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

19.6k citations

Showing 2010Show all

28 papers · 1 filter

astro-ph.CO2010★ 172 cited

Galaxy clustering in the NEWFIRM Medium Band Survey: the relationship between stellar mass and dark matter halo mass at 1 < z < 2

David A. Wake, Katherine E. Whitaker, Ivo Labbé +8

We present an analysis of the clustering of galaxies as a function of their stellar mass at 1 < z < 2 using data from the NEWFIRM Medium Band Survey (NMBS). The precise photometric…

astro-ph.GA2010★ 10 cited

Mapping the Asymmetric Thick Disk: III. The Kinematics and Interaction with the Galactic Bar

Roberta M. Humphreys, Timothy C. Beers, Juan E. Cabanela +4

In the first two papers of this series, Larsen et al (2010a,b) describe our faint CCD survey in the inner Galaxy and map the over-density of Thick Disk stars in Quadrant I (Q1) to…

astro-ph.CO2010★ 33 cited

Anatomy of a post-starburst minor merger: a multi-wavelength WFC3 study of NGC 4150

R. Mark Crockett, Sugata Kaviraj, Joseph I. Silk +22

(Abridged) We present a spatially-resolved near-UV/optical study of NGC 4150, using the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. Previous studies of this ear…

astro-ph.SR2010★ 93 cited

Precision photometric monitoring of very low mass Sigma Orionis cluster members: variability and rotation at a few Myr

Ann Marie Cody, Lynne Hillenbrand

We present high-precision photometry on 107 variable low-mass stars and brown dwarfs in the ~3 Myr Sigma Orionis open cluster. We have carried out I-band photometric monitoring wit…

astro-ph.SR2010★ 12 cited

Whole Earth Telescope Observations of the subdwarf B star KPD 1930+2752: A rich, short period pulsator in a close binary

M. D. Reed, S. L. Harms, S. Poindexter +58

KPD 1930+2752 is a short-period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable with a known binary period just over two hours. The companion is most likely a w…

astro-ph.SR2010★ 21 cited

The Exotic Eclipsing Nucleus of the Ring Planetary Nebula SuWt2

K. Exter, Howard E. Bond, Keivan G. Stassun +3

SuWt2 is a planetary nebula (PN) consisting of a bright ionized thin ring seen nearly edge-on. It has a bright (V=12) central star, too cool to ionize the PN, which we discovered t…

astro-ph.SR2010★ 355 cited

Chemical Abundances for 855 Giants in the Globular Cluster Omega Centauri (NGC 5139)

Christian I. Johnson, Catherine A. Pilachowski

We present elemental abundances for 855 red giant branch (RGB) stars in the globular cluster Omega Centauri (w Cen) from spectra obtained with the Blanco 4m telescope and Hydra mul…

astro-ph.SR2010★ 265 cited

A Stellar Rotation Census of B Stars: from ZAMS to TAMS

Wenjin Huang, Douglas R. Gies, M. Virginia McSwain

Two recent observing campaigns provide us with moderate dispersion spectra of more than 230 cluster and 370 field B stars. Combining them and the spectra of the B stars from our pr…

astro-ph.CO2010★ 34 cited

Hubble Space Telescope Imaging of Lyman Alpha Emission at z=4.4

Steven L. Finkelstein, Seth H. Cohen, Rogier A. Windhorst +28

We present the highest redshift detections of resolved Lyman alpha emission, using Hubble Space Telescope/ACS F658N narrowband-imaging data taken in parallel with the Wide Field Ca…

astro-ph.SR2010★ 19 cited

A New Small-Amplitude Variable Hot DQ White Dwarf

B. H. Dunlap, B. N. Barlow, J. C. Clemens

We present the discovery of photometric variations in the carbon-dominated atmosphere (hot DQ) white dwarf star SDSS J133710.19-002643.6. We find evidence for two low-amplitude, ha…

astro-ph.GA2010★ 9 cited

Near-infrared counterparts of Chandra X-ray sources toward the Galactic Center

Curtis DeWitt, Reba M. Bandyopadhyay, Stephen S. Eikenberry +4

The Chandra X-ray Observatory has now discovered nearly 10,000 X-ray point sources in the 2 x 0.8 degree region around the Galactic Center (Muno 2009). The sources are likely to be…

astro-ph.SR2010★ 83 cited

Progressive star formation in the young galactic super star cluster NGC 3603

Giacomo Beccari, Loredana Spezzi, Guido De Marchi +22

Early release science observations of the cluster NGC3603 with the WFC3 on the refurbished HST allow us to study its recent star formation history. Our analysis focuses on stars wi…

astro-ph.SR2010★ 26 cited

Two-dimensional solar spectropolarimetry with the KIS/IAA Visible Imaging Polarimeter

C. Beck, L. R. Bellot Rubio, T. J. Kentischer +2

Spectropolarimetry at high spatial and spectral resolution is a basic tool to characterize the magnetic properties of the solar atmosphere. We introduce the KIS/IAA Visible Imaging…

astro-ph.IM2010★ 56 cited

Theory of Dispersed Fixed-Delay Interferometry for Radial Velocity Exoplanet Searches

Julian C. van Eyken, Jian Ge, Suvrath Mahadevan

The dispersed fixed-delay interferometer (DFDI) represents a new instrument concept for high-precision radial velocity (RV) surveys for extrasolar planets. A combination of Michels…

astro-ph.GA2010★ 10 cited

The Membership and Distance of the Open Cluster Collinder 419

Lewis C. Roberts, Douglas R. Gies, J. Robert Parks +6

The young open cluster Collinder 419 surrounds the massive O star, HD 193322, that is itself a remarkable multiple star system containing at least four components. Here we present…

astro-ph.SR2010★ 80 cited

Yellow Supergiants in the Small Magellanic Cloud (SMC): Putting Current Evolutionary Theory to the Test

Kathryn F. Neugent, Philip Massey, Brian Skiff +3

The yellow supergiant content of nearby galaxies provides a critical test of massive star evolutionary theory. While these stars are the brightest in a galaxy, they are difficult t…

astro-ph.SR2010★ 76 cited

New findings on the prototypical Of?p stars

Y. Naze, A. ud-Doula, M. Spano +3

In recent years several in-depth investigations of the three Galactic Of?p stars were undertaken. These multiwavelength studies revealed the peculiar properties of these objects (i…

astro-ph.CO2010★ 118 cited

The Atacama Cosmology Telescope: Physical Properties and Purity of a Galaxy Cluster Sample Selected via the Sunyaev-Zel'dovich Effect

Felipe Menanteau, Jorge Gonzalez, Jean-Baptiste Juin +48

We present optical and X-ray properties for the first confirmed galaxy cluster sample selected by the Sunyaev-Zel'dovich Effect from 148 GHz maps over 455 square degrees of sky mad…

astro-ph.SR2010★ 20 cited

The double degenerate system NLTT 11748

A. Kawka, S. Vennes, T. R. Vaccaro

We show that the extremely low-mass white dwarf NLTT 11748 (0.17 M_sun) is in a close binary with a fainter companion. We obtained a series of radial velocity measurements of the l…

astro-ph.IM2010★ 14 cited

Astronomy's Greatest Hits: The 100 most Cited Papers in Each Year of the First Decade of the 21st Century (2000 - 2009)

Jay A. Frogel

This paper is based on the 100 most cited papers in astronomy for each year from 2000 to 2009 and from 1995 and 1990. The main findings are: The total number of authors of the top…

astro-ph.CO2010★ 31 cited

Hubble Space Telescope WFC3 Early Release Science: Emission-Line Galaxies from Infrared Grism Observations

A. N. Straughn, H. Kuntschner, M. Kuemmel +30

We present grism spectra of emission-line galaxies (ELGs) from 0.6-1.6 microns from the Wide Field Camera 3 on the Hubble Space Telescope. These new infrared grism data augment pre…

astro-ph.CO2010★ 284 cited

The Hubble Space Telescope Wide Field Camera 3 Early Release Science data: Panchromatic Faint Object Counts for 0.2-2 microns wavelength

Rogier A. Windhorst, Seth H. Cohen, Nimish P. Hathi +35

We describe the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) Early Release Science (ERS) observations in the Great Observatories Origins Deep Survey (GOODS) South field.…

astro-ph.SR2010★ 12 cited

Abundance analysis for long period variables. Velocity effects studied with O-rich dynamic model atmospheres

T. Lebzelter, W. Nowotny, S. Höfner +3

(abbreviated) Measuring the surface abundances of AGB stars is an important tool for studying the effects of nucleosynthesis and mixing in the interior of low- to intermediate mass…

astro-ph.GA2010★ 123 cited

A Hidden Population of Massive Stars with Circumstellar Shells Discovered with the Spitzer Space Telescope

S. Wachter, J. C. Mauerhan, S. D. Van Dyk +3

We have discovered a large number of circular and elliptical shells at 24 microns around luminous central sources with the MIPS instrument on-board the Spitzer Space Telescope. Our…