Two jupiter-mass planets orbiting HD 154672 and HD 205739

Mercedes López-Morales, R. Paul Butler, Debra A. Fischer, Dante Minniti, Stephen A. Shectman, Genya Takeda, Fred C. Adams, Jason T. Wright, Pamela Arriagada

Resultado de la investigación: Contribución a una revistaArtículo

12 Citas (Scopus)

Resumen

We report the detection of the first two planets from the N2K Doppler planet search program at the Magellan telescopes. The first planet has a mass of Msin i = 4.96 M Jup and orbits the G3 IV star HD 154672 with an orbital period of 163.9 days. The second planet orbits the F7 V star HD 205739 with an orbital period of 279.8 days and has a mass of Msin i = 1.37 M Jup. Both planets are in eccentric orbits, with eccentricities e = 0.61 and e = 0.27, respectively. Both stars are metal rich and appear to be chromospherically inactive, based on inspection of their Ca II H and K lines. Finally, the best Keplerian model fit to HD 205739b shows a trend of 0.0649 m s-1 day-1, suggesting the presence of an additional outer body in that system.

Idioma originalInglés
Páginas (desde-hasta)1901-1905
Número de páginas5
PublicaciónAstronomical Journal
Volumen136
N.º5
DOI
EstadoPublicada - 1 nov 2008

Áreas temáticas de ASJC Scopus

  • Astronomía y astrofísica
  • Ciencias planetarias y espacial

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    López-Morales, M., Butler, R. P., Fischer, D. A., Minniti, D., Shectman, S. A., Takeda, G., Adams, F. C., Wright, J. T., & Arriagada, P. (2008). Two jupiter-mass planets orbiting HD 154672 and HD 205739. Astronomical Journal, 136(5), 1901-1905. https://doi.org/10.1088/0004-6256/136/5/1901