HD 137510: An Oasis in the Brown Dwarf Desert

Bibcode
2004ApJ...611.1121E
DOI
10.1086/422310
Endl, Michael; Hatzes, Artie P.; Cochran, William D.; McArthur, Barbara; Allende Prieto, Carlos; Paulson, Diane B.; Guenther, Eike; Bedalov, Ana
Referencia bibliográfica

The Astrophysical Journal, Volume 611, Issue 2, pp. 1121-1124.

Fecha de publicación:
8
2004
Revista
The Astrophysical Journal
Número de autores
8
Número de autores del IAC
0
Número de citas
41
Número de citas referidas
34
Descripción
Since the beginning of precise Doppler surveys, which have had stunning success in detecting extrasolar planetary companions, one surprising enigma has emerged: the relative paucity of spectroscopic binaries where the secondary mass lies in between the stellar and planetary mass regime. This gap in the mass function for close-in (a<3-4 AU) companions to solar-type stars is generally referred to as the ``brown dwarf desert.'' Here we report the detection of a companion to HD 137510 (G0 IV), with a minimum mass of 26MJ, moving in an eccentric orbit (e=0.4) with a period of 798 days and an orbital semimajor axis of 1.85 AU. The detection is based on precise differential radial velocity data obtained by the McDonald Observatory and Thüringer Landessternwarte Tautenburg planet search programs. Based on observations made at McDonald Observatory and the Thüringer Landessternwarte Tautenburg.
Tipo
Con árbitro
Técnicas

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