Spectroscopic binary mass determination using relativity

Shay Zucker, Tal Alexander

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


High-precision radial-velocity techniques, which enabled the detection of extra-solar planets, are now sensitive to the lowest-order relativistic effects in the data of spectroscopic binary stars (SBs). We show how these effects can be used to derive the absolute masses of the components of eclipsing single-lined SBs and double-lined SBs from Doppler measurements alone. High-precision stellar spectroscopy can thus substantially increase the number of measured stellar masses, thereby improving the mass-radius and mass-luminosity calibrations.

Original languageEnglish
Title of host publicationRelativity in Fundamental Astronomy
Subtitle of host publicationDynamics, Reference Frames, and Data Analysis
EditorsSergei A. Klioner, Michael H. Soffel, P. Kenneth Seidelmann
Number of pages5
StatePublished - Apr 2009

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • Binaries
  • Celestial mechanics
  • Close
  • Methods: data analysis
  • Radial velocities
  • Relativity
  • Spectroscopic
  • Techniques


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