Five long-period extrasolar planets in eccentric orbits from the magellan planet search program

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

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Five new planets orbiting G and K dwarfs have emerged from the Magellan velocity survey. These companions are Jovian-mass planets in eccentric (e ≥ 0.24) intermediate- and long-period orbits. HD 86226b orbits a solar metallicity G2 dwarf. The MP sin i mass of the planet is 1.5 M JUP, the semimajor axis is 2.6AU, and the eccentricity is 0.73. HD 129445b orbits a metal-rich G6 dwarf. The minimum mass of the planet is MP sin i = 1.6 M JUP, the semimajor axis is 2.9AU, and the eccentricity is 0.70. HD 164604b orbits a K2 dwarf. The MP sin i mass is 2.7 M JUP, the semimajor axis is 1.3AU, and the eccentricity is 0.24. HD 175167b orbits a metal-rich G5 star. The MP sin i mass is 7.8 M JUP, the semimajor axis is 2.4AU, and the eccentricity is 0.54. HD 152079b orbits a G6 dwarf. The MP sin i mass of the planet is 3 M JUP, the semimajor axis is 3.2AU, and the eccentricity is 0.60.

Original languageEnglish
Pages (from-to)1229-1235
Number of pages7
JournalAstrophysical Journal
Volume711
Issue number2
DOIs
Publication statusPublished - 2010

Keywords

  • Planetary systems
  • Stars: individual (HD 86226, HD 129445, HD 164604, HD 175167, HD 152079)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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