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A Spectroscopic Survey of the Fields of 28 Strong Gravitational Lenses: The Redshift Catalog
Ivelina Momcheva, Kurtis A. Williams, Richard J. Cool +2
We present the spectroscopic redshift catalog from a wide-field survey of the fields of 28 galaxy-mass strong gravitational lenses. We discuss the acquisition and reduction of the…
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…
Exploring the chemical link between local ellipticals and their high-redshift progenitors
Joel Leja, Pieter G. van Dokkum, Ivelina Momcheva +12
We present Keck/MOSFIRE K-band spectroscopy of the first mass-selected sample of galaxies at . Targets are selected from the 3D-HST Treasury survey. The six detected gala…
Confirmation of Small Dynamical and Stellar Masses for Extreme Emission Line Galaxies at z~2
Michael V. Maseda, Arjen van der Wel, Elisabete da Cunha +21
Spectroscopic observations from the Large Binocular Telescope and the Very Large Telescope reveal kinematically narrow lines (~50 km/s) for a sample of 14 Extreme Emission Line Gal…
A CANDELS - 3D-HST Synergy: Resolved Star Formation Patterns at 0.7 < z < 1.5
Stijn Wuyts, Natascha M. Forster Schreiber, Erica J. Nelson +20
We analyze the resolved stellar populations of 473 massive star-forming galaxies at 0.7 < z < 1.5, with multi-wavelength broad-band imaging from CANDELS and Halpha surface brightne…
Direct measurements of dust attenuation in z~1.5 star-forming galaxies from 3D-HST: Implications for dust geometry and star formation rates
Sedona H. Price, Mariska Kriek, Gabriel B. Brammer +11
The nature of dust in distant galaxies is not well understood, and until recently few direct dust measurements have been possible. We investigate dust in distant star-forming galax…
The Most Luminous z~9-10 Galaxy Candidates yet Found: The Luminosity Function, Cosmic Star-Formation Rate, and the First Mass Density Estimate at 500 Myr
P. A. Oesch, R. J. Bouwens, G. D. Illingworth +14
[abridged] We present the discovery of four surprisingly bright (H_160 ~ 26 - 27 mag AB) galaxy candidates at z~9-10 in the complete HST CANDELS WFC3/IR GOODS-N imaging data, doubl…
How dead are dead galaxies? Mid-Infrared fluxes of quiescent galaxies at redshift 0.3 < z < 2.5: implications for star formation rates and dust heating
Mattia Fumagalli, Ivo Labbe, Shannon G. Patel +17
We investigate the star formation rates of quiescent galaxies at high redshift (0.3 < z < 2.5) using 3D-HST WFC3 grism spectroscopy and Spitzer mid-infrared data. We select quiesce…
Quiescent Galaxies in the 3D-HST Survey: Spectroscopic Confirmation of a Large Number of Galaxies with Relatively Old Stellar Populations at z~2
Katherine E. Whitaker, Pieter G. van Dokkum, Gabriel Brammer +10
Quiescent galaxies at z~2 have been identified in large numbers based on rest-frame colors, but only a small number of these galaxies have been spectroscopically confirmed to show…
3D-HST Data Release v3.0: Extremely Deep Spectra in the UDF and WFC3 Mosaics in the 3D-HST/CANDELS Fields
Pieter van Dokkum, Gabriel Brammer, Ivelina Momcheva +2
3D-HST is a 248-orbit Treasury program to provide WFC3 and ACS grism spectroscopy over four extra-galactic fields (AEGIS, COSMOS, GOODS-South, and UDS), augmented with previously o…
The Structural Evolution of Milky Way-like Star Forming Galaxies since z~1.3
Shannon G. Patel, Mattia Fumagalli, Marijn Franx +14
We follow the structural evolution of star forming galaxies (SFGs) like the Milky Way by selecting progenitors to z~1.3 based on the stellar mass growth inferred from the evolution…
The Assembly of Milky Way-like Galaxies Since z~2.5
Pieter G. van Dokkum, Joel Leja, Erica June Nelson +16
Galaxies with the mass of the Milky Way dominate the stellar mass density of the Universe but it is uncertain how and when they were assembled. Here we study progenitors of these g…
The Spatial Extent and Distribution of Star Formation in 3D-HST Mergers at z~1.5
Kasper B. Schmidt, Hans-Walter Rix, Elisabete da Cunha +14
We present an analysis of the spatial distribution of star formation in a sample of 60 visually identified galaxy merger candidates at z>1. Our sample, drawn from the 3D-HST survey…
A Tentative Detection of an Emission Line at 1.6 μm for the z~12 Candidate UDFj-39546284
Gabriel B. Brammer, Pieter G. van Dokkum, Garth D. Illingworth +5
We present deep WFC3 grism observations of the candidate z~12 galaxy UDFj-39546284 in the HST Ultra Deep Field (UDF), by combining spectroscopic data from the 3D-HST and CANDELS su…
The Radial Distribution of Star Formation in Galaxies at z~1 from the 3D-HST Survey
Erica June Nelson, Pieter van Dokkum, Ivelina Momcheva +16
The assembly of galaxies can be described by the distribution of their star formation as a function of cosmic time. Thanks to the WFC3 grism on HST it is now possible to measure th…
Large-Scale Star Formation-Driven Outflows at 1<z<2 in the 3D-HST Survey
Britt F. Lundgren, Gabriel Brammer, Pieter van Dokkum +18
We present evidence of large-scale outflows from three low-mass (log(M/M_sun)~9.75) star-forming (SFR >4 M_sun/yr) galaxies observed at z=1.24, z=1.35 and z=1.75 in the 3D-HST Surv…
Nebular Attenuation in Hα-selected Star-forming Galaxies at z=0.8 from the NewHα Survey
Ivelina Momcheva, Janice C. Lee, Chun Ly +5
We present measurements of the dust attenuation of Hα-selected emission-line galaxies at z=0.8 from the NewHα narrowband survey. The analysis is based on deep follow-up spectroscop…
3D-HST Grism Spectroscopy of a Gravitationally Lensed, Low-metallicity Starburst Galaxy at z=1.847
Gabriel B. Brammer, Ruben Sanchez-Janssen, Ivo Labbe +17
We present Hubble Space Telescope (HST) imaging and spectroscopy of the gravitational lens SL2SJ02176-0513, a cusp arc at z=1.847. The UV continuum of the lensed galaxy is very blu…
Halpha Equivalent Widths from the 3D-HST survey: evolution with redshift and dependence on stellar mass
Mattia Fumagalli, Shannon G. Patel, Marijn Franx +12
We investigate the evolution of the Halpha equivalent width, EW(Halpha), with redshift and its dependence on stellar mass, taking advantage of the first data from the 3D-HST survey…
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…
A Tale of Dwarfs and Giants: Using a z=1.62 Cluster to Understand How the Red Sequence Grew Over The Last 9.5 Billion Years
Gregory H. Rudnick, Kim-Vy Tran, Casey Papovich +2
We study the red sequence in a cluster of galaxies at z=1.62 and follow its evolution over the intervening 9.5 Gyr to the present day. Using deep YJKs imaging with the HAWK-I instr…
Caught in the Act: The Assembly of Massive Cluster Galaxies at z=1.62
J. M. Lotz, C. Papovich, S. M. Faber +13
We present the recent merger history of massive galaxies in a spectroscopically-confirmed proto-cluster at z=1.62. Using HST WFC3 near-infrared imaging from the Cosmic Assembly Nea…
CANDELS Observations of the Structural Properties and Evolution of Galaxies in a Cluster at z=1.62
Casey Papovich, R. Bassett, J. M. Lotz +25
We discuss the structural and morphological properties of galaxies in a z=1.62 proto-cluster using near-IR imaging data from Hubble Space Telescope Wide Field Camera 3 data of the…
The Effect of Environment on Shear in Strong Gravitational Lenses
Kenneth C. Wong, Charles R. Keeton, Kurtis A. Williams +2
Using new photometric and spectroscopic data in the fields of nine strong gravitational lenses that lie in galaxy groups, we analyze the effects of both the local group environment…