output
19952026
most citedObservational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

19.6k citations

Showing 2013Show all

14 papers · 1 filter

astro-ph.EP2013★ 22 cited

Dispersion in Neptune's Zonal Wind Velocities from NIR Keck AO Observations in July 2009

Patrick J. Fitzpatrick, Imke de Pater, Statia Luszcz-Cook +2

We report observations of Neptune made in H-(1.4-1.8 μm) and K'-(2.0-2.4 μm) bands on 14 and 16 July 2009 from the 10-m W.M. Keck II Telescope using the near-infrared camera NIRC2…

astro-ph.EP2013★ 66 cited

Neptune at Summer Solstice: Zonal Mean Temperatures from Ground-Based Observations 2003-2007

Leigh N. Fletcher, Imke de Pater, Glenn S. Orton +3

Imaging and spectroscopy of Neptune's thermal infrared emission is used to assess seasonal changes in Neptune's zonal mean temperatures between Voyager-2 observations (1989, helioc…

astro-ph.SR2013★ 32 cited

A Study of the Unusual Z Cam Systems IW Andromedae and V513 Cassiopeia

Paula Szkody, Meagan Albright, Albert P. Linnell +7

The Z Cam stars IW And and V513 Cas are unusual in having outbursts following their standstills in contrast to the usual Z Cam behavior of quiescence following standstills. In orde…

astro-ph.SR2013★ 204 cited

The Intrinsic Extreme Ultraviolet Fluxes of F5 V to M5 V Stars

Jeffrey L. Linsky, Juan Fontenla, Kevin France

Extreme ultraviolet (EUV) radiations (10--117 nm) from host stars play important roles in the ionization, heating, and mass loss from exoplanet atmospheres. Together with the host…

astro-ph.SR2013★ 32 cited

KIC 9406652: An Unusual Cataclysmic Variable in the Kepler Field of View

Douglas R. Gies, Zhao Guo, Steve B. Howell +6

KIC 9406652 is a remarkable variable star in the Kepler field of view that shows both very rapid oscillations and long term outbursts in its light curve. We present an analysis of…

astro-ph.SR2013★ 46 cited

WOCS 40007: A Detached Eclipsing Binary near the Turnoff of the Open Cluster NGC 6819

Mark W. Jeffries, Eric L. Sandquist, Robert D. Mathieu +10

We analyze extensive BVR_cI_c time-series photometry and radial-velocity measurements for WOCS 40007 (Auner 259; KIC 5113053), a double-lined detached eclipsing binary and a member…

astro-ph.CO2013★ 24 cited

Near-Infrared Detection of a Super-Thin Disk in NGC 891

Andrew Schechtman-Rook, Matthew A. Bershady

We probe the disk structure of the nearby, massive, edge-on spiral galaxy NGC 891 with sub-arcsecond resolution JHKs-band images covering ~+/-10 kpc in radius and +/-5 kpc in heigh…

astro-ph.EP2013★ 98 cited

Spectroscopy of Faint Kepler Mission Exoplanet Candidate Host Stars

Mark E. Everett, Steve B. Howell, David R. Silva +1

Stellar properties are measured for a large set of Kepler Mission exoplanet candidate host stars. Most of these stars are fainter than 14th magnitude, in contrast to other spectros…

astro-ph.IM2013★ 57 cited

Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy

O. Mousis, R. Hueso, J. -P. Beaulieu +57

Amateur contributions to professional publications have increased exponentially over the last decades in the field of Planetary Astronomy. Here we review the different domains of t…

astro-ph.CO2013★ 147 cited

ALFALFA Discovery of the Nearby Gas-Rich Dwarf Galaxy Leo~P. III. An Extremely Metal Deficient Galaxy

Evan D. Skillman, John J. Salzer, Danielle A. Berg +10

We present KPNO 4-m and LBT/MODS spectroscopic observations of an HII region in the nearby dwarf irregular galaxy Leo P discovered recently in the Arecibo ALFALFA survey. In both o…

astro-ph.SR2013★ 27 cited

Identification of 5 Interacting Binaries in the Galactic Bulge Survey

C. T. Britt, M. A. P. Torres, R. I. Hynes +10

We present optical lightcurves, spectroscopy, and classification of five X-ray sources in the Chandra Galactic Bulge Survey [CXOGBS J174009.1-284725 (CX5), CXOGBS J173935.7-272935…

astro-ph.GA2013★ 80 cited

Kinematics of Outer Halo Globular Clusters in M31

J. Veljanoski, A. M. N. Ferguson, A. D. Mackey +12

We present the first kinematic analysis of the far outer halo globular cluster (GC) population in the Local Group galaxy M31. Our sample contains 53 objects with projected radii of…

astro-ph.SR2013★ 42 cited

Toward a Spectroscopic Census of White Dwarfs Within 40 parsecs of the Sun

M. -M. Limoges, S. Lepine, P. Bergeron

We present the preliminary results of a survey aimed at significantly increasing the range and completeness of the local census of spectroscopically confirmed white dwarfs. The cur…

astro-ph.EP2013★ 59 cited

Spitzer Observations of GJ3470b: a Very Low-density Neptune-size Planet Orbiting a Metal-rich M dwarf

Brice-Olivier Demory, Guillermo Torres, Vasco Neves +13

We present Spitzer/IRAC 4.5-micron transit photometry of GJ3470b, a Neptune-size planet orbiting a M1.5 dwarf star with a 3.3-day period recently discovered in the course of the HA…