Multiplicity of galactic cepheids and rr lyrae stars from gaia dr2 – i. binarity from proper motion anomaly

HIGHLIGHTS

• who: Kervella Pierre et al. from the Smithsonian Astrophysical, MS, Garden Street, Cambridge, MA, USA Warsaw University, AlUjazdowskie, Warsaw, Poland have published the research: Multiplicity of Galactic Cepheids and RR Lyrae stars from Gaia DR2 - I. Binarity from proper motion anomaly, in the Journal: (JOURNAL) of 18/03/1993
• what: For 28 binary CCs the authors determine the companion mass by combining their spectroscopic orbital parameters and astrometric PMa. The authors determine that the binary fraction of CCs is likely above 80% while that of RRLs is at least 7%. The aim of this work . . .
  

   

  

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