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Observations of environmental quenching in groups in the 11 Gyr since z=2.5: different quenching for central and satellite galaxies
Tomer Tal, Avishai Dekel, Pascal Oesch +16
We present direct observational evidence for star formation quenching in galaxy groups in the redshift range 0<z<2.5. We utilize a large sample of nearly 6000 groups, selected by f…
CANDELS+3D-HST: compact SFGs at z~2-3, the progenitors of the first quiescent galaxies
G. Barro, S. M. Faber, P. G. Perez-Gonzalez +32
We analyze the star-forming and structural properties of 45 massive (log(M/Msun)>10) compact star-forming galaxies (SFGs) at 2<z<3 to explore whether they are progenitors of compac…
Galaxy environments over cosmic time: the non-evolving radial galaxy distributions around massive galaxies since z=1.6
Tomer Tal, Pieter G. van Dokkum, Marijn Franx +3
We present a statistical study of the environments of massive galaxies in four redshift bins between z=0.04 and z=1.6, using data from the Sloan Digital Sky Survey (SDSS) and the N…
The Baryon Oscillation Spectroscopic Survey of SDSS-III
Kyle S. Dawson, David J. Schlegel, Christopher P. Ahn +162
The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the…
3D-HST: A wide-field grism spectroscopic survey with the Hubble Space Telescope
Gabriel Brammer, Pieter van Dokkum, Marijn Franx +27
We present 3D-HST, a near-infrared spectroscopic Treasury program with the Hubble Space Telescope for studying the processes that shape galaxies in the distant Universe. 3D-HST pro…
Observations of dark and luminous matter: the radial distribution of satellite galaxies around massive red galaxies
Tomer Tal, David A. Wake, Pieter G. van Dokkum
We study the projected radial distribution of satellite galaxies around more than 28,000 Luminous Red Galaxies (LRGs) at 0.28<z<0.40 and trace the gravitational potential of LRG gr…
First Results from the 3D-HST Survey: The Striking Diversity of Massive Galaxies at z>1
Pieter G. van Dokkum, Gabriel Brammer, Mattia Fumagalli +26
We present first results from the 3D-HST program, a near-IR spectroscopic survey performed with the Wide Field Camera 3 on the Hubble Space Telescope. We have used 3D-HST spectra t…
Mass growth and mergers: direct observations of the luminosity function of LRG satellite galaxies out to z=0.7 from SDSS and BOSS images
Tomer Tal, David A. Wake, Pieter G. van Dokkum +4
We present a statistical study of the luminosity functions of galaxies surrounding luminous red galaxies (LRGs) at average redshifts <z>=0.34 and <z>=0.65. The luminosity functions…
The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts and the Bimodal Color Distribution of Galaxies out to z~3
Katherine E. Whitaker, Ivo Labbe, Pieter G. van Dokkum +15
We present deep near-infrared (NIR) medium-bandwidth photometry over the wavelength range 1-1.8 microns in the All-wavelength Extended Groth strip International Survey (AEGIS) and…
The faint stellar halos of massive red galaxies from stacks of more than 42000 SDSS LRG images
Tomer Tal, Pieter van Dokkum
We study the properties of massive galaxies at an average redshift of z~0.34 through stacking more than 42000 images of Luminous Red Galaxies from the Sloan Digital Sky Survey. Thi…
The Growth of Massive Galaxies Since z=2
Pieter G. van Dokkum, Katherine E. Whitaker, Gabriel Brammer +11
We study the growth of massive galaxies from z=2 to the present using data from the NEWFIRM Medium Band Survey. The sample is selected at a constant number density of n=2x10^-4 Mpc…
Searching for a Gravitational Heating Signature in Nearby Luminous Ellipticals
Tomer Tal, Pieter G. van Dokkum, Jeffrey D. P. Kenney
We present a new deep optical study of a luminosity limited sample of nearby elliptical galaxies, attempting to observe the effects of gravitational interactions on the ISM of thes…
The Frequency of Tidal Features Associated with Nearby Luminous Elliptical Galaxies from a Statistically Complete Sample
Tomer Tal, Pieter G. van Dokkum, Jenica Nelan +1
We present a deep broadband optical imaging study of a complete sample of luminous elliptical galaxies (M_B<-20) at distances 15 Mpc - 50 Mpc, selected from the Tully catalog of ne…