An ellipsoidal modulation in X-ray Nova Vela 1993 ( = GRS 1009 — 45) | Zendy

T. Shahbaz | Zendy; F. van der Hooft | Zendy; P. A. Charles | Zendy; J. Casares | Zendy; J. van Paradijs | Zendy

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An ellipsoidal modulation in X-ray Nova Vela 1993 ( = GRS 1009 — 45)

Author(s) -

T. Shahbaz,

F. van der Hooft,

P. A. Charles,

J. Casares,

J. van Paradijs

Publication year - 1996

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/282.4.l47

Subject(s) - physics , vela , astrophysics , orbital period , amplitude , photometry (optics) , roche lobe , orbital inclination , cataclysmic variable star , nova (rocket) , spectral line , binary star , astronomy , binary number , stars , optics , white dwarf , pulsar , engineering , arithmetic , mathematics , aeronautics

We present the first optical observations of the soft X-ray transient Nova Vela 1993, taken during quiescence in 1995 and 1996. From the R-band photometry with a mean magnitude of 20.6, we find an orbital, ellipsoidal modulation with an amplitude of 0.23 mag at a period of 6.86 ± 0.12 h. The optical spectra show only broad double-peaked Hα emission presumably arising from the accretion disc. We es...

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