Smith, Russell J., Lucey, John R., Hudson, Michael J.
We use high signal-to-noise spectroscopy for a sample of 232 quiescent galaxies in the Shapley Supercluster, to investigate how their stellar populations depend on velocity dispersion, luminosity and...
Allanson, Steven P., Hudson, Michael J., Smith, Russell J., Lucey, John R.
This paper addresses the challenge of understanding the typical star formation histories of red sequence galaxies, using linestrength indices and mass-to-light ratios as complementary constraints on...
Smith, Russell J., Lucey, John R., Hudson, Michael J., Bridges, Terry J.
We analyse the abundance ratios of the light elements Mg, Ca, C and N, relative to Fe, for 147 red-sequence galaxies in the Coma cluster and the Shapley Supercluster. The sample covers a...
The Radio Luminosity Function and Galaxy Evolution in the Coma Cluster (2009)
Miller, Neal A., Hornschemeier, Ann E., Mobasher, Bahram, Bridges, Terry J., Hudson, Michael J., Marzke, Ronald O., ...
We investigate the radio luminosity function (RLF) and radio source population for two fields within the Coma cluster of galaxies. Our VLA data reach down to log(L) = 20.23 W/Hz for Coma, and we...
Smith, Russell J., Lucey, John R., Hudson, Michael J., Allanson, Steven P., Bridges, Terry J., Hornschemeier, Ann E., ...
We investigate the stellar populations in a sample of 89 faint (M*+2 to M*+4) red galaxies in the Coma cluster, using high S/N spectroscopy from the MMT. Our sample is drawn from two 1-degree fields,...
Watkins, Richard, Feldman, Hume A., Hudson, Michael J.
Peculiar velocity surveys have non-uniform spatial distributions of tracers, so that the bulk flow estimated from them does not correspond to that of a simple volume such as a sphere. Thus bulk flow...
Cosmic Flows on 100 Mpc/h scales (2008)
Feldman, Hume A., Hudson, Michael J., Watkins, Richard
To study galactic motions on the largest available scales, we require bulk flow moments whose window functions have as narrow a peak as possible and having as small an amplitude as possible outside...
Smith, Russell J., Marzke, Ronald O., Hornschemeier, Ann E., Bridges, Terry J., Hudson, Michael J., Miller, Neal A., ...
We analyse the stellar populations of 75 red-sequence dwarf galaxies in the Coma cluster, based on high signal-to-noise spectroscopy from the 6.5m MMT. The sample covers a luminosity range 3-4...
The HST/ACS Coma Cluster Survey: I - Survey Objectives and Design (2008)
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma cluster (Abell 1656). The survey was designed to...
NUV-IR colours of red sequence galaxies in local clusters (2008)
Rawle, Timothy D., Smith, Russell J., Lucey, John R., Hudson, Michael J., Wegner, Gary A.
We present GALEX near-UV (NUV) and 2MASS J band photometry for red sequence galaxies in local clusters. We define quiescent samples according to a strict emission threshold, removing galaxies with...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...
Bacillus anthracis: Balancing innocent research with dual-use potential (2008)
Hudson, Michael J., Beyer, Wolfgang, Böhm, Reinhard, Fasanella, Antonio, Garofolo, Giuliano, Golinski, Robert, ...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...
Ages and metallicities of faint red galaxies in the Shapley Supercluster (2007)
Smith, Russell J., Lucey, John R., Hudson, Michael J.
We present results on the stellar populations of 232 quiescent galaxies in the Shapley Supercluster, based on spectroscopy from the AAOmega spectrograph at the AAT. The key characteristic of this...
Smith, Russell J., Lucey, John R., Hudson, Michael J.
We present new optical spectroscopy for 342 R
The Masses and Shapes of Dark Matter Halos from Galaxy-Galaxy Lensing in the CFHTLS (2007)
Parker, Laura C., Hoekstra, Henk, Hudson, Michael J., Van Waerbeke, Ludovic, Mellier, Yannick
We present the first galaxy-galaxy weak lensing results using early data from the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). These results are based on ~22 sq. deg. of i' data. From this...
Edwards, L. O. V., Hudson, Michael J., Balogh, Michael L., Smith, Russell J.
We examine the optical emission line properties of Brightest Cluster Galaxies (BCGs) selected from two large, homogeneous datasets. The first is the X-ray selected National Optical Astronomy...
The Peculiar Velocities of Local Type Ia Supernovae and their Impact on Cosmology (2007)
Neill, James D., Hudson, Michael J., Conley, Alex
We quantify the effect of supernova Type Ia peculiar velocities on the derivation of cosmological parameters. The published distant and local Ia SNe used for the Supernova Legacy Survey first-year...
Smith, Russell J., Hudson, Michael J., Lucey, John R., Nelan, Jenica E., Wegner, Gary A.
We analyse absorption line-strength indices for ~3000 red-sequence galaxies in 94 nearby clusters, to investigate systematic variations of their stellar content with location in the host cluster. The...
Vaughan, Thomas E., Skipp, Paul J., O'Connor, C. David, Hudson, Michael J., Vipond, Richard, Elmore, Michael J., ...
Vaccines to prevent meningococcal disease have been developed from the outer membrane vesicles (OMVs) of Neisseria meningitidis and the related commensal organism Neisseria lactamica. In addition to...
Pike, R. W., Hudson, Michael J.
We compare the peculiar velocity field within 65 $h^{-1}$ Mpc predicted from 2MASS photometry and public redshift data to three independent peculiar velocity surveys based on type Ia supernovae,...
Mass-to-Light Ratios of Galaxy Groups from Weak Lensing (2005)
Parker, Laura C., Hudson, Michael J., Carlberg, Ray G., Hoekstra, Henk
We present the findings of our weak lensing study of a sample of 116 CNOC2 galaxy groups. The lensing signal is used to estimate the mass-to-light ratio of these galaxy groups. The best fit...
NOAO Fundamental Plane Survey -- II. Age and Metallicity along the Red Sequence (2005)
Nelan, Jenica E., Smith, Russell J., Hudson, Michael J., Wegner, Gary A., Lucey, John R., Moore, Stephen A. W., ...
We present spectroscopic linestrength data for 4097 red-sequence galaxies in 93 low-redshift galaxy clusters, and use these to investigate variations in average stellar populations as a function of...
Streaming motions of galaxy clusters within 12000 km/s - V. The peculiar velocity field (2004)
Hudson, Michael J., Smith, Russell J., Lucey, John R., Branchini, Enzo
We analyze in detail the peculiar velocity field traced by 56 clusters within 120 h^-1 Mpc in the Streaming Motions of Abell Clusters (SMAC) sample. The bulk flow of the SMAC sample is 687 +- 203...
The Consistency of Cosmic Flows on 100 Mpc/h Scales (2003)
We have compared the bulk flow of recent large-scale peculiar velocity surveys (SMAC, SC, Lauer and Postman, Willick, EFAR and Tonry's SNIa sample) to each other, allowing for the errors due to...
An examination into the development of golf courses in Nova Scotia / (2002)
"This is an authorized facsimile, made from the microfilm master copy of the original dissertation or master thesis published by UMI."
Cosmology with the Space-Luminosity Distribution of Virialized Halos (2001)
Marinoni, Christian, Hudson, Michael J., Giuricin, Giuliano
We derive the observed luminosity function of virialized systems. Coupling this statistic with the mass function predicted by CDM cosmogonies we obtain the functional behavior of the mass-to-light...
Early-type Galaxy Distances from the Fundamental Plane and Surface Brightness Fluctuations (2001)
Blakeslee, John P., Lucey, John R., Tonry, John L., Hudson, Michael J., Narayanan, Vijay K., Barris, Brian J.
We compare two methods for deriving distances to early-type galaxies: fundamental plane (FP) and surface brightness fluctuations (SBF) distances for 170 galaxies. A third set of distances is provided...
The Optical Luminosity Function of Virialized Systems (2001)
Marinoni, Christian, Hudson, Michael J., Giuricin, Giuliano
We determine the optical luminosity function of virialized systems over the full range of density enhancements, from single galaxies to clusters of galaxies. The analysis is based on galaxy systems...
Marinoni, Christian, Hudson, Michael J.
We compare the B-band luminosity function of virialized halos with the mass function predicted by the Press-Schechter theory in cold dark matter cosmogonies. We find that all cosmological models fail...
A Synthesis of Data from Fundamental Plane and Surface Brightness Fluctuation Surveys (2001)
Blakeslee, John P., Lucey, John R., Barris, Brian J., Hudson, Michael J., Tonry, John L.
We perform a series of comparisons between distance-independent photometric and spectroscopic properties used in the surface brightness fluctuations (SBF) and fundamental plane (FP) methods of...
Kuntschner, Harald, Lucey, John R., Smith, Russell J., Hudson, Michael J., Davies, Roger L.
We investigate the Mg-sigma and -sigma relations in a sample of 72 early-type galaxies drawn mostly from cluster and group environments using a homogeneous data-set which is well-calibrated onto the...
Bulk-flow and beta_I from the SMAC project (1999)
Smith, Russell J., Hudson, Michael J., Lucey, John R., Schlegel, David J., Davies, Roger L.
The SMAC project is a Fundamental Plane peculiar velocity survey of 56 clusters of galaxies to a depth of cz ~ 12000 km/s. We present here some results from the analysis of the SMAC velocity field,...
Are Recent Peculiar Velocity Surveys Consistent? (1999)
Hudson, Michael J., Smith, Russell J., Lucey, John R., Schlegel, David J., Davies, Roger L.
We compare the bulk flow of the SMAC sample to the predictions of popular cosmological models and to other recent large-scale peculiar velocity surveys. Both analyses account for aliasing of...
Cluster Distances: the Good, the Bad and the Ugly (1999)
Lucey, John R., Smith, Russell J., Hudson, Michael J., Schlegel, David J., Davies, Roger L.
Galaxy clusters are important targets for peculiar velocity studies as a direct comparison of the various distance indicators can be made. The potential problem of an environmental effect biasing the...
Conference Highlights: Cosmic Flows (1999)
I summarize the highlights of "Cosmic Flows: Towards an Understanding of the Large-scale Structure in the Universe", a workshop held in Victoria, Canada in July 1999.
A Large-Scale Bulk Flow of Galaxy Clusters (1998)
Hudson, Michael J., Smith, Russell J., Lucey, John R., Schlegel, David J., Davies, Roger L.
We report first results from the ``Streaming Motions of Abell Clusters'' (SMAC) project, an all-sky Fundamental Plane survey of 699 early-type galaxies in 56 clusters between ~3000 km/s and ~14000...
A Test for Large-Scale Systematic Errors in Maps of Galactic Reddening (1998)
Accurate maps of Galactic reddening are important for a number of applications, such as mapping the peculiar velocity field in the nearby Universe. Of particular concern are systematic errors which...
Hudson, Michael J., Gwyn, Stephen D. J., Dahle, Haakon, Kaiser, Nick
A tangential distortion of background source galaxies around foreground lens galaxies in the Hubble Deep Field is detected at the 99.3% confidence level. An important element of our analysis is the...
Hudson, Michael J., Ebeling, Harald
(Shortened) We construct a subsample of the Lauer & Postman (LP) brightest cluster galaxy (BCG) sample which comprises 64 Abell/ACO clusters with X-ray luminosities from ROSAT. We find that both BCG...
Wheeler, Jeremy G, Sethi, Dinesh, Cowden, John M, Wall, Patrick G, Rodrigues, Laura C, Tompkins, David S, ...
Neisseria lactamica Protects against Experimental Meningococcal Infection
Oliver, Kerry J., Reddin, Karen M., Bracegirdle, Philippa, Hudson, Michael J., Borrow, Ray, Feavers, Ian M., ...
Immunological and epidemiological evidence suggests that the development of natural immunity to meningococcal disease results from colonization of the nasopharynx by commensal Neisseria spp.,...
O'Dwyer, Clíona A., Reddin, Karen, Martin, Denis, Taylor, Stephen C., Gorringe, Andrew R., Hudson, Michael J., ...
Commensal neisseriae share with Neisseria meningitidis (meningococcus) a tendency towards overproduction of the bacterial outer envelope, leading to the formation and release during growth of outer...
Whalan, Rachael H., Funnell, Simon G. P., Bowler, Lucas D., Hudson, Michael J., Robinson, Andrew, Dowson, Christopher G.
Streptococcus pneumoniae is a major cause of morbidity and mortality worldwide. The existence of approximately 90 antigenically distinct capsular serotypes has greatly complicated the development of...
Wheeler, Jeremy G, Sethi, Dinesh, Cowden, John M, Wall, Patrick G, Rodrigues, Laura C, Tompkins, David S, ...
Neisseria lactamica Protects against Experimental Meningococcal Infection
Oliver, Kerry J., Reddin, Karen M., Bracegirdle, Philippa, Hudson, Michael J., Borrow, Ray, Feavers, Ian M., ...
Immunological and epidemiological evidence suggests that the development of natural immunity to meningococcal disease results from colonization of the nasopharynx by commensal Neisseria spp.,...
O'Dwyer, Clíona A., Reddin, Karen, Martin, Denis, Taylor, Stephen C., Gorringe, Andrew R., Hudson, Michael J., ...
Commensal neisseriae share with Neisseria meningitidis (meningococcus) a tendency towards overproduction of the bacterial outer envelope, leading to the formation and release during growth of outer...
Whalan, Rachael H., Funnell, Simon G. P., Bowler, Lucas D., Hudson, Michael J., Robinson, Andrew, Dowson, Christopher G.
Streptococcus pneumoniae is a major cause of morbidity and mortality worldwide. The existence of approximately 90 antigenically distinct capsular serotypes has greatly complicated the development of...