output
19952026
most citedThe Apache Point Observatory Galactic Evolution Experiment (APOGEE)

1.8k citations

Showing 2006Show all

38 papers · 1 filter

astro-ph2006★ 16 cited

Radio and millimeter properties of Ly emitters in the COSMOS field: limits on radio AGN, submm galaxies, and dust obscuration

C. L. Carilli, T. Murayam, R. Wang +12

We present observations at 1.4 and 250 GHz of the Ly emitters (LAE) in the COSMOS field found by Murayama et al.. At 1.4 GHz there are 99 LAEs in the lower noise reg…

astro-ph2006★ 16 cited

Hard X-rays and Fluorescent Iron Emission from the Embedded Infrared Cluster in NGC 2071

Stephen L. Skinner, Audrey E. Simmons, Marc Audard +1

We present first results of XMM-Newton X-ray observations of the infrared cluster lying near the NGC 2071 reflection nebula in the Orion B region. This cluster is of interest becau…

astro-ph2006★ 104 cited

Baroclinic Vorticity Production in Protoplanetary Disks; Part II: Vortex Growth and Longevity

Mark R. Petersen, Glen R. Stewart, Keith Julien

The factors affecting vortex growth in convectively stable protoplanetary disks are explored using numerical simulations of a two-dimensional anelastic-gas model which includes bar…

astro-ph2006★ 125 cited

Baroclinic Vorticity Production in Protoplanetary Disks; Part I: Vortex Formation

Mark R. Petersen, Keith Julien, Glen R. Stewart

The formation of vortices in protoplanetary disks is explored via pseudo-spectral numerical simulations of an anelastic-gas model. This model is a coupled set of equations for vort…

astro-ph2006★ 47 cited

The Abundance of Interstellar Fluorine and Its Implications

Theodore Snow, Joshua Destree, Adam Jensen

We report results from a survey of neutral fluorine (F I) in the interstellar medium. Data from the Far Ultraviolet Spectroscopic Explorer (FUSE) were used to analyze 26 lines of s…

astro-ph2006★ 33 cited

On the nature of clumps in debris disks

Alexander V. Krivov, Martina Queck, Torsten Löhne +1

The azimuthal substructure observed in some debris disks, as exemplified by epsilon Eridani, is usually attributed to resonances with embedded planets. In a standard scenario, the…

astro-ph2006★ 27 cited

Is There Enhanced Depletion of Gas-Phase Nitrogen in Moderately Reddened Lines of Sight?

Adam G. Jensen, Brian L. Rachford, Theodore P. Snow

We report on the abundance of interstellar neutral nitrogen (NI) for 30 sightlines, using data from the Far Ultraviolet Spectroscopic Explorer (FUSE) and the Hubble Space Telescope…

astro-ph2006★ 33 cited

Capture Formed Binaries via Encounters with Massive Protostars

Nickolas Moeckel, John Bally

Most massive stars are found in the center of dense clusters, and have a companion fraction much higher than their lower mass siblings; the massive stars of the Trapezium core in O…

astro-ph2006★ 41 cited

The Structure of the Homunculus. II. Modeling the physical conditions in Eta Car's molecular shell

Nathan Smith, Gary J. Ferland

We present models that reproduce the observed double-shell structure of the Homunculus Nebula around eta Carinae, including the stratification of infrared H2 and [FeII] emission se…

astro-ph2006★ 78 cited

The first high-resolution X-ray spectrum of a Herbig Star: The case of AB Aurigae

A. Telleschi, M. Guedel, K. R. Briggs +3

We present the first high-resolution X-ray spectrum of a prototypical Herbig star (AB Aurigae), measure and interpret various spectral features, and compare our results with model…

astro-ph2006★ 11 cited

Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars

Rajib Ganguly, Michael S. Brotherton, Nahum Arav +35

We present low-resolution ultraviolet spectra of 14 low redshift (z<0.8) quasars observed with HST/STIS as part of a Snap project to understand the relationship between quasar outf…

astro-ph2006★ 24 cited

On the reliability of the fractal dimension measure of solar magnetic features and on its variation with solar cycle

Serena Criscuoli, Mark Rast, Ilaria Ermolli +1

Several studies have investigated the fractal and multifractal nature of magnetic features in the solar photosphere and its variation with the solar magnetic activity cycle. Here w…

astro-ph2006★ 229 cited

Exotic Earths: Forming Habitable Worlds with Giant Planet Migration

Sean N. Raymond, Avi M. Mandell, Steinn Sigurdsson

Close-in giant planets (e.g. ``Hot Jupiters'') are thought to form far from their host stars and migrate inward, through the terrestrial planet zone, via torques with a massive gas…

astro-ph2006★ 93 cited

Large Area Mapping at 850 Microns. V. Analysis of the Clump Distribution in the Orion A South Molecular Cloud

Doug Johnstone, John Bally

We present results from a 2300 arcmin^2 survey of the Orion A molecular cloud at 450 and 850 micron using the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk M…

astro-ph2006★ 25 cited

Multiwavelength Mass Comparisons of the z~0.3 CNOC Cluster Sample

Amalia K. Hicks, Erica Ellingson, Henk Hoekstra +1

Results are presented from a detailed analysis of optical and X-ray observations of moderate-redshift galaxy clusters from the Canadian Network for Observational Cosmology (CNOC) s…

astro-ph2006★ 17 cited

Discovery of a Metal-Line Absorber Associated with a Local Dwarf Starburst Galaxy

Brian A. Keeney, John T. Stocke, Jessica L. Rosenberg +2

We present optical and near-infrared images, H I 21 cm emission maps, optical spectroscopy, and Hubble Space Telescope/Space Telescope Imaging Spectrograph ultraviolet spectroscopy…

astro-ph2006★ 117 cited

Spitzer Space Telescope Infrared Imaging and Spectroscopy of the Crab Nebula

Tea Temim, Robert D. Gehrz, Charles E. Woodward +7

We present 3.6, 4.5, 5.8, 8.0, 24, and 70 micron images of the Crab Nebula obtained with the Spitzer Space Telescope IRAC and MIPS cameras, Low- and High-resolution Spitzer IRS spe…

astro-ph2006★ 136 cited

Do most planetary nebulae derive from binaries? I Population synthesis model of the galactic planetary nebula population produced by singlestars and binaries

Maxwell Moe, Orsola De Marco

We present a population synthesis calculation to derive the total number of planetary nebulae (PN) in the Galaxy that descend from single stars and stars in binary systems. Using t…

astro-ph2006★ 27 cited

[TiII] and [NiII] emission from the strontium filament of eta Carinae

M. A. Bautista, H. Hartman, T. R. Gull +2

We study the nature of the [TiII] and [NiII] emission from the so-called strontium filament found in the ejecta of eta Carinae. To this purpose we employ multilevel models of the T…

astro-ph2006★ 44 cited

Entrainment Mechanisms for Outflows in the L1551 Star-Forming Region

Irena Stojimirović, Gopal Narayanan, Ronald L. Snell +1

We present high sensitivity 12/13CO(1-0) molecular line maps covering the full extent of the parsec scale L1551 molecular outflow, including the redshifted east-west (EW) flow. We…

astro-ph2006★ 136 cited

Solar Carbon Monoxide, Thermal Profiling, and the Abundances of C, O, and their Isotopes

Thomas R. Ayres, Claude Plymate, Christoph U. Keller

A solar photospheric "thermal profiling" analysis is presented, exploiting the infrared rovibrational bands of carbon monoxide (CO) as observed with the McMath-Pierce Fourier trans…

astro-ph2006★ 27 cited

Far Ultraviolet Spectroscopic Explorer Survey of Magellanic Cloud Supernova Remnants

William P. Blair, Parviz Ghavamian, Ravi Sankrit +1

We report the progress to date from an ongoing unbiased ultraviolet survey of supernova remnants in the Magellanic Clouds using the Far Ultraviolet Spectroscopic Explorer (FUSE) sa…

astro-ph2006★ 34 cited

Detection of Diffuse Interstellar Bands in the z=0.5 Damped Lyman alpha system towards AO 0235+164

Brian A. York, Sara L. Ellison, Brandon Lawton +4

We report the first detection of the 5705 and 5780 A Diffuse Interstellar Bands (DIBs) in a moderate redshift Damped Lyman alpha (DLA) system. We measure a rest frame equivalent wi…

astro-ph2006★ 25 cited

FUSE Spectroscopy of the White Dwarf in U Geminorum

Knox S. Long, Gabriel Brammer, Cynthia S. Froning

Observations of U Gem with FUSE confirm that the WD is heated by the outburst and cools during quiescence. At the end of an outburst, the best uniform temperature WD model fits to…