LOW-MASS COMPANIONS FOR FIVE SOLAR-TYPE STARS FROM THE MAGELLAN PLANET SEARCH PROGRAM

Minniti, D; Butler, RP; Lopez-Morales, M; Shectman, SA; Adams, FC; Arriagada, P; Boss, AP; Chambers, JE

Abstract

We report low-mass companions orbiting five solar-type stars that have emerged from the Magellan precision Doppler velocity survey, with minimum (Msin i) masses ranging from 1.2 to 25 M JUP. These nearby target stars range from mildly metal-poor to metal-rich, and appear to have low chromospheric activity. The companions to the brightest two of these stars have previously been reported from the CORALIE survey. Four of these companions (HD 48265-b, HD 143361-b, HD 28185-b, and HD 111232-b) are low-mass Jupiter-like planets in eccentric intermediate- and long-period orbits. On the other hand, the companion to HD 43848 appears to be a long-period brown dwarf in a very eccentric orbit. © 2009. The American Astronomical Society. All rights reserved.

Más información

Título según WOS: LOW-MASS COMPANIONS FOR FIVE SOLAR-TYPE STARS FROM THE MAGELLAN PLANET SEARCH PROGRAM
Título según SCOPUS: Low-mass companions for five solar-type stars from the Magellan planet search program
Título de la Revista: ASTROPHYSICAL JOURNAL
Volumen: 693
Número: 2
Editorial: IOP PUBLISHING LTD
Fecha de publicación: 2009
Página de inicio: 1424
Página final: 1430
Idioma: English
URL: http://stacks.iop.org/0004-637X/693/i=2/a=1424?key=crossref.222eec3ee40cafdf421a286a8cc5d421
DOI:

10.1088/0004-637X/693/2/1424

Notas: ISI, SCOPUS