An ellipsoidal modulation in Nova Ophiuchi 1977 (=H1705-25=V2107 Oph)

Bibcode
1995MNRAS.274L..46M
Martin, A. C.; Casares, J.; Charles, P. A.; van der Hooft, F.; van Paradijs, J.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 274, Issue 2, pp. L46-L50.

Advertised on:
5
1995
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
5
IAC number of authors
0
Citations
31
Refereed citations
26
Description
We report the detection of an orbital, ellipsoidal modulation at a period of 16.8h for V2107 Oph (Nova Ophiuchi 1977, H1705-25), from R-band photometry. From this period and the observed magnitude, constraints on the distance are calculated (2.0-8.4 kpc), which are consistent with that obtained previously from X-ray observations (3kpc). By comparison with other soft X-ray transients we suggest q>=5, and, combining this with an ellipsoidal fit to the data, we obtain an orbital inclination in the range 48 deg-51 deg.
Type
Refereed
Accretion

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