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First Results from Z-FOURGE: Discovery of a Candidate Cluster at z = 2.2 in COSMOS
Lee R. Spitler, Ivo Labbé, Karl Glazebrook +13
We report the first results from the Z-FOURGE survey: the discovery of a candidate galaxy cluster at z = 2.2 consisting of two compact overdensities with red galaxies detected at >…
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…
Redshift Evolution of the Galaxy Velocity Dispersion Function
Rachel Bezanson, Pieter G. van Dokkum, Marijn Franx +9
We present a study of the evolution of the galaxy Velocity Dispersion Function (VDF) from z=0 to z=1.5 using photometric data from the UKIDSS Ultra Deep Survey (UDS) and Newfirm Me…
The diminishing importance of major galaxy mergers at higher redshifts
Rik J. Williams, Ryan F. Quadri, Marijn Franx
Using mass-selected galaxy samples from deep multiwavelength data we investigate the incidence of close galaxy pairs between z=0.4-2. Many such close pairs will eventually merge, a…
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 number density and mass density of star-forming and quiescent galaxies at 0.4 < z < 2.2
Gabriel B. Brammer, Katherine E. Whitaker, Pieter G. van Dokkum +9
We study the build-up of the bimodal galaxy population using the NEWFIRM Medium-Band Survey, which provides excellent redshifts and well-sampled spectral energy distributions of ~2…