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16 April 2024

» arxiv » 0812.4094

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HD 91669b: A New Brown Dwarf Candidate from the McDonald Observatory Planet Search
Robert A. Wittenmyer ; Michael Endl ; William D. Cochran ; Ivan Ramirez ; Sabine Reffert ; Phillip J. MacQueen ; Matthew Shetrone ;
Date:	22 Dec 2008
Abstract:	We report the detection of a candidate brown dwarf orbiting the metal-rich K dwarf HD 91669, based on radial-velocity data from the McDonald Observatory Planet Search. HD 91669b is a substellar object in an eccentric orbit (e=0.45) at a separation of 1.2 AU. The minimum mass of 30.6 Jupiter masses places this object firmly within the brown dwarf desert for inclinations i>23 degrees. This is the second rare close-in brown dwarf candidate discovered by the McDonald planet search program.
Source:	arXiv, 0812.4094
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