest candidate so far is the hyperluminous...

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...

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 outer halo globular clusters of M31 (2009)

Alves-Brito, Alan, Forbes, Duncan A., Mendel, Jon T., Hau, George K. T., Murphy, Michael T.

We present Keck/HIRES spectra of three globular clusters in the outer halo of M31, at projected distances beyond approximate to 80 kpc from M31. The measured recession velocities for all three...

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 outer halo globular clusters of M31 (2009)

Alves-Brito, Alan, Forbes, Duncan A., Mendel, Jon T., Hau, George K. T., Murphy, Michael T.

We present Keck/HIRES spectra of three globular clusters in the outer halo of M31, at projected distances beyond approximate to 80 kpc from M31. The measured recession velocities for all three...

The early-type galaxies NGC 1407 and NGC 1400 - I: spatially resolved radial kinematics and surface photometry (2008)

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...

The early-type galaxies NGC 1407 and NGC 1400 - II: star formation and chemical evolutionary history (2008)

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,...

Is NGC 3108 transforming itself from an early- to late-type galaxy: an astronomical hermaphrodite? (2008)

Hau, George K. T., Bower, Richard G., Kilborn, Virginia, Forbes, Duncan A., Balogh, Michael L., Oosterloo, Tom

A common feature of hierarchical galaxy formation models is the process of 'inverse' morphological transformation: a bulge dominated galaxy accretes a gas disc, dramatically reducing the system's...

The early-type galaxies NGC 1407 and NGC 1400 I: spatially resolved radial kinematics and surface photometry (2008)

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...

The early-type galaxies NGC 1407 and NGC 1400 II: star formation and chemical evolutionary history (2008)

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 early-type galaxies NGC 1407 and NGC 1400 I: spatially resolved radial kinematics and surface photometry (2008)

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...

The early-type galaxies NGC 1407 and NGC 1400 II: star formation and chemical evolutionary history (2008)

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,...

Is NGC 3108 transforming itself from an early- to late-type galaxy: an astronomical hermaphrodite? (2008)

Hau, George K. T., Bower, Richard G., Kilborn, Virginia, Forbes, Duncan A., Balogh, Michael L., Oosterloo, Tom

A common feature of hierarchical galaxy formation models is the process of 'inverse' morphological transformation: a bulge dominated galaxy accretes a gas disc, dramatically reducing the system's...

The early-type galaxies NGC 1407 and NGC 1400 I: spatially resolved radial kinematics and surface photometry (2008)

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...

The early-type galaxies NGC 1407 and NGC 1400 II: star formation and chemical evolutionary history (2008)

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,...

Is NGC 3108 transforming itself from an early- to late-type galaxy: an astronomical hermaphrodite? (2008)

Hau, George K. T., Bower, Richard G., Kilborn, Virginia, Forbes, Duncan A., Balogh, Michael L., Oosterloo, Tom

A common feature of hierarchical galaxy formation models is the process of 'inverse' morphological transformation: a bulge dominated galaxy accretes a gas disc, dramatically reducing the system's...

The early-type galaxies NGC 1407 and NGC 1400 I: spatially resolved radial kinematics and surface photometry (2008)

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...

The early-type galaxies NGC 1407 and NGC 1400 II: star formation and chemical evolutionary history (2008)

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,...

Is NGC 3108 transforming itself from an early- to late-type galaxy: an astronomical hermaphrodite? (2008)

Hau, George K. T., Bower, Richard G., Kilborn, Virginia, Forbes, Duncan A., Balogh, Michael L., Oosterloo, Tom

A common feature of hierarchical galaxy formation models is the process of 'inverse' morphological transformation: a bulge dominated galaxy accretes a gas disc, dramatically reducing the system's...

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...

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 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 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 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...

Generalizations of the Tully-Fisher relation for early- and late-type galaxies (2007)

De Rijcke, Sven, Zeilinger, Werner W., Hau, George K. T., Prugniel, P., Dejonghe, Herwig

We study the locus of dwarf and giant early- and late-type galaxies on the Tully-Fisher relation (TFR), the stellar mass Tully-Fisher relation (sTFR), and the so-called baryonic or H I gas+stellar...

An observational limit on the dwarf galaxy population of the local group (2007)

Whiting, Alan B., Hau, George K. T., Irwin, Mike, Verdugo, Miguel

We present the results of an all-sky, deep optical survey for faint Local Group dwarf galaxies. Candidate objects were selected from the second Palomar Observatory Sky Survey and ESO/Science Research...

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...

Generalizations of the Tully-Fisher relation for early- and late-type galaxies (2007)

De Rijcke, Sven, Zeilinger, Werner W., Hau, George K. T., Prugniel, P., Dejonghe, Herwig

We study the locus of dwarf and giant early- and late-type galaxies on the Tully-Fisher relation (TFR), the stellar mass Tully-Fisher relation (sTFR), and the so-called baryonic or H I gas+stellar...

An observational limit on the dwarf galaxy population of the local group (2007)

Whiting, Alan B., Hau, George K. T., Irwin, Mike, Verdugo, Miguel

We present the results of an all-sky, deep optical survey for faint Local Group dwarf galaxies. Candidate objects were selected from the second Palomar Observatory Sky Survey and ESO/Science Research...

An Observational Limit on the Dwarf Galaxy Population of the Local Group (2006)

Whiting, Alan B., Hau, George K. T., Irwin, Mike, Verdugo, Miguel

We present the results of an all-sky, deep optical survey for faint Local Group dwarf galaxies. Candidate objects were selected from the second Palomar survey (POSS-II) and ESO/SRC survey plates and...

The fundamental plane of isolated early-type galaxies (2005)

Reda, Fatma M., Forbes, Duncan A., Hau, George K. T.

Here we present new measurements of effective radii, surface brightnesses and internal velocity dispersions for 23 isolated early-type galaxies. The photometric properties are derived from new...

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...

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...

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 kinematic properties of isolated elliptical galaxies (2004)

Forbes, Duncan A., Hau, George K. T., Reda, Fatma M.

Ellipticals in very low density environments are extremely rare but hold important clues about galaxy formation and evolution. We present results of an investigation of their internal dynamics. We...

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...

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...

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 kinematic properties of isolated elliptical galaxies (2004)

Forbes, Duncan A., Hau, George K. T., Reda, Fatma M.

Ellipticals in very low density environments are extremely rare but hold important clues about galaxy formation and evolution. We present results of an investigation of their internal dynamics. We...

Observational evidence for a connection between supermassive black holes and dark matter haloes (2003)

Baes, Maarten, Buyle, Pieter, Hau, George K. T., Dejonghe, Herwig

We present new velocity dispersion measurements of sample of 12 spiral galaxies for which extended rotation curves are available. These data are used to refine a recently discovered correlation...

Observational evidence for a connection between supermassive black holes and dark matter haloes (2003)

Baes, Maarten, Buyle, Pieter, Hau, George K. T., Dejonghe, Herwig B.

We present new velocity dispersion measurements of a sample of 12 spiral galaxies for which extended rotation curves are available. These data are used to refine a recently discovered correlation...

The Tully-Fisher relation of cluster spirals at z = 0.83 (2003)

Milvang-Jensen, Bo O., Aragon-Salamanca, Alfonso, Hau, George K. T., Jorgensen, Inger, Hjorth, Jens Peter

We present the rest-frame B-band Tully-Fisher relation for a sample of 8 cluster spiral galaxies at z = 0.83 and 19 field spirals at z = 0.15-0.90 based on Very Large Telescope (VLT) spectroscopy and...

Observational evidence for a connection between supermassive black holes and dark matter haloes (2003)

Baes, Maarten, Buyle, Pieter, Hau, George K. T., Dejonghe, Herwig B.

We present new velocity dispersion measurements of a sample of 12 spiral galaxies for which extended rotation curves are available. These data are used to refine a recently discovered correlation...

The Tully-Fisher relation of cluster spirals at z = 0.83 (2003)

Milvang-Jensen, Bo O., Aragon-Salamanca, Alfonso, Hau, George K. T., Jorgensen, Inger, Hjorth, Jens Peter

We present the rest-frame B-band Tully-Fisher relation for a sample of 8 cluster spiral galaxies at z = 0.83 and 19 field spirals at z = 0.15-0.90 based on Very Large Telescope (VLT) spectroscopy and...

The Tully-Fisher relation of cluster spirals at z = 0.83 (2002)

Milvang-Jensen, Bo, Aragon-Salamanca, Alfonso, Hau, George K. T., Jorgensen, Inger, Hjorth, Jens

We present the rest-frame B-band Tully-Fisher relation for a sample of 8 cluster spiral galaxies at z = 0.83 and 19 field spirals at z = 0.15-0.90 based on VLT spectroscopy and HST photometry. No...

The southern dwarf hunt: local group dwarf candidates in the southern sky (2002)

Whiting, Alan B., Hau, George K. T., Irwin, Mike

We present observations of 82 Local Group dwarf galaxy candidates, of which 62 were chosen visually from ESO-SRC survey plates of the southern sky (32 of which were not previously cataloged) and the...

The southern dwarf hunt: local group dwarf candidates in the southern sky (2002)

Whiting, Alan B., Hau, George K. T., Irwin, Mike

We present observations of 82 Local Group dwarf galaxy candidates, of which 62 were chosen visually from ESO-SRC survey plates of the southern sky (32 of which were not previously cataloged) and the...

A New Galaxy in the Local Group: the Antlia Dwarf Galaxy (1997)

Whiting, Alan B., Irwin, Mike J., Hau, George K. T.

We report the discovery of new member of the Local Group in the constellation of Antlia. Optically the system appears to be a typical dwarf spheroidal galaxy of type dE3.5 with no apparent young blue...