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19922026
most citedSSD: Single Shot MultiBox Detector

22k citations

Showing 2004 · astro-phShow all

21 papers · 2 filters

astro-ph2004★ 24 cited

A Survey of Proper Motion Stars. XVII. A Deficiency of Binary Stars on Retrograde Galactic Orbits and the Possibility that omega Centauri is Related to the Effect

Bruce W. Carney, Luis A. Aguilar, David W. Latham +1

We find a deficiency of binary stars moving on strongly retrograde Galactic orbits. No binary deficiencies are seen for U or W velocities, however. From theoretical analyses, we ru…

astro-ph2004★ 74 cited

Metal-poor Field Blue Stragglers: More Evidence for Mass Transfer

Bruce W. Carney, David W. Latham, John B. Laird

We report radial velocity studies of five candidate metal-poor field blue stragglers, all known to be deficient in lithium. Four of the five stars are single-lined spectroscopic bi…

astro-ph2004★ 55 cited

Radial Age and Metal Abundance Gradients in the Stellar Content of M32

James A. Rose, Nobuo Arimoto, Nelson Caldwell +3

We present long-slit spectroscopy of the elliptical galaxy M32, obtained with the 8-m Subaru telescope at Mauna Kea, the 1.5-m Tillinghast telescope at the F. L. Whipple Observator…

astro-ph2004★ 58 cited

Infrared Photometry of NGC 6791

Bruce W. Carney, Jae-Woo Lee, Benjamin Dodson

We present deep JHK photometry of the old and metal-rich open cluster NGC 6791. The photometry reaches below the main sequence turn-off to K = 16.5 mag. We combine our photometry w…

astro-ph2004★ 73 cited

High-Resolution Spectroscopy of the Transiting Planet Host Star TrES-1

A. Sozzetti, D. Yong, G. Torres +6

We report on a spectroscopic determination of the stellar parameters and chemical abundances for the parent star of the transiting planet TrES-1. Based on a detailed analysis of ir…

astro-ph2004★ 47 cited

Structural properties of discs and bulges of early-type galaxies

Roelof S. de Jong, Luc Simard, Roger L. Davies +5

We have used the EFAR sample of galaxies to study the light distributions of early-type galaxies. We decompose the 2D light distribution of the galaxies in a flattened spheroidal c…

astro-ph2004★ 32 cited

Chemical Abundances for Seven Giant Stars in M68 (NGC 4590) : A Globular Cluster with Abnormal Silicon and Titanium Abundances

Jae-Woo Lee, Bruce W. Carney, Michael J. Habgood

We present a detailed chemical abundance study of seven giant stars in M68 including six red giants and one post-AGB star. We find significant differences in the gravities determin…

astro-ph2004★ 204 cited

A multi-color and Fourier study of RR Lyrae variables in the globular cluster NGC 5272 (M3)

C. Cacciari, T. M. Corwin, B. W. Carney

We have performed a detailed study of the pulsational and evolutionary characteristics of 133 RR Lyrae stars in the globular cluster NGC5272 (M3) using highly accurate BVI data tak…

astro-ph2004★ 14 cited

Gamma-Ray Burst Dust Echoes Revisited: Expectations at Early Times

Jane A. Moran, Daniel E. Reichart

Gamma-ray burst (GRB) dust echoes were first proposed as an alternative explanation for the supernova-like (SN-like) components to the afterglows of GRB 980326 and GRB 970228. Howe…

astro-ph2004★ 30 cited

Infrared Echelle Spectroscopy of Palomar6 and M71

Jae-Woo Lee, Bruce W. Carney, Suchitra C. Balachandran

We present high-resolution infrared echelle spectroscopy for the globular clusters Palomar 6 and M71. Our mean heliocentric radial velocity of Palomar 6 is +180.6 +/- 3.2 km sec/s…

astro-ph2004★ 80 cited

Probing a GRB progenitor at a redshift of z=2: a comprehensive observing campaign of the afterglow of GRB 030226

S. Klose, J. Greiner, A. Rau +38

We report results from a comprehensive follow-up observing campaign of the afterglow of GRB 030226, including VLT spectroscopy, VLT polarimetry, and Chandra X-ray observations. In…

astro-ph2004★ 31 cited

Spatially Resolved Ultraviolet Spectra of the High-Velocity Nuclear Outflow of NGC 1068

Brent Groves, Gerald Cecil, Pierre Ferruit +1

We present ultraviolet emission-line maps of the narrow-line region (NLR) of NGC 1068. The maps span 115--318 nm, the biconical ionization cone, several posited jet/ISM interaction…

astro-ph2004★ 2 cited

Evolution and Fragmentation of Wide-Angle Wind Driven Molecular Outflows

Andrew Cunningham, Adam Frank, Peggy Varnière +3

We present two dimensional cylindrically symmetric hydrodynamic simulations and synthetic emission maps of a stellar wind propagating into an infalling, rotating environment. The r…

astro-ph2004★ 16 cited

Bigger Rip with No Dark Energy

Paul H. Frampton, Tomo Takahashi

By studying a modified Friedmann equation which arises in an extension of general relativity which accommodates a time-dependent fundamental length , we consider cosmological…

astro-ph2004★ 103 cited

The Identification of Blue Horizontal Branch Stars in the Integrated Spectra of Globular Clusters

Ricardo P. Schiavon, James A. Rose, Stephane Courteau +1

A major uncertainty in the spectroscopic dating of extragalactic globular clusters concerns the degenerate effect that age and horizontal branch morphology have on the strength of…

astro-ph2004★ 21 cited

The Peculiar Pulsations of PY Vul

Susan E. Thompson, J. C. Clemens, M. H. van Kerkwijk +2

The pulsating white dwarf star PY Vul (G~185-32) exhibits pulsation modes with peculiar properties that set it apart from other variable stars in the ZZ Ceti (DAV) class. These pec…

astro-ph2004★ 67 cited

Observations of Non-radial Pulsations in Radio Pulsars

J. Christopher Clemens, R. Rosen

We introduce a model for pulsars in which non-radial oscillations of high spherical degree (l) aligned to the magnetic axis of a spinning neutron star reproduce the morphological f…

astro-ph2004★ 48 cited

Are Domain Walls ruled out ?

Luca Conversi, Alessandro Melchiorri, Laura Mersini +1

Recent analysis of the combined data of cosmic microwave background, galaxy clustering and supernovae type Ia observations have set strong constraints on the equation of state para…

astro-ph2004★ 609 cited

The Indo-U.S. Library of Coude Feed Stellar Spectra

Francisco Valdes, Ranjan Gupta, James A. Rose +2

We have obtained spectra for 1273 stars using the 0.9m Coudé Feed telescope at Kitt Peak National Observatory. This telescope feeds the coudé spectrograph of the 2.1m telescope. Th…

astro-ph2004★ 137 cited

The effect of metallicity on the Cepheid Period-Luminosity relation from a Baade-Wesselink analysis of Cepheids in the Galaxy and in the Small Magellanic Cloud

Jesper Storm, Bruce W. Carney, Wolfgang P. Gieren +3

(ABRIDGED) We have applied the near-IR Barnes-Evans realization of the Baade-Wesselink method as calibrated by Fouque & Gieren (1997) to five metal-poor Cepheids with periods betwe…

astro-ph2004★ 26 cited

BVRIJK light curves and radial velocity curves for selected Magellanic Cloud Cepheids

Jesper Storm, Bruce W. Carney, Wolfgang P. Gieren +4

We present high precision and well sampled BVRIJK light curves and radial velocity curves for a sample of five Cepheids in the SMC. In addition we present radial velocity curves fo…