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357 papers · 1 filter

astro-ph.CO2010★ 30 cited

HerMES: SPIRE/Sub-millimetre Emission from Radio Selected AGN

N. Seymour, M. Symeonidis, M. Page +1

We examine the rest-frame far-infrared emission from powerful radio sources with 1.4GHz luminosity densities of 25<=log(L_1.4/WHz^-1)<=26.5 in the extragalactic Spitzer First Look…

astro-ph.GA2010★ 262 cited

Water in Star-Forming Regions with the Herschel Space Observatory (WISH): Overview of key program and first results

E. F. van Dishoeck, L. E. Kristensen, A. O. Benz +12

`Water In Star-forming regions with Herschel' (WISH) is a key program on the Herschel Space Observatory designed to probe the physical and chemical structure of young stellar objec…

gr-qc2010★ 18 cited

A nonlinear scalar model of extreme mass ratio inspirals in effective field theory I. Self force through third order

Chad R. Galley

The motion of a small compact object in a background spacetime is investigated in the context of a model nonlinear scalar field theory. This model is constructed to have a perturba…

astro-ph.GA2010★ 25 cited

The QUaD Galactic Plane Survey II: A Compact Source Catalog

T. Culverhouse, P. Ade, J. Bock +28

We present a catalog of compact sources derived from the QUaD Galactic Plane Survey. The survey covers ~800 square degrees of the inner galaxy (|b|<4 degrees) in Stokes I, Q and U…

astro-ph.IM2010★ 57 cited

Speckle Suppression with the Project 1640 Integral Field Spectrograph

Justin R. Crepp, Laurent Pueyo, Douglas Brenner +15

Project 1640 is a high-contrast imaging instrument recently commissioned at Palomar observatory. A combination of a coronagraph with an integral field spectrograph (IFS), Project 1…

astro-ph.CO2010★ 125 cited

The Nuclear Structure in Nearby Luminous Infrared Galaxies: HST NICMOS Imaging of the GOALS Sample

S. Haan, J. A. Surace, L. Armus +16

We present results of Hubble Space Telescope NICMOS H-band imaging of 73 of most luminous (i.e., log[L_IR/L_0]>11.4) Infrared Galaxies (LIRGs) in the Great Observatories All-sky LI…

astro-ph.SR2010★ 28 cited

The Galactic Magnetic Field's Effect in Star-Forming Region

Ian W. Stephens, Leslie W. Looney, C. Darren Dowell +2

We investigate the effect of the Milky Way's magnetic field in star forming regions using archived 350 micron polarization data on 52 Galactic star formation regions from the Hertz…

astro-ph.IM2010★ 1 cited

Pulsars with the Australian Square Kilometre Array Pathfinder

I. H. Stairs, M. J. Keith, Z. Arzoumanian +33

The Australian Square Kilometre Array Pathfinder (ASKAP) is a 36-element array with a 30-square-degree field of view being built at the proposed SKA site in Western Australia. We a…

astro-ph.SR2010★ 187 cited

A Spitzer IRS Study of Infrared Variability in Transitional and Pre-Transitional Disks around T Tauri Stars

C. Espaillat, E. Furlan, P. D'Alessio +5

We present a Spitzer IRS study of variability in 14 T Tauri stars in the Taurus and Chamaeleon star-forming regions. The sample is composed of transitional and pre-transitional obj…

astro-ph.SR2010★ 21 cited

Astrometric and Photometric Measurements of Binary Stars with Adaptive Optics: Observations from 2002

Lewis C. Roberts

The adaptive optics system at the 3.6 m AEOS telescope was used to measure the astrometry and differential magnitude in I-band of 56 binary stars in 2002. The astrometric measureme…

astro-ph.SR2010★ 11 cited

The sub-mm J=6-5 line of 13CO in Orion

T. L. Wilson, D. Muders, M. Dumke +2

We present a fully sampled map covering the Orion Hot Core and dense molecular ridge, in the sub-millimeter J=6-5 rotational transition of 13CO, at 0.45 mm with a resolution of 13…

astro-ph.CO2010★ 71 cited

Discovery of an Excess of Halpha Emitters around 4C 23.56 at z=2.48

Ichi Tanaka, Carlos De Breuck, Jaron D. Kurk +12

We report the discovery of a significant excess of candidate Halpha emitters (HAEs) in the field of the radio galaxy 4C 23.56 at z=2.483. Using the MOIRCS near-infrared imager on t…

astro-ph.SR2010

Cool Star Science with the FIRE Spectrograph

Adam J. Burgasser, Robert A. Simcoe, John J. Bochanski +7

The Folded-port InfraRed Echellette (FIRE) has recently been commissioned on the Magellan 6.5m Baade Telescope. This single object, near-infrared spectrometer simultaneously covers…

astro-ph.IM2010★ 33 cited

Parameter distributions of Keplerian orbits

Dmitry Savransky, Eric Cady, N. Jeremy Kasdin

Starting with just the assumption of uniformly distributed orbital orientations, we derive expressions for the distributions of the Keplerian orbital elements as functions of arbit…

astro-ph.SR2010

Ultracool Dwarf Science from Widefield Multi-Epoch Surveys

N. R. Deacon, D. J. Pinfield, P. W. Lucas +9

Widefield surveys have always provided a rich hunting ground for the coolest stars and brown dwarfs. The single epoch surveys at the beginning of this century greatly expanded the…

astro-ph.SR2010★ 44 cited

Rotationally-modulated g-modes in the rapidly-rotating delta Scuti star Rasalhague (alpha Ophiuchi)

J. D. Monnier, R. H. D. Townsend, X. Che +4

Despite a century of remarkable progress in understanding stellar interiors, we know surprisingly little about the inner workings of stars spinning near their critical limit. New i…

astro-ph.CO2010★ 62 cited

X-Ray Emission from Two Infrared-Selected Galaxy Clusters at z>1.4 in the IRAC Shallow Cluster Survey

M. Brodwin, D. Stern, A. Vikhlinin +17

We report the X-ray detection of two z>1.4 infrared-selected galaxy clusters from the IRAC Shallow Cluster Survey (ISCS). We present new data from the Hubble Space Telescope and th…

gr-qc2010★ 19 cited

Multibaseline gravitational wave radiometry

Dipongkar Talukder, Sanjit Mitra, Sukanta Bose

We present a statistic for the detection of stochastic gravitational wave backgrounds (SGWBs) using radiometry with a network of multiple baselines. We also quantitatively compare…

astro-ph.CO2010★ 99 cited

First Season QUIET Observations: Measurements of CMB Polarization Power Spectra at 43 GHz in the Multipole Range 25 <= ell <= 475

QUIET Collaboration, C. Bischoff, A. Brizius +48

The Q/U Imaging ExperimenT (QUIET) employs coherent receivers at 43GHz and 95GHz, operating on the Chajnantor plateau in the Atacama Desert in Chile, to measure the anisotropy in t…

astro-ph.CO2010★ 15 cited

Scale-dependent non-Gaussianities in the WMAP data as identified by using surrogates and scaling indices

C. Raeth, A. J. Banday, G. Rossmanith +5

We present a model-independent investigation of the WMAP data with respect to scale- dependent non-Gaussianities (NGs) by employing the method of constrained randomization. For gen…

astro-ph.EP2010★ 58 cited

Orbits of Near-Earth Asteroid Triples 2001 SN263 and 1994 CC: Properties, Origin, and Evolution

Julia Fang, Jean-Luc Margot, Marina Brozovic +3

Three-body model fits to Arecibo and Goldstone radar data reveal the nature of two near-Earth asteroid triples. Triple-asteroid system 2001 SN263 is characterized by a primary of ~…

astro-ph.CO2010★ 81 cited

Observing the End of Cold Flow Accretion using Halo Absorption Systems

Kyle R. Stewart, Tobias Kaufmann, James S. Bullock +4

We use cosmological SPH simulations to study the cool, accreted gas in two Milky Way-size galaxies through cosmic time to z=0. We find that gas from mergers and cold flow accretion…

astro-ph.EP2010★ 38 cited

VLBA Astrometric Observations of the Cassini Spacecraft at Saturn

D. L. Jones, E. Fomalont, V. Dhawan +5

The planetary ephemeris is an essential tool for interplanetary spacecraft navigation, studies of solar system dynamics (including, for example, barycenter corrections for pulsar t…

astro-ph.EP2010★ 10 cited

Spitzer Spectroscopy of the Circumprimary Disk in the Binary Brown Dwarf 2MASS J04414489+2301513

Lucia Adame, Nuria Calvet, K. L. Luhman +6

Using the Spitzer Infrared Spectrograph, we have performed mid-infrared spectroscopy on the young binary brown dwarf 2MASS J04414489+2301513 (15 AU) in the Taurus star-forming regi…