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A Large Population of Massive Compact Post-Starburst Galaxies at z>1: Implications for the Size Evolution and Quenching Mechanism of Quiescent Galaxies
Katherine E. Whitaker, Mariska Kriek, Pieter G. van Dokkum +4
We study the growth of the red sequence through the number density and structural evolution of a sample of young and old quiescent galaxies at 0<z<2. The galaxies are selected from…
The Rest Frame UV to Optical Colors and SEDs of z~4-7 Galaxies
Valentino Gonzalez, Rychard Bouwens, Ivo Labbe +4
We use the ultra-deep HUDF09 and the deep ERS data from the HST WFC3/IR camera, along with the wide area Spitzer/IRAC data from GOODS-S to derive SEDs of star-forming galaxies from…
Confirmation of One of the Coldest Known Brown Dwarfs
K. L. Luhman, A. J. Burgasser, I. Labbe +5
Using two epochs of 4.5um images from the Infrared Array Camera (IRAC) on board the Spitzer Space Telescope, we recently identified a common proper motion companion to the white dw…
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…
Morphological evolution of galaxies from ultradeep HST WFC3 imaging: the Hubble sequence at z~2
Daniel Szomoru, Marijn Franx, Rychard J. Bouwens +4
We use ultradeep HST WFC3/IR imaging of the HUDF to investigate the rest-frame optical morphologies of a mass-selected sample of galaxies at z~2. We find a large variety of galaxy…
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…