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Communication Dans Un Congrès Année : 2012

A new method based on Markov chains for deriving SB2 orbits directly from their spectra

J.-B. Salomon
  • Fonction : Auteur
Rodrigo A. Ibata
  • Fonction : Auteur
P. Guillout
  • Fonction : Auteur
J.-L. Halbwachs
  • Fonction : Auteur
Frédéric Arenou
  • Fonction : Auteur
Benoît Famaey
  • Fonction : Auteur
Tsevi Mazeh
  • Fonction : Auteur
Dimitri Pourbaix
  • Fonction : Auteur
L. Tal-Or
  • Fonction : Auteur

Résumé

We present a new method to derive orbital elements of double-lined spectroscopic binaries (SB2). The aim is to have accurate orbital parameters of a selection of SB2 in order to prepare the exploitation of astrometric Gaia observations. Combined with our results, they should allow one to measure the mass of each star with a precision of better than 1 %. The new method presented here consists of using the spectra at all epochs simultaneously to derive the orbital elements without templates. It is based on a Markov chain including a new method for disentangling the spectra.

Dates et versions

hal-03802981 , version 1 (06-10-2022)

Identifiants

Citer

J.-B. Salomon, Rodrigo A. Ibata, P. Guillout, J.-L. Halbwachs, Frédéric Arenou, et al.. A new method based on Markov chains for deriving SB2 orbits directly from their spectra. SF2A-2012: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, Jun 2012, Nice, France, France. pp.117-120. ⟨hal-03802981⟩
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