Comparison of Gaia and asteroseismic distances


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Yildiz M. , Orhan Z. C. , Ortel S., ROTH M.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol.470, no.1, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 470 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.1093/mnrasl/slx071
  • Title of Journal : MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Keywords: stars: distance, stars: evolution, stars: fundamental parameters, stars: interiors, stars: late-type, stars: oscillations, STARS

Abstract

Asteroseismology provides fundamental properties (mass, radius and effective temperature) of solar-like oscillating stars using so-called scaling relations. These properties allow the computation of the asteroseismic distance of stars. We compare the asteroseismic distances with the recently released Gaia distances for 74 stars studied in Yildiz et al. There is a very good agreement between these two distances; for 64 of these stars, the difference is less than 10 per cent. However, a systematic difference is seen if we use the effective temperature obtained by spectroscopic methods; the Gaia distances are about 5 per cent greater than the asteroseismic distances.