output
19932026
most citedThe Seventh Data Release of the Sloan Digital Sky Survey

5.4k citations

Showing 2014 · astro-ph.GAShow all

21 papers · 2 filters

astro-ph.GA2014★ 7 cited

Probing the circumgalactic medium of active galactic nuclei with background quasars

Glenn G. Kacprzak, Christopher W. Churchill, Michael T. Murphy +1

We performed a detailed study of the extended cool gas, traced by MgII absorption [~Å], surrounding 14 narrow-line active galactic nuclei (AGNs) at 0.12<z<0.22 us…

astro-ph.GA2014★ 37 cited

Investigating Disk-Halo Flows and Accretion: A Kinematic and Morphological Analysis of Extraplanar HI in NGC 3044 and NGC 4302

Laura K. Zschaechner, Richard J. Rand, Rene A. M. Walterbos

To further understand the origins of and physical processes operating in extra-planar gas, we present observations and kinematic models of HI in the two nearby, edge-on spiral gala…

astro-ph.GA2014★ 229 cited

Legacy ExtraGalactic UV Survey (LEGUS) with The Hubble Space Telescope. I. Survey Description

D. Calzetti, J. C. Lee, E. Sabbi +46

The Legacy ExtraGalactic UV Survey (LEGUS) is a Cycle 21 Treasury program on the Hubble Space Telescope, aimed at the investigation of star formation and its relation with galactic…

astro-ph.GA2014★ 209 cited

Tracing chemical evolution over the extent of the Milky Way's Disk with APOGEE Red Clump Stars

David L. Nidever, Jo Bovy, Jonathan C. Bird +40

We employ the first two years of data from the near-infrared, high-resolution SDSS-III/APOGEE spectroscopic survey to investigate the distribution of metallicity and alpha-element…

astro-ph.GA2014★ 58 cited

Direct Insights into Observational Absorption Line Analysis Methods of the Circumgalactic Medium Using Cosmological Simulations

Christopher W. Churchill, Jacob R. Vander Vliet, Sebastian Trujillo-Gomez +2

We study the circumgalactic medium (CGM) of a z=0.54 simulated dwarf galaxy using hydroART simulations. We present our analysis methods, which emulate observations, including objec…

astro-ph.GA2014★ 84 cited

HST Imaging of Fading AGN Candidates I: Host-Galaxy Properties and Origin of the Extended Gas

William C. Keel, W. Peter Maksym, Vardha N. Bennert +11

We present narrow- and medium-band HST imaging, with additional supporting ground-based data, for 8 galaxies identified as hosting fading AGN. These have AGN-ionized gas projected…