Stellar astrophysics with a dispersed fourier transform spectrograph. II. Orbits of double-lined spectroscopic binaries

Bradford B. Behr, Andrew T. Cenko, Arsen R. Hajian, Robert S. McMillan, Marc Murison, Jeff Meade, Robert Hindsley

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We present orbital parameters for six double-lined spectroscopic binaries (ι Pegasi, ω Draconis, 12 Boötis, V1143 Cygni, β Aurigae, and Mizar A) and two double-lined triple star systems (κ Pegasi and η Virginis). The orbital fits are based upon high-precision radial velocity (RV) observations made with a dispersed Fourier Transform Spectrograph, or dFTS, a new instrument that combines interferometric and dispersive elements. For some of the double-lined binaries with known inclination angles, the quality of our RV data permits us to determine the masses M 1 and M 2 of the stellar components with relative errors as small as 0.2%.

Original languageEnglish (US)
Article number6
JournalAstronomical Journal
Volume142
Issue number1
DOIs
StatePublished - Jul 2011

Keywords

  • binaries: spectroscopic
  • instrumentation: spectrographs
  • techniques: radial velocities

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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