Urrutia, Tanya, Becker, Robert H., White, Richard L., Glikman, Eilat, Lacy, Mark, Hodge, Jacqueline, ...
We present results on a survey to find extremely dust-reddened Type 1 quasars. Combining the FIRST radio survey, the 2MASS Infrared Survey and the Sloan Digital Sky Survey, we have selected a...
Gregg, Michael D., Drinkwater, Michael J., Evstigneeva, Ekaterina A., Jurek, Russell, Karick, Arna M., Phillipps, Steven, ...
All the previously cataloged ultracompact dwarf (UCD) galaxies in the Fornax and Virgo clusters have 17.5 < bJ < 20. Using the 2dF spectrograph on the Anglo-Australian Telescope, we have...
Gregg, Michael D., Drinkwater, Michael J., Evstigneeva, Ekaterina A., Jurek, Russell, Karick, Arna M., Phillipps, Steven, ...
All the previously cataloged ultracompact dwarf (UCD) galaxies in the Fornax and Virgo clusters have 17.5 < bJ < 20. Using the 2dF spectrograph on the Anglo-Australian Telescope, we have...
Urrutia, Tanya, Becker, Robert H., White, Richard L., Glikman, Eilat, Lacy, Mark, Hodge, Jacqueline, ...
We present results on a survey to find extremely dust-reddened Type-1 Quasars. Combining the FIRST radio survey, the 2MASS Infrared Survey and the Sloan Digital Sky Survey, we have selected a...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
An HI survey of the Boötes void. II. The Analysis (2007)
Arpad Szomoru, Michael D. Gregg, Michael A. Strauss
. We discuss the results of a VLA 1 (Napier et al. 1983) Hi survey of the Bootes void and compare the distribution and Hi properties of the void galaxies to those of galaxies found in a survey of...
Michael J. Drinkwater, Michael D. Gregg
Version 3.0 corrected to MNRAS We describe a search for compact dwarf galaxies in the Fornax cluster using the FLAIR spectrograph on the UK Schmidt Telescope. We measured radial velocities of 453...
Paul L. Schechter, Michael D. Gregg, Robert H. Becker, David J. Helf, Richard L. White
The V = 16:9 quasar FBQ 0951+2635 at redshift z = 1:24 appears double on CCD exposures taken in subarcsecond seeing. The two objects are separated by 1: 00 1 and differ in brightness by 0.9 mag. VLA...
Michael J. Drinkwater, Michael D. Gregg, Matthew Colless
We present the first dynamical analysis of a galaxy cluster to include a large fraction of dwarf galaxies. Our sample of 108 Fornax Cluster members measured with the UK Schmidt Telescope FLAIR-II...
Michael J. Drinkwater, Michael D. Gregg, Quentin A. Parker, Rodney M. Smith, Jonathan I. Davies, J. Bryn Jones, ...
behind the Fornax Cluster. These galaxies are unresolved on UK Schmidt sky survey plates, and so they would be missing from most galaxy catalogs compiled from this material. The objects were found...
The Astrophysical Journal, Kenji Bekki, Warrick J. Couch, Michael J. Drinkwater, Michael D. Gregg
The origin of M32, the closest compact elliptical galaxy (cE), is a long-standing puzzle of galaxy formation in the Local Group. Our N-body/smoothed particle hydrodynamics simulations suggest a new...
Oguri, Masamune, Inada, Naohisa, Strauss, Michael A., Kochanek, Christopher S., Richards, Gordon T., Schneider, Donald P., ...
We present cosmological results from the statistics of lensed quasars in the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. By taking proper account of the selection function, we compute the...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., Shin, Min-Su, Richards, Gordon T., Hennawi, Joseph F., ...
We report the first results of our systematic search for strongly lensed quasars using the spectroscopically confirmed quasars in the Sloan Digital Sky Survey (SDSS). Among 46,420 quasars from the...
XMM-Newton Detection of the Rare FR II BAL Quasar FIRST J101614.3+520916 (2006)
Schaefer, Justin J., Brotherton, Michael S., Shang, Zhaohui, Gregg, Michael D., Becker, Robert H., Laurent-Muehleisen, Sally A., ...
We have detected FIRST J101614.3+520916 with the XMM-Newton X-ray Observatory. FIRST J101614.3+520916, one of the most extreme radio-loud, broad absorption line (BAL) quasars so far discovered, is...
Discovery of ultra-compact dwarf galaxies in the Virgo Cluster (2006)
Jones, J. B., Drinkwater, Michael J., Jurek, Russell, Phillipps, S., Gregg, Michael D., Bekki, Kenji, ...
We have discovered nine ultracompact dwarf galaxies (UCDs) in the Virgo Cluster, extending samples of these objects outside the Fornax Cluster. Using the Two Degree Field (2dF) multifiber...
Discovery of ultra-compact dwarf galaxies in the Virgo Cluster (2006)
Jones, J. B., Drinkwater, Michael J., Jurek, Russell, Phillipps, S., Gregg, Michael D., Bekki, Kenji, ...
We have discovered nine ultracompact dwarf galaxies (UCDs) in the Virgo Cluster, extending samples of these objects outside the Fornax Cluster. Using the Two Degree Field (2dF) multifiber...
Inada, Naohisa, Oguri, Masamune, Becker, Robert H., White, Richard L., Gregg, Michael D., Schechter, Paul L., ...
We report the discoveries of two, two-image gravitationally lensed quasars selected from the Sloan Digital Sky Survey: SDSS J0806+2006 at z_s=1.540 and SDSS J1353+1138 at z_s=1.629 with image...
SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar (2005)
Pindor, Bart, Eisenstein, Daniel J., Gregg, Michael D., Becker, Robert H., Inada, Naohisa, Oguri, Masamune, ...
We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) dataset. We have confirmed that SDSS J102111.02+491330.4 is a previously...
SDSS J0246-0825: A New Gravitationally Lensed Quasar from the Sloan Digital Sky Survey (2005)
Inada, Naohisa, Burles, Scott, Gregg, Michael D., Becker, Robert H., Schechter, Paul L., Eisenstein, Daniel J., ...
We report the discovery of a new two-image gravitationally lensed quasar, SDSS J024634.11-082536.2 (SDSS J0246-0825). This object was selected as a lensed quasar candidate from the Sloan Digital Sky...
Hennawi, Joseph F., Strauss, Michael A., Oguri, Masamune, Inada, Naohisa, Richards, Gordon T., Pindor, Bartosz, ...
We present a sample of 218 new quasar pairs with proper transverse separations R_prop < 1 Mpc/h over the redshift range 0.5 < z < 3.0, discovered from an extensive follow up campaign to find...
Oguri, Masamune, Inada, Naohisa, Hennawi, Joseph F., Richards, Gordon T., Johnston, David E., Frieman, Joshua A., ...
We report the discovery of two doubly imaged quasars, SDSS J100128.61+502756.9 and SDSS J120629.65+433217.6, at redshifts of 1.838 and 1.789, and with image separations of 2.86" and 2.90",...
Oguri, Masamune, Inada, Naohisa, Hennawi, Joseph F., Richards, Gordon T., Johnston, David E., Frieman, Joshua A., ...
We report the discovery of two doubly-imaged quasars, SDSS J100128.61+502756.9 and SDSS J120629.65+433217.6, at redshifts of 1.838 and 1.789 and with image separations of 2.86'' and 2.90'',...
Oguri, Masamune, Inada, Naohisa, Keeton, Charles R., Pindor, Bartosz, Hennawi, Joseph F., Gregg, Michael D., ...
We study the recently discovered gravitational lens SDSS J1004+4112, the first quasar lensed by a cluster of galaxies. It consists of four images with a maximum separation of 14.62". The system was...
Ultra-compact dwarf galaxies in galaxy clusters (2004)
Drinkwater, Michael J., Gregg, Michael D., Couch, Warrick J., Ferguson, Henry C., Hilker, Michael, Jones, J. Bryn, ...
We review the evidence that the ultra-compact dwarf (UCD) galaxies we recently discovered in the Fornax Cluster form a new, previously unknown class of galaxies and we discuss possible scenarios for...
Ultra-compact dwarf galaxies in galaxy clusters (2004)
Drinkwater, Michael J., Gregg, Michael D., Couch, Warrick J., Ferguson, Henry C., Hilker, Michael, Jones, J. Bryn, ...
We review the evidence that the ultra-compact dwarf (UCD) galaxies we recently discovered in the Fornax Cluster form a new, previously unknown class of galaxies and we discuss possible scenarios for...
A gravitationally lensed quasar with quadruple images separated by 14.62arcseconds (2003)
Inada, Naohisa, Oguri, Masamune, Pindor, Bartosz, Hennawi, Joseph F., Chiu, Kuenley, Zheng, Wei, ...
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures (that is, clusters of...
A class of compact dwarf galaxies from disruptive processes in galaxy clusters (2003)
Drinkwater, Michael John, Gregg, Michael D., Hilker, Michael, Bekki, Kenji, Couch, Warrick J., Ferguson, Henry C., ...
Dwarf galaxies have attracted increased attention in recent years, because of their susceptibility to galaxy transformation processes within rich galaxy clusters. Direct evidence for these processes,...
A class of compact dwarf galaxies from disruptive processes in galaxy clusters (2003)
Drinkwater, Michael John, Gregg, Michael D., Hilker, Michael, Bekki, Kenji, Couch, Warrick J., Ferguson, Henry C., ...
Dwarf galaxies have attracted increased attention in recent years, because of their susceptibility to galaxy transformation processes within rich galaxy clusters. Direct evidence for these processes,...
Drinkwater, Michael J., Gregg, Michael D., Hilker, Michael J., Bekki, Kenji, Couch, W. J., Ferguson, Henry C., ...
Dwarf galaxies have attracted increased attention in recent years, because of their susceptibility to galaxy transformation processes within rich galaxy clusters. Direct evidence for these processes,...
Drinkwater, Michael J., Gregg, Michael D., Hilker, Michael J., Bekki, Kenji, Couch, W. J., Ferguson, Henry C., ...
Dwarf galaxies have attracted increased attention in recent years, because of their susceptibility to galaxy transformation processes within rich galaxy clusters. Direct evidence for these processes,...
Drinkwater, Michael J., Bekki, Kenji, Couch, W., Phillipps, S., Jones, B., Gregg, Michael D.
We have used the 2dF spectrograph on the Anglo-Australian Telescope to obtain a complete spectroscopic sample of all objects in the magnitude range, 16.5 < bj < 19.8, regardless of morphology,...
Drinkwater, Michael J., Bekki, Kenji, Couch, W., Phillipps, S., Jones, B., Gregg, Michael D.
We have used the 2dF spectrograph on the Anglo-Australian Telescope to obtain a complete spectroscopic sample of all objects in the magnitude range, 16.5 < bj < 19.8, regardless of morphology,...
Substructure and Dynamics of the Fornax Cluster (2001)
Drinkwater, Michael J., Gregg, Michael D., Colless, Matthew
We present the first dynamical analysis of a galaxy cluster to include a large fraction of dwarf galaxies. Our sample of 108 Fornax Cluster members measured with the UK Schmidt Telescope FLAIR-II...
Composite Spectra from the FIRST Bright Quasar Survey (2000)
M. S. Brotherton, Hien D. Tran, R. H. Becker, Michael D. Gregg, R. L. White
We present a very high signal-to-noise ratio composite spectrum created using 657 radio-selected quasars from the FIRST Bright Quasar Survey. The spectrum spans rest-frame wavelengths 900 -- 7500 A....