The Age and Progenitor Mass of Sirius B

  title={The Age and Progenitor Mass of Sirius B},
  author={J. Liebert and P. Young and D. Arnett and J. Holberg and Kurtis A. Williams Steward Observatory and Los Alamos National Laboratory and Lunar and Planetary Laboratory},
  journal={The Astrophysical Journal},
  • J. Liebert, P. Young, +5 authors Planetary Laboratory
  • Published 2005
  • Physics
  • The Astrophysical Journal
  • The Sirius AB binary system has masses that are well determined from many decades of astrometric measurements. Because of the well-measured radius and luminosity of Sirius A, we employed the TYCHO stellar evolution code to determine the age of the Sirius AB binary system accurately, at 225-250 Myr. Note that this fit requires the assumption of solar abundance and the use of the new Asplund et al. primordial solar metallicity. No fit to Sirius A's position is possible using the old Grevesse… CONTINUE READING
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