1.3k citations · 9.8k across the 161 of their papers we have counts for
7 papers · 1 filter
The Stellar Mass Fundamental Plane and Compact Quiescent Galaxies at z < 0.6
H. Jabran Zahid, Ivana Damjanov, Margaret J. Geller +2
We examine the evolution of the relation between stellar mass surface density, velocity dispersion and half-light radiusthe stellar mass fundamental planefor quiescent galaxi…
The Environment of Massive Quiescent Compact Galaxies at in the COSMOS Field
Ivana Damjanov, H. Jabran Zahid, Margaret J. Geller +1
We use Hectospec mounted on the 6.5-meter MMT to carry out a redshift survey of red (, , ) galaxies in the COSMOS field to measure the environments of mas…
HeCS-SZ: The Hectospec Survey of Sunyaev-Zeldovich Selected Clusters
Kenneth J. Rines, Margaret J. Geller, Antonaldo Diaferio +1
We estimate cluster masses and velocity dispersions for 123 clusters from optical spectroscopy to compare the Sunyaev-Zeldovich (SZ) mass proxy and dynamical masses. Our new survey…
A rise in the ionizing photons in star-forming galaxies over the past 5 billion years
Lisa J. Kewley, H. Jabran Zahid, Margaret J. Geller +3
We investigate the change in ionizing photons in galaxies between 0.2<z<0.6 using the F2 field of the SHELS complete galaxy redshift survey. We show, for the first time, that while…
Schwarzschild Lecture 2014: HectoMAPping The Universe
Margaret J. Geller, Ho Seong Hwang
During the last three decades progress in mapping the universe from an age of 400,000 years to the present has been stunning. Instrument/telescope combinations have naturally deter…
Satellite content and quenching of star formation in galaxy groups at z~1.8
R. Gobat, E. Daddi, M. Béthermin +13
We study the properties of satellites in the environment of massive star-forming galaxies at z~1.8 in the COSMOS field, using a sample of 215 galaxies on the main sequence of star…