Physical parameters of eclipsing binary components, discovered by STEREO

Maya Belcheva, Haralambi Markov, Zlatan Tsvetanov, Ilian Iliev, Ivanka Stateva

Research output: Contribution to journalArticle

1 Citation (Scopus)


Using photometric observations made with the Heliospheric Imager 1 onboard NASA’s STEREO mission a list of eclipsing binary systems was prepared which can be observed with the Coude spectrograph of the National Astronomical Observatory of Bulgaria, Smolyan, Bulgaria. The epoch and orbital period of each system were determined. The full complement of data consist of light curves extracted from STEREO HI-1 cameras photometry, wide coverage Echelle spectra obtained with the ARCES spectrograph at Apache Point Observatory, New Mexico, USA, for stellar characterization and Coude spectra with R ≈ 15000 and R ≈ 30000 obtained at NAO Rozhen for radial velocity curves. Here we present preliminary results from applying the Wilson-Devinney models for the determination of some physical parameters of three SB2 eclipsing binary systems - HD 103694, HD 185990, and HD 214688.

Original languageEnglish
Pages (from-to)28-32
Number of pages5
JournalBulgarian Astronomical Journal
Publication statusPublished - 2015
Externally publishedYes



  • Stars: binaries: eclipsing
  • Stars: binaries: spectroscopic
  • Stars: individual: HD 103694
  • Stars: individual: HD 185990
  • Stars: individual: HD 214688

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this