output
19922026
Showing 2018 · astro-ph.GAShow all

111 papers · 2 filters

astro-ph.GA2018★ 1 cited

A catalog of X-ray point sources in the Abell 133 region

Jaejin Shin, Richard. M. Plotkin, Jong-Hak Woo +2

As an evolutionary phase of galaxies, active galactic nuclei (AGN) over a large range of redshift have been utilized for understanding cosmic evolution. In particular, the populati…

astro-ph.GA2018★ 16 cited

Halo concentrations from extended Press-Schechter merger histories

Andrew J. Benson, Aaron Ludlow, Shaun Cole

We apply the model relating halo concentration to formation history proposed by Ludlow et al. to merger trees generated using an algorithm based on excursion set theory. We find th…

astro-ph.GA2018★ 13 cited

Evidence for shock-heated gas in the Taffy Galaxies and Bridge from Optical Emission-Line IFU spectroscopy

Bhavin A. Joshi, Philip N. Appleton, Guillermo A. Blanc +7

We present optical IFU observations of the Taffy system (UGC 12914/15); named for the radio emission that stretches between the two galaxies. Given that these gas rich galaxies are…

astro-ph.GA2018★ 75 cited

Massive Dead Galaxies at z~2 with HST Grism Spectroscopy I. Star Formation Histories and Metallicity Enrichment

T. Morishita, L. E. Abramson, T. Treu +7

Observations have revealed massive (logM*/Msun>11) galaxies that were already dead when the universe was only ~2 Gyr. Given the short time before these galaxies were quenched, thei…

astro-ph.GA2018★ 61 cited

No evidence for enhanced [OIII] 88um emission in a z~6 quasar compared to its companion starbursting galaxy

Fabian Walter, Dominik Riechers, Mladen Novak +14

We present ALMA band 8 observations of the [OIII] 88um line and the underlying thermal infrared continuum emission in the z=6.08 quasar CFHQS J2100-1715 and its dust-obscured starb…

astro-ph.GA2018★ 126 cited

Exploring Reionization-Era Quasars IV: Discovery of Six New Quasars with DES, VHS and unWISE Photometry

Jinyi Yang, Feige Wang, Xiaohui Fan +7

This is the fourth paper in a series of publications aiming at discovering quasars at the epoch of reionization. In this paper, we expand our search for quasars to the fo…