Stewart, Kyle R., Bullock, James S., Barton, Elizabeth J., Wechsler, Risa H.
We employ a high-resolution LCDM N-body simulation to present merger rate predictions for dark matter halos and investigate how common merger-related observables for galaxies--such as close pair...
The Assembly of Galaxy Clusters (2008)
Berrier, Joel C., Stewart, Kyle R., Bullock, James S., Purcell, Chris W., Barton, Elizabeth J., Wechsler, Risa H.
We study the formation of fifty-three galaxy cluster-size dark matter halos formed within a pair of cosmological LCDM N-body simulations, and track the accretion histories of cluster subhalos with...
A Candidate Brightest Proto-Cluster Galaxy at z = 3.03 (2008)
Cooke, Jeff, Barton, Elizabeth J., Bullock, James S., Stewart, Kyle R., Wolfe, Arthur M.
We report the discovery of a very bright (m_R = 22.2) Lyman break galaxy at z = 3.03 that appears to be a massive system in a late stage of merging. Deep imaging reveals multiple peaks in the...
Isolating Triggered Star Formation (2007)
Barton, Elizabeth J., Arnold, Jacob A., Zentner, Andrew R., Bullock, James S., Wechsler, Risa H.
Galaxy pairs provide a potentially powerful means of studying triggered star formation from galaxy interactions. We use a large cosmological N-body simulation coupled with a well-tested semi-analytic...
A Search for Low Surface Brightness Structure Around Compact Narrow Emission Line Galaxies (2006)
Barton, Elizabeth J., Van Zee, Liese, Bershady, Matthew A.
As the most extreme members of the rapidly evolving faint blue galaxy population at intermediate redshift, the compact narrow emission line galaxies (CNELGs) are intrinsically luminous (-22 < M_B <...
Infrared Properties of Close Pairs of Galaxies (2006)
Geller, Margaret J., Kenyon, Scott J., Barton, Elizabeth J., Jarrett, Thomas H., Kewley, Lisa J.
We discuss spectroscopy and infrared photometry for a complete sample of ~ 800 galaxies in close pairs objectively selected from the CfA2 redshift survey. We use 2MASS to compare near infrared...
Close Galaxy Counts as a Probe of Hierarchical Structure Formation (2006)
Berrier, Joel C., Bullock, James S., Barton, Elizabeth J., Guenther, Heather D., Zentner, Andrew R., Wechsler, Risa H.
Standard LCDM predicts that the major merger rate of galaxy-size dark matter halos rises rapidly with redshift. The average number of close companions per galaxy, Nc, is often used to infer the...
Tidally Triggered Star Formation in Close Pairs of Galaxies: Major and Minor Interactions (2006)
Woods, Deborah Freedman, Geller, Margaret J., Barton, Elizabeth J.
We study star formation in a sample of 345 galaxies in 167 pairs and compact groups drawn from the original CfA2 Redshift Survey and from a follow-up search for companions. We construct our sample...
Probing the coevolution of supermassive black holes and quasar host galaxies (2006)
Peng, Chien Y., Impey, Chris D., Ho, Luis C., Barton, Elizabeth J., Rix, Hans-Walter
At low redshift, there are fundamental correlations between the mass of supermassive black holes (MBH) and the mass (Mbulge) and luminosity of the host galaxy bulge. We investigate the same relation...
Probing the Coevolution of Supermassive Black Holes and Quasar Host Galaxies (2005)
Peng, Chien Y., Impey, Chris D., Ho, Luis C., Barton, Elizabeth J., Rix, Hans-Walter
At low redshift, there are fundamental correlations between the mass of supermassive black holes (MBH) and the mass (Mbulge) and luminosity of the host galaxy bulge. We investigate the same relation...
Probing Galaxy Formation with He II Cooling Lines (2005)
Yang, Yujin, Zabludoff, Ann I., Davé, Romeel, Eisenstein, Daniel J., Pinto, Philip A., Katz, Neal, ...
Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a different temperature...
Accepted By Aj 2004 February 5 (2004)
Application At, Low Redshift, For High Redshift, Sheila J. Kannappan, Elizabeth J. Barton
Studies of high-redshift galaxies usually interpret offsets from the Tully-Fisher (TF) relation as luminosity evolution. However, apparent luminosity offsets may actually reflect anomalous velocity...
Kannappan, Sheila J., Barton, Elizabeth J.
Studies of high-redshift galaxies usually interpret offsets from the Tully- Fisher (TF) relation as luminosity evolution. However, apparent luminosity offsets may actually reflect rotation curve...
Forming Young Bulges within Existing Disks: Statistical Evidence for External Drivers (2003)
Kannappan, Sheila J., Jansen, Rolf A., Barton, Elizabeth J.
Contrary to traditional models of galaxy formation, recent observations suggest that some bulges form within preexisting disk galaxies. Such late-epoch bulge formation within disks seems to be linked...
Searching for Star Formation Beyond Reionization (2003)
Barton, Elizabeth J., Dav'e, Romeel, Smith, John-David T., Papovich, Casey, Hernquist, Lars, Springel, Volker
The goal of searching back in cosmic time to find star formation during the epoch of reionization will soon be within reach. We assess the detectability of high-redshift galaxies by combining...
Possible Local Spiral Counterparts to Compact Blue Galaxies at Intermediate Redshift (2001)
Barton, Elizabeth J., Van Zee, Liese
We identify nearby disk galaxies with optical structural parameters similar to those of intermediate-redshift compact blue galaxies. By comparing HI and optical emission-line widths, we show that the...
Rotation Curve Measurement using Cross-Correlation (2000)
Elizabeth J. Barton, Michael J. Kurtz, Margaret J. Geller
Longslit spectroscopy is entering an era of increased spatial and spectral resolution and increased sample size. Improved instruments reveal complex velocity structure that cannot be described with a...
Barton, Elizabeth J., Geller, Margaret J., Bromley, Benjamin C., Van Zee, Liese, Kenyon, Scott J.
We use optical rotation curves to investigate the R-band Tully-Fisher properties of a sample of 90 spiral galaxies in close pairs. The galaxies follow the Tully-Fisher relation remarkably well, with...
Rotation Curve Measurement using Cross-Correlation (2000)
Barton, Elizabeth J., Kannappan, Sheila J., Kurtz, Michael J., Geller, Margaret J.
Longslit spectroscopy is entering an era of increased spatial and spectral resolution and increased sample size. Improved instruments reveal complex velocity structure that cannot be described with a...
Tidally-Triggered Star Formation in Close Pairs of Galaxies (1999)
Barton, Elizabeth J., Geller, Margaret J., Kenyon, Scott J.
We analyze new optical spectra of a sample of 502 galaxies in close pairs and n-tuples, separated by
Kinematic effects of tidal interaction on galaxy rotation curves (1999)
Bromley, Benjamin C., Barton, Elizabeth J.; Geller, Margaret J.
We use self-consistent N-body models in conjunction with models of test particles moving in galaxy potentials to explore the initial effects of interactions on the rotation curves of spiral galaxies....
Kinematic Effects of Tidal Interaction on Galaxy Rotation Curves (1998)
Barton, Elizabeth J., Bromley, Benjamin C., Geller, Margaret J.
We use self-consistent N-body models, in conjunction with models of test particles moving in galaxy potentials, to explore the initial effects of interactions on the rotation curves of spiral...