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Title:
Single and Composite Hot Subdwarf Stars in the Light of 2MASS Photometry
Authors:
Stark, M. A.; Wade, Richard A.; Berriman, G. B.
Affiliation:
AA(Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA ), AB(Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA), AC(IPAC, Caltech, CA, USA)
Publication:
Astrophysics and Space Science, v. 291, Issue 3, p. 333-336 (2004). (Ap&SS Homepage)
Publication Date:
06/2004
Origin:
KLUWER; SPRINGER
Keywords:
binaries, early-type stars, horizontal branch stars, subdwarfs, infrared
DOI:
10.1023/B:ASTR.0000044340.84919.2b
Bibliographic Code:
2004Ap&SS.291..333S

Abstract

Utilizing the Two Micron All Sky Survey (2MASS) All-Sky Data Release Catalog, we have retrieved useful near-IR J, H and K S magnitudes for more than 800 hot subdwarfs (sdO and sdB stars) drawn from the Catalogue of Spectroscopically Identified Hot Subdwarfs (Kilkenny, Heber, and Drilling, 1988, 1992). This sample size greatly exceeds previous studies of hot subdwarfs.
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