Showing 2014 · astro-ph.GAShow all

68 papers · 2 filters

astro-ph.GA2014★ 12 cited

Star Formation in High-Redshift Cluster Ellipticals

Cory R. Wagner, Mark Brodwin, Gregory F. Snyder +11

We measure the star formation rates (SFRs) of massive () early-type galaxies (ETGs) in a sample of 11 high-redshift () galaxy clusters…

astro-ph.GA2014★ 33 cited

A Focused, Hard X-ray Look at Arp 299 with NuSTAR

A. Ptak, A. Hornschemeier, A. Zezas +19

We report on simultaneous observations of the local starburst system Arp 299 with NuSTAR and Chandra, which provides the first resolved images of this galaxy up to energies of ~ 45…

astro-ph.GA2014★ 6 cited

Three-dimensional Tomography of the Galactic and Extragalactic Magnetoionic Medium with the SKA

J. L. Han, W. van Straten, T. J. W. Lazio +9

The magneto-ionic structures of the interstellar medium of the Milky Way and the intergalactic medium are still poorly understood, especially at distances larger than a few kilopar…

astro-ph.GA2014★ 6 cited

The Q/U Imaging Experiment: Polarization Measurements of Radio Sources at 43 and 95 GHz

QUIET Collaboration, K. M. Huffenberger, D. Araujo +24

We present polarization measurements of extragalactic radio sources observed during the Cosmic Microwave Background polarization survey of the Q/U Imaging Experiment (QUIET), opera…

astro-ph.GA2014★ 39 cited

Two Local Volume Dwarf Galaxies Discovered in 21 cm Emission: Pisces A and B

Erik J. Tollerud, Marla C. Geha, Jana Grcevich +2

We report the discovery of two dwarf galaxies, Pisces A and B, from a blind 21 cm HI search. These were the only two galaxies found via optical imaging and spectroscopy of 22 HI cl…

astro-ph.GA2014★ 111 cited

Planck intermediate results. XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps

Planck Collaboration, P. A. R. Ade, N. Aghanim +187

Planck observations at 353GHz provide the first fully-sampled maps of the polarized dust emission towards interstellar filaments and their backgrounds. The polarization data provid…

astro-ph.GA2014★ 213 cited

Magnetic Fields in High-Mass Infrared Dark Clouds

Thushara Pillai, Jens Kauffmann, Jonathan C. Tan +3

High-mass Stars are cosmic engines known to dominate the energetics in the Milky Way and other galaxies. However, their formation is still not well understood. Massive, cold, dense…

astro-ph.GA2014★ 189 cited

The far-infrared/radio correlation and radio spectral index of galaxies in the SFR-M* plane up to z 2

B. Magnelli, R. J. Ivison, D. Lutz +21

[Abridged] We study the evolution of the radio spectral index and far-infrared/radio correlation (FRC) across the star-formation rate-stellar masse (i.e. SFR-M*) plane up to z 2. W…

astro-ph.GA2014★ 12 cited

Spitzer/infrared spectrograph investigation of MIPSGAL 24 μm compact bubbles : Low resolution observations

M. Nowak, N. Flagey, A. Noriega-Crespo +4

We present Spitzer/IRS low resolution observations of 11 compact circumstellar bubbles from the MIPSGAL 24 μm Galactic Plane Survey. We find that this set of MIPSGAL bubbles (MBs)…

astro-ph.GA2014★ 50 cited

The Dark Matter Halos of Moderate Luminosity X-ray AGN as Determined from Weak Gravitational Lensing and Host Stellar Masses

A. Leauthaud, A. J. Benson, F. Civano +9

Understanding the relationship between galaxies hosting active galactic nuclei (AGN) and the dark matter halos in which they reside is key to constraining how black-hole fueling is…

astro-ph.GA2014★ 101 cited

[CII] absorption and emission in the diffuse interstellar medium across the Galactic Plane

M. Gerin, M. Ruaud, J. R. Goicoechea +10

Ionized carbon is the main gas-phase reservoir of carbon in the neutral diffuse interstellar medium and its 158 micron fine structure transition [CII] is the most important cooling…

astro-ph.GA2014★ 166 cited

The Most Luminous Galaxies Discovered by WISE

Chao-Wei Tsai, Peter Eisenhardt, Jingwen Wu +25

We present 20 WISE-selected galaxies with bolometric luminosities L_bol > 10^14 L_sun, including five with infrared luminosities L_IR = L(rest 8-1000 micron) > 10^14 L_sun. These "…

astro-ph.GA2014★ 8 cited

Indications of M-dwarf Deficits in the Halo and Thick Disk of the Galaxy

Mihoko Konishi, Hiroshi Shibai, Takahiro Sumi +55

We compared the number of faint stars detected in deep survey fields with the current stellar distribution model of the Galaxy and found that the detected number in the H band is s…

astro-ph.GA2014★ 81 cited

A Far-Infrared Spectroscopic Survey of Intermediate Redshift (Ultra) Luminous Infrared Galaxies

Georgios E. Magdis, D. Rigopoulou, R. Hopwood +16

We present Herschel far-IR photometry and spectroscopy as well as ground based CO observations of an intermediate redshift (0.21 < z < 0.88) sample of Herschel-selected (ultra)-lum…

astro-ph.GA2014★ 138 cited

An all-sky search for continuous gravitational waves in the Parkes Pulsar Timing Array data set

X. -J. Zhu, G. Hobbs, L. Wen +16

We present results of an all-sky search in the Parkes Pulsar Timing Array (PPTA) Data Release 1 data set for continuous gravitational waves (GWs) in the frequency range from $5\tim…

astro-ph.GA2014★ 19 cited

Detailed modelling of a large sample of Herschel sources in the Lockman Hole: identification of cold dust and of lensing candidates through their anomalous SEDs

Michael Rowan-Robinson, Lingyu Wang, Julie Wardlow +12

We have studied in detail a sample of 967 SPIRE sources with 5-sigma detections at 350 and 500 micron and associations with Spitzer-SWIRE 24 micron galaxies in the HerMES-Lockman s…

astro-ph.GA2014★ 37 cited

Origin and z-distribution of Galactic diffuse [CII] emission

T. Velusamy, W. D. Langer

We determine the source of the diffuse [CII] emission by studying its spatial (radial and vertical) distributions. We used the HIFI [CII] Galactic survey (GOT C+), along with HI, 1…

astro-ph.GA2014★ 106 cited

Why z > 1 radio-loud galaxies are commonly located in proto-clusters

N. A. Hatch, D. Wylezalek, J. D. Kurk +9

Distant powerful radio-loud active galactic nuclei (RLAGN) tend to reside in dense environments and are commonly found in proto-clusters at z > 1.3. We examine whether this occurs…

astro-ph.GA2014★ 12 cited

Photon-Dominated Region Modeling of the [C I],[C II], and CO Line Emission from a Boundary in the Taurus Molecular Cloud

Matthew Orr, Jorge Pineda, Paul Goldsmith

We present [Ci] and [Cii] observations of a linear edge region in the Taurus molecular cloud, and model this region as a cylindrically symmetric PDR exposed to a low-intensity UV r…

astro-ph.GA2014★ 154 cited

Planck intermediate results. XXIX. All-sky dust modelling with Planck, IRAS, and WISE observations

Plank Collaboration, P. A. R. Ade, N. Aghanim +195

We present all-sky modelling of the high resolution Planck, IRAS, and WISE infrared (IR) observations using the physical dust model presented by Draine and Li in 2007 (DL). We stud…

astro-ph.GA2014★ 128 cited

A Herschel [CII] Galactic plane survey III: [CII] as a tracer of star formation

Jorge L. Pineda, William D. Langer, Paul F. Goldsmith

We study the relationship between the [CII] emission and the star formation rate (SFR) in the Galactic plane and separate the relationship of different ISM phases to the SFR. We co…

astro-ph.GA2014★ 46 cited

Herschel HIFI observations of O toward Orion: special conditions for shock enhanced emission

Jo-Hsin Chen, Paul F. Goldsmith, Serena Viti +18

We report observations of molecular oxygen (O) rotational transitions at 487 GHz, 774 GHz, and 1121 GHz toward Orion Peak A. The O2 lines at 487 GHz and 774 GHz are detected at…

astro-ph.GA2014★ 193 cited

Half of the Most Luminous Quasars May Be Obscured: Investigating the Nature of WISE-Selected Hot, Dust-Obscured Galaxies

Roberto J. Assef, Peter R. M. Eisenhardt, Daniel Stern +9

The WISE mission has unveiled a rare population of high-redshift (), dusty, hyper-luminous galaxies, with infrared luminosities , and somet…

astro-ph.GA2014★ 45 cited

Measuring Galaxy Clustering and the Evolution of [CII] Mean Intensity with far-IR Line Intensity Mapping During 0.5 < z < 1.5

Bade D. Uzgil, James E. Aguirre, Charles M. Bradford +1

Infrared fine-structure emission lines from trace metals are powerful diagnostics of the interstellar medium in galaxies. We explore the possibility of studying the redshifted far-…