Low-mass companions for five solar-type stars from the Magellan planet search program

Dante Minniti, R. Paul Butler, Mercedes López-Morales, Stephen A. Shectman, Fred C. Adams, Pamela Arriagada, Alan P. Boss, John E. Chambers

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

20 Citas (Scopus)

Resumen

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.

Idioma originalInglés
Páginas (desde-hasta)1424-1430
Número de páginas7
PublicaciónAstrophysical Journal
Volumen693
N.º2
DOI
EstadoPublicada - 10 mar 2009

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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