A SUBSTELLAR COMPANION TO THE DUSTY PLEIADES STAR HD 23514

Journal Article · Tue Mar 20 00:00:00 EDT 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/748/1/30· OSTI ID:22016170

Rodriguez, David R; Zuckerman, B ^[1]; Marois, Christian ^[2]; Macintosh, Bruce ^[3]; Melis, Carl ^[4]

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1. Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)
2. National Research Council Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC V9E 2E7 (Canada)
3. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States)
4. Center for Astrophysics and Space Sciences, University of California, San Diego, CA 92093 (United States)

With adaptive optics imaging at Keck observatory, we have discovered a substellar companion to the F6 Pleiades star HD 23514, one of the dustiest main-sequence stars known to date (L{sub IR}/L{sub *} {approx} 2%). This is one of the first brown dwarfs discovered as a companion to a star in the Pleiades. The 0.06 M{sub Sun} late-M secondary has a projected separation of {approx}360 AU. The scarcity of substellar companions to stellar primaries in the Pleiades combined with the extremely dusty environment make this a unique system to study.

• OSTI ID: 22016170
• Journal Information: Astrophysical Journal, Vol. 748, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BINARY STARS
DUSTS
DWARF STARS
MAIN SEQUENCE STARS
STAR EVOLUTION