Showing 2015 · astro-ph.GAShow all

44 papers · 2 filters

astro-ph.GA2015★ 43 cited

The Effects of Grain Size and Temperature Distributions on the Formation of Interstellar Ice Mantles

Tyler Pauly, Robin T. Garrod

Computational models of interstellar gas-grain chemistry have historically adopted a single dust-grain size of 0.1 micron, assumed to be representative of the size distribution pre…

astro-ph.GA2015★ 15 cited

Velocity resolved [CII] spectroscopy of the center and the BCLMP302 region of M33 (HerM33es)

B. Mookerjea, F. Israel, C. Kramer +8

We aim to understand the contribution of the ionized, atomic and molecular phases of the ISM to the [CII] emission from clouds near the dynamical center and the BCLMP302 HII region…

astro-ph.GA2015★ 9 cited

Multi-wavelength lens reconstruction of a -detected star-bursting galaxy

Nicholas Timmons, Asantha Cooray, Dominik A. Riechers +21

We present a source-plane reconstruction of a and -detected gravitationally-lensed dusty star-forming galaxy (DSFG) at using {\it Hubble}, S…

astro-ph.GA2015★ 47 cited

Leo P: How Many Metals can a Very Low-Mass, Isolated Galaxy Retain?

Kristen B. W. McQuinn, Evan D. Skillman, Andrew Dolphin +7

Leo P is a gas-rich dwarf galaxy with an extremely low gas-phase oxygen abundance (3% solar). The isolated nature of Leo P enables a quantitative measurement of metals lost solely…

astro-ph.GA2015★ 3 cited

Intermittent Self-Sustaining Star Formation in Low-Redshift Galaxies Exhibiting a Peak Metallicity Plateau

Martin Harwit

The decline of star formation in massive low-redshift galaxies, often referred to as quenching, has been attributed to a variety of factors. Some proposals suggest that erupting ac…

astro-ph.GA2015★ 29 cited

The Infrared Database of Extragalactic Observables from Spitzer I: the redshift catalog

Antonio Hernán-Caballero, Henrik W. W. Spoon, Vianney Lebouteiller +2

This is the first of a series of papers on the Infrared Database of Extragalactic Observables from Spitzer (IDEOS). In this work we describe the identification of optical counterpa…

astro-ph.GA2015★ 1 cited

Dusty Galaxies at the Highest Redshifts

David L Clements, Josh Greenslade, Dominik A. Riechers +5

We show that the use of red colour as the basis for selecting candidate high redshift dusty galaxies from surveys made with Herschel has proved highly successful. The highest redsh…

astro-ph.GA2015★ 36 cited

On the redshift distribution and physical properties of ACT-selected DSFGs

T. Su, T. A. Marriage, V. Asboth +25

We present multi-wavelength detections of nine candidate gravitationally-lensed dusty star-forming galaxies (DSFGs) selected at 218GHz (1.4mm) from the ACT equatorial survey. Among…

astro-ph.GA2015★ 4 cited

Next Generation Very Large Array Memo No. 8 Science Working Group 3: Galaxy Assembly through Cosmic Time

Caitlin M. Casey, Jacqueline A. Hodge, Mark Lacy +14

The Next-Generation Very Large Array (ngVLA) will be critical for understanding how galaxies are built and evolve at the earliest epochs. The sensitivity and frequency coverage wil…

astro-ph.GA2015★ 55 cited

Extragalactic HI Surveys

Riccardo Giovanelli, Martha P. Haynes

We review the results of HI line surveys of extragalactic sources in the local Universe. In the last two decades major efforts have been made in establishing on firm statistical gr…

astro-ph.GA2015

When is Stacking Confusing?: The Impact of Confusion on Stacking in Deep HI Galaxy Surveys

Michael G. Jones, Martha P. Haynes, Riccardo Giovanelli +1

We present an analytic model to predict the HI mass contributed by confused sources to a stacked spectrum in a generic HI survey. Based on the ALFALFA correlation function, this mo…

astro-ph.GA2015

CARMA CO Observations of Three Extremely Metal-Poor, Star-Forming Galaxies

Steven R. Warren, Edward Molter, John M. Cannon +11

We present sensitive CO (J = 1 - 0) emission line observations of three metal-poor dwarf irregular galaxies Leo P (Z ~ 3% Z_Solar), Sextans A (Z ~ 7.5% Z_Solar), and Sextans B (Z ~…

astro-ph.GA2015★ 50 cited

Environmental dependence of the HI mass function in the ALFALFA 70% catalogue

Michael G. Jones, Emmanouil Papastergis, Martha P. Haynes +1

We search for environmental dependence of the HI mass function in the ALFALFA 70% catalogue. The catalogue is split into quartiles of environment density based on the projected nei…

astro-ph.GA2015★ 45 cited

Evidence for the Thermal Sunyaev-Zel'dovich Effect Associated with Quasar Feedback

Devin Crichton, Megan B. Gralla, Kirsten Hall +20

Using a radio-quiet subsample of the Sloan Digital Sky Survey spectroscopic quasar catalogue, spanning redshifts 0.5-3.5, we derive the mean millimetre and far-infrared quasar spec…

astro-ph.GA2015★ 71 cited

The NANOGrav Nine-year Data Set: Astrometric Measurements of 37 Millisecond Pulsars

Allison M. Matthews, David J. Nice, Emmanuel Fonseca +18

Using the nine-year radio-pulsar timing data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), collected at Arecibo Observatory and the Green Ba…

astro-ph.GA2015★ 6 cited

Simultaneously modelling far-infrared dust emission and its relation to CO emission in star forming galaxies

Rahul Shetty, Julia Roman-Duval, Sacha Hony +6

We present a method to simultaneously model the dust far-infrared spectral energy distribution (SED) and the total infrared carbon monoxide (CO) integrated intensity $(S_{\rm I…

astro-ph.GA2015★ 59 cited

The JCMT Plane Survey: early results from the l = 30 degree field

T. J. T. Moore, R. Plume, M. A. Thompson +55

We present early results from the JCMT Plane Survey (JPS), which has surveyed the northern inner Galactic plane between longitudes l=7 and l=63 degrees in the 850-μm continuum with…

astro-ph.GA2015★ 32 cited

The Optical Luminosity Function of Void Galaxies in the SDSS and ALFALFA Surveys

Crystal M. Moorman, Michael S. Vogeley, Fiona Hoyle +3

We measure the r-band galaxy luminosity function (LF) across environments over the redshift range 0<<0.107 using the SDSS. We divide our sample into galaxies residing in large s…

astro-ph.GA2015★ 321 cited

The NANOGrav Nine-year Data Set: Limits on the Isotropic Stochastic Gravitational Wave Background

Zaven Arzoumanian, Adam Brazier, Sarah Burke-Spolaor +45

We compute upper limits on the nanohertz-frequency isotropic stochastic gravitational wave background (GWB) using the 9-year data release from the North American Nanohertz Observat…

astro-ph.GA2015★ 13 cited

Searching for Optical Counterparts to Ultra-compact High Velocity Clouds: Possible Detection of a Counterpart to AGC 198606

William Janesh, Katherine L. Rhode, John J. Salzer +6

We report on initial results from a campaign to obtain optical imaging of a sample of Ultra Compact High Velocity Clouds (UCHVCs) discovered by the ALFALFA neutral hydrogen (HI) su…

astro-ph.GA2015★ 10 cited

Numerical MHD Codes for Modeling Astrophysical Flows

A. V. Koldoba, G. V. Ustyugova, P. S. Lii +4

We describe a Godunov-type magnetohydrodynamic (MHD) code based on the Miyoshi and Kusano (2005) solver which can be used to solve various astrophysical hydrodynamic and MHD proble…

astro-ph.GA2015★ 14 cited

AGC 226067: A possible interacting low-mass system

E. A. K. Adams, J. M. Cannon, K. L. Rhode +8

We present Arecibo, GBT, VLA and WIYN/pODI observations of the ALFALFA source AGC 226067. Originally identified as an ultra-compact high velocity cloud and candidate Local Group ga…

astro-ph.GA2015★ 28 cited

From HI to Stars: HI Depletion in Starbursts and Star-Forming Galaxies in the ALFALFA H-alpha Survey

A. E. Jaskot, M. S. Oey, J. J. Salzer +3

HI in galaxies traces the fuel for future star formation and reveals the effects of feedback on neutral gas. Using a statistically uniform, HI-selected sample of 565 galaxies from…

astro-ph.GA2015★ 114 cited

The Effect of Structure and Star Formation on the Gas Content of Nearby Galaxies

Toby Brown, Barbara Catinella, Luca Cortese +3

We revisit the main HI-to-stellar mass ratio (gas fraction) scaling relations, taking advantage of the HI spectral stacking technique to understand the dependence of gas content on…