424 citations · 8.7k across the 135 of their papers we have counts for
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Morphological Composition of z~0.4 groups: The site of S0 formation
D. J. Wilman, A. Oemler, J. S. Mulchaey +3
The low redshift Universe (z<~0.5) is not a dull place. Processes leading to the suppression of star formation and morphological transformation are prevalent: this is particularly…
RXJ1648.7+6109: Witnessing the Formation of a Massive Group/Poor Cluster and its Brightest Galaxy
T. E. Jeltema, J. S. Mulchaey, L. M. Lubin
Using deep Chandra and optical spectroscopic observations, we investigate an intriguing, young massive group, RXJ1648.7+6109, at z=0.376, and we combine these observations with pre…
Wide-Field Chandra X-Ray Observations of AGN in Abell 85 & Abell 754
Gregory R. Sivakoff, Paul Martini, Ann I. Zabludoff +2
To better understand the mechanism or mechanisms that lead to AGN activity today, we measure the X-ray AGN fraction in a new sample of nearby clusters and examine how it varies wit…
Evolution in the Disks and Bulges of Group Galaxies since z=0.4
Sean L. McGee, Michael L. Balogh, Robert D. E. Henderson +4
We present quantitative morphology measurements of a sample of optically selected group galaxies at 0.3 < z < 0.55 using the Hubble Space Telescope (HST) Advanced Camera for Survey…
The Hot Gas Halos of Galaxies in Groups
Tesla E. Jeltema, Breanna Binder, John S. Mulchaey
We use Chandra observations of 13 nearby groups of galaxies to investigate the hot gas content of their member galaxies. We find that a large fraction of near-IR bright, early-type…