On the apsidal motion of BP Vulpeculae

Sz Csizmadia, E. Illés-Almár, T. Borkovits

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

BP Vulpeculae is a bright eclipsing binary system showing apsidal motion. It was found in an earlier study that it shows retrograde apsidal motion which contradicts theory. In this paper we present the first BV light curve of the system and its light curve solution as well as seven new times of the minima from the years 1959-1963. This way we could expanded the baseline of the investigation to five decades. Based on this longer baseline we concluded that the apsidal motion is prograde agreeing with the theoretical expectations and its period is about 365 years and the determined internal structure constant is close to the theoretically expected one.

Original languageEnglish
Pages (from-to)413-428
Number of pages16
JournalNew Astronomy
Volume14
Issue number4
DOIs
Publication statusPublished - May 2009

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Keywords

  • Stars: binaries: eclipsing

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics
  • Instrumentation

Cite this

On the apsidal motion of BP Vulpeculae. / Csizmadia, Sz; Illés-Almár, E.; Borkovits, T.

In: New Astronomy, Vol. 14, No. 4, 05.2009, p. 413-428.

Research output: Contribution to journalArticle

Csizmadia, Sz ; Illés-Almár, E. ; Borkovits, T. / On the apsidal motion of BP Vulpeculae. In: New Astronomy. 2009 ; Vol. 14, No. 4. pp. 413-428.
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