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19912026
Showing 2016 · astro-ph.GAShow all

67 papers · 2 filters

astro-ph.GA2016★ 2 cited

Detection of quasars in the time domain

Matthew J. Graham, S. G. Djorgovski, Daniel J. Stern +2

The time domain is the emerging forefront of astronomical research with new facilities and instruments providing unprecedented amounts of data on the temporal behavior of astrophys…

astro-ph.GA2016★ 68 cited

Constraints On The Dynamical Environments Of Supermassive Black-hole Binaries Using Pulsar-timing Arrays

Stephen R. Taylor, Joseph Simon, Laura Sampson

We introduce a technique for gravitational-wave analysis, where Gaussian process regression is used to emulate the strain spectrum of a stochastic background using population-synth…

astro-ph.GA2016★ 28 cited

Thermodynamics and Charging of Interstellar Iron Nanoparticles

Brandon S. Hensley, B. T. Draine

Interstellar iron in the form of metallic iron nanoparticles may constitute a component of the interstellar dust. We compute the stability of iron nanoparticles to sublimation in t…

astro-ph.GA2016★ 76 cited

Modeling the Anomalous Microwave Emission with Spinning Nanoparticles: No PAHs Required

Brandon S. Hensley, B. T. Draine

In light of recent observational results indicating an apparent lack of correlation between the Anomalous Microwave Emission (AME) and mid-infrared emission from polycyclic aromati…

astro-ph.GA2016★ 104 cited

Space Telescope and Optical Reverberation Mapping Project VI: reverberating Disk Models for NGC 5548

D. Starkey, Keith Horne, M. M. Fausnaugh +90

We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continu…

astro-ph.GA2016★ 28 cited

A Study of Quasar Selection in the Dark Energy Survey Supernova fields

S. S. Tie, P. Martini, D. Mudd +75

We present a study of quasar selection using the DES supernova fields. We used a quasar catalog from an overlapping portion of the SDSS Stripe 82 region to quantify the completenes…

astro-ph.GA2016★ 34 cited

THE NEXT GENERATION VIRGO CLUSTER SURVEY. XIV. Shell feature early-type dwarf galaxies in the Virgo cluster

Sanjaya Paudel, Rory Smith, Pierre-Alain Duc +15

The Next Generation Virgo Cluster Survey is a deep (with a detection limit = 29~mag~arcsec in the band) optical panchromatic survey targeting the Virgo cluste…

astro-ph.GA2016★ 134 cited

The Galactic Center Molecular Cloud Survey. I. A Steep Linewidth-Size Relation & Suppression of Star Formation

Jens Kauffmann, Thushara Pillai, Qizhou Zhang +4

The Central Molecular Zone (CMZ; inner ) of the Milky Way is a star formation (SF) environment with very extreme physical properties. Exploration of SF in this r…

astro-ph.GA2016★ 12 cited

Investigating overdensities around z>6 galaxies through ALMA observations of [CII]

Tim B. Miller, Scott C. Chapman, Christopher C. Hayward +4

We present a search for companion [CII] emitters to known luminous sources at z in deep, archival ALMA observations. The observations are deep enough to detect sources…

astro-ph.GA2016★ 160 cited

Farthest Neighbor: The Distant Milky Way Satellite Eridanus II

T. S. Li, J. D. Simon, A. Drlica-Wagner +56

We present Magellan/IMACS spectroscopy of the recently-discovered Milky Way satellite Eridanus II (Eri II). We identify 28 member stars in Eri II, from which we measure a systemic…

astro-ph.GA2016★ 15 cited

A minimal empirical model for the cosmic far-infrared background anisotropies

Hao-Yi Wu, Olivier Doré

Cosmic far-infrared background (CFIRB) probes unresolved dusty star-forming galaxies across cosmic time and is complementary to ultraviolet and optical observations of galaxy evolu…

astro-ph.GA2016★ 15 cited

The Most Massive Active Galactic Nuclei at

Hyunsung D. Jun, Myungshin Im, Dohyeong Kim +1

We obtained near-infrared spectra of 26 SDSS quasars at with reported rest-frame ultraviolet to critically examine the systematic eff…

astro-ph.GA2016★ 44 cited

Modelling and simulation of large-scale polarized dust emission over the southern Galactic cap using the GASS HI data

Tuhin Ghosh, Francois Boulanger, Peter G. Martin +8

The Planck survey has quantified polarized Galactic foregrounds and established that they are a main limiting factor in the quest for the cosmic microwave background (CMB) B-mode s…

astro-ph.GA2016★ 45 cited

The Next Generation Virgo Cluster Survey (NGVS). XXIV. The Red Sequence to 10 L and Comparisons with Galaxy Formation Models

Joel C. Roediger, Laura Ferrarese, Patrick Côté +22

We use deep optical photometry from the Next Generation Virgo Cluster Survey [NGVS] to investigate the color-magnitude diagram for the galaxies inhabiting the core of this cluster.…

astro-ph.GA2016★ 28 cited

IC 3639 - A new bona fide Compton thick AGN unveiled by NuSTAR

Peter G. Boorman, P. Gandhi, D. Alexander +19

We analyse high-quality NuSTAR observations of the local (z = 0.011) Seyfert 2 active galactic nucleus (AGN) IC 3639, in conjunction with archival Suzaku and Chandra data. This pro…

astro-ph.GA2016★ 17 cited

The Magnetic Field of L1544: I. Near-Infrared Polarimetry and the Non-Uniform Envelope

Dan P. Clemens, K. Tassis, Paul F. Goldsmith

The magnetic field (B-field) of the starless dark cloud L1544 has been studied using near-infrared (NIR) background starlight polarimetry (BSP) and archival data in order to charac…

astro-ph.GA2016★ 115 cited

Nearest Neighbor: The Low-Mass Milky Way Satellite Tucana III

J. D. Simon, T. S. Li, A. Drlica-Wagner +56

We present Magellan/IMACS spectroscopy of the recently discovered Milky Way satellite Tucana III (Tuc III). We identify 26 member stars in Tuc III, from which we measure a mean rad…

astro-ph.GA2016★ 346 cited

Spiral Density Waves in a Young Protoplanetary Disk

Laura M. Pérez, John M. Carpenter, Sean M. Andrews +20

Gravitational forces are expected to excite spiral density waves in protoplanetary disks, disks of gas and dust orbiting young stars. However, previous observations that showed spi…

astro-ph.GA2016★ 27 cited

The Evolution of Star Formation Activity in Cluster Galaxies Over

Cory R. Wagner, Stephane Courteau, Mark Brodwin +3

We explore 7.5 billion years of evolution in the star formation activity of massive () cluster galaxies using a sample of 25 clusters over $0.15<z<1…

astro-ph.GA2016★ 28 cited

Constraining the ISM properties of the Cloverleaf quasar host galaxy with Herschel spectroscopy

Bade D. Uzgil, C. Matt Bradford, Steve Hailey-Dunsheath +2

We present Herschel observations of far-infrared (FIR) fine-structure (FS) lines [CII]158m, [OI]63m, [OIII]52m, and [SiII]35m in the z=2.56 Cloverleaf quasar, and combi…

astro-ph.GA2016★ 56 cited

A Foreground Masking Strategy for [CII] Intensity Mapping Experiments Using Galaxies Selected by Stellar Mass and Redshift

Guochao Sun, Lorenzo Moncelsi, Marco P. Viero +11

Intensity mapping provides a unique means to probe the epoch of reionization (EoR), when the neutral intergalactic medium was ionized by the energetic photons emitted from the firs…

astro-ph.GA2016★ 52 cited

Intensity mapping of H-alpha, H-beta, [OII] and [OIII] lines at z<5

Yan Gong, Asantha Cooray, Marta B. Silva +5

Intensity mapping is now becoming a useful tool to study the large-scale structure of the universe through spatial variations in the integrated emission from galaxies and the inter…

astro-ph.GA2016★ 4 cited

A Galaxy-Halo Model for Multiple Cosmological Tracers

Philip Bull

The information extracted from large galaxy surveys with the likes of DES, DESI, Euclid, LSST, SKA, and WFIRST will be greatly enhanced if the resultant galaxy catalogues can be cr…

astro-ph.GA2016★ 52 cited

The Galactic Center Molecular Cloud Survey. II. A Lack of Dense Gas & Cloud Evolution along Galactic Center Orbits

Jens Kauffmann, Thushara Pillai, Qizhou Zhang +5

We present the first systematic study of the density structure of clouds found in a complete sample covering all major molecular clouds in the Central Molecular Zone (CMZ; inner $\…