output
19922026
most citedThe Sloan Digital Sky Survey: Technical Summary

10.4k citations

Showing 2017 · astro-ph.GAShow all

58 papers · 2 filters

astro-ph.GA2017★ 103 cited

A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces: I. Cloud-scale Gas Motions

Sharon E. Meidt, Adam K. Leroy, Erik Rosolowsky +10

Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs, 20-50 pc). Systematic variations in GMC properties with galaxy environ…

astro-ph.GA2017★ 131 cited

The origin of the diverse morphologies and kinematics of Milky Way-mass galaxies in the FIRE-2 simulations

Shea Garrison-Kimmel, Philip F. Hopkins, Andrew Wetzel +11

We use hydrodynamic cosmological zoom-in simulations from the FIRE project to explore the morphologies and kinematics of fifteen Milky Way (MW)-mass galaxies. Our sample ranges fro…

astro-ph.GA2017★ 124 cited

Copious Amounts of Dust and Gas in a z=7.5 Quasar Host Galaxy

Bram Venemans, Fabian Walter, Roberto Decarli +10

We present IRAM/NOEMA and JVLA observations of the quasar J1342+0928 at z=7.54 and report detections of copious amounts of dust and [CII] emission in the interstellar medium (ISM)…

astro-ph.GA2017★ 114 cited

Clumpy Galaxies in CANDELS. II. Physical Properties of UV-bright Clumps at

Yicheng Guo, Marc Rafelski, Eric F. Bell +20

Studying giant star-forming clumps in distant galaxies is important to understand galaxy formation and evolution. At present, however, observers and theorists have not reached a co…

astro-ph.GA2017★ 61 cited

Reconciling observed and simulated stellar halo masses

Robyn E. Sanderson, Shea Garrison-Kimmel, Andrew Wetzel +6

We use cosmological hydrodynamical simulations of Milky-Way-mass galaxies from the FIRE project to evaluate various strategies for estimating the mass of a galaxy's stellar halo fr…

astro-ph.GA2017★ 33 cited

Group quenching and galactic conformity at low redshift

M. Treyer, K. Kraljic, S. Arnouts +13

We quantify the quenching impact of the group environment using the spectroscopic survey Galaxy and Mass Assembly (GAMA) to z=0.2. The fraction of red (quiescent) galaxies, whether…

astro-ph.GA2017★ 63 cited

Modeling the Impact of Baryons on Subhalo Populations with Machine Learning

Ethan O. Nadler, Yao-Yuan Mao, Risa H. Wechsler +2

We identify subhalos in dark matter-only (DMO) zoom-in simulations that are likely to be disrupted due to baryonic effects by using a random forest classifier trained on two hydrod…

astro-ph.GA2017★ 23 cited

The ALMA Frontier Fields Survey - IV. Lensing-corrected 1.1 mm number counts in Abell 2744, MACSJ0416.1-2403 and MACSJ1149.5+2223

A. M. Muñoz Arancibia, J. González-López, E. Ibar +15

[abridged] Characterizing the number counts of faint, dusty star-forming galaxies is currently a challenge even for deep, high-resolution observations in the FIR-to-mm regime. They…

astro-ph.GA2017★ 12 cited

Selecting ultra-faint dwarf candidate progenitors in cosmological N-body simulations at high redshifts

Mohammadtaher Safarzadeh, Alexander P. Ji, Gregory A. Dooley +4

The smallest satellites of the Milky Way ceased forming stars during the epoch of reionization and thus provide archaeological access to galaxy formation at . Numerical studie…

astro-ph.GA2017★ 1.1k cited

An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5

E. Bañados, B. P. Venemans, C. Mazzucchelli +15

Quasars are the most luminous non-transient objects known and as a result they enable studies of the Universe at the earliest cosmic epochs. Despite extensive efforts, however, the…

astro-ph.GA2017★ 86 cited

The extent of chemically enriched gas around star-forming dwarf galaxies

Sean D. Johnson, Hsiao-Wen Chen, John S. Mulchaey +2

Supernova driven winds are often invoked to remove chemically enriched gas from dwarf galaxies to match their low observed metallicities. In such shallow potential wells, outflows…

astro-ph.GA2017★ 20 cited

SMHASH: Anatomy of the Orphan Stream using RR Lyrae stars

David Hendel, Victoria Scowcroft, Kathryn V. Johnston +30

Stellar tidal streams provide an opportunity to study the motion and structure of the disrupting galaxy as well as the gravitational potential of its host. Streams around the Milky…

astro-ph.GA2017★ 35 cited

Global Properties of M31's Stellar Halo from the SPLASH Survey: III. Measuring the Stellar Velocity Dispersion Profile

Karoline M. Gilbert, Erik Tollerud, Rachael L. Beaton +7

We present the velocity dispersion of red giant branch (RGB) stars in M31's halo, derived by modeling the line of sight velocity distribution of over 5000 stars in 50 fields spread…

astro-ph.GA2017★ 184 cited

The origin of ultra diffuse galaxies: stellar feedback and quenching

T. K. Chan, D. Kereš, A. Wetzel +5

We test if the cosmological zoom-in simulations of isolated galaxies from the FIRE project reproduce the properties of ultra diffuse galaxies. We show that stellar feedback-generat…

astro-ph.GA2017★ 33 cited

Crowded Field Galaxy Photometry: Precision Colors in the CLASH Clusters

Thomas Connor, Megan Donahue, Daniel D. Kelson +8

We present a new method for photometering objects in galaxy clusters. We introduce a mode-filtering technique for removing spatially variable backgrounds, improving both detection…

astro-ph.GA2017★ 103 cited

Lost but not Forgotten: Intracluster Light in Galaxy Groups and Clusters

Tahlia DeMaio, Anthony H. Gonzalez, Ann Zabludoff +4

With Hubble Space Telescope imaging, we investigate the progenitor population and formation mechanisms of the intracluster light (ICL) for 23 galaxy groups and clusters ranging fro…

astro-ph.GA2017★ 61 cited

The Magellan Evolution of Galaxies Spectroscopic and Ultraviolet Reference Atlas (MEGaSaURA) I: The Sample and the Spectra

J. R. Rigby, M. B. Bayliss, K. Sharon +7

We introduce Project MEGaSaURA: The Magellan Evolution of Galaxies Spectroscopic and Ultraviolet Reference Atlas. MEGaSaURA comprises medium-resolution, rest-frame ultraviolet spec…

astro-ph.GA2017★ 67 cited

The Old Host-Galaxy Environment of SSS17a, the First Electromagnetic Counterpart to a Gravitational Wave Source

Y. -C. Pan, C. D. Kilpatrick, J. D. Simon +16

We present an analysis of the host-galaxy environment of Swope Supernova Survey 2017a (SSS17a), the discovery of an electromagnetic counterpart to a gravitational wave source, GW17…

astro-ph.GA2017★ 170 cited

Modelling chemical abundance distributions for dwarf galaxies in the Local Group: the impact of turbulent metal diffusion

Ivanna Escala, Andrew Wetzel, Evan N. Kirby +6

We investigate stellar metallicity distribution functions (MDFs), including Fe and -element abundances, in dwarf galaxies from the Feedback in Realistic Environments (FIRE) proj…

astro-ph.GA2017★ 61 cited

Mapping the Lyman-Alpha Emission Around a z~6.6 QSO with MUSE: Extended Emission and a Companion at Close Separation

Emanuele P. Farina, Bram P. Venemans, Roberto Decarli +7

We utilize the Multi Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope (VLT) to search for extended Lyman-Alpha emission around the z~6.6 QSO J0305-3150. After careful…

astro-ph.GA2017★ 293 cited

Target Selection for the SDSS-IV APOGEE-2 Survey

G. Zasowski, R. E. Cohen, S. D. Chojnowski +34

APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing roughly 300,000 stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digi…

astro-ph.GA2017★ 9 cited

HST Detection of Extended Neutral Hydrogen in a Massive Elliptical at z = 0.4

Fakhri S. Zahedy, Hsiao-Wen Chen, Michael Rauch +1

We report the first detection of extended neutral hydrogen (HI) gas in the interstellar medium (ISM) of a massive elliptical galaxy beyond z~0. The observations utilize the doubly…

astro-ph.GA2017★ 28 cited

A Magellan M2FS Spectroscopic Survey of Galaxies at 5.5<z<6.8: Program Overview and a Sample of the Brightest Lyman-alpha Emitters

Linhua Jiang, Yue Shen, Fuyan Bian +16

We present a spectroscopic survey of high-redshift, luminous galaxies over four square degrees on the sky, aiming to build a large and homogeneous sample of Ly emitters (LAEs) a…

astro-ph.GA2017★ 81 cited

NGC 1866: First Spectroscopic Detection of Fast Rotating Stars in a Young LMC Cluster

A. K. Dupree, A. Dotter, C. I. Johnson +6

High-resolution spectroscopic observations were taken of 29 extended main sequence turn-off (eMSTO) stars in the young (200 Myr) LMC cluster, NGC 1866 using the Michigan/Mage…