V1159 Orionis - A dwarf nova with very short outburst cycle

Details V1159 Orionis - A dwarf nova with very short outburst cycle V1159 Orionis - A dwarf nova with very short outburst cycle

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259..198j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 1, p. 198-204.

Physics

14

Binary Stars, Dwarf Novae, Stellar Physics, Stellar Spectrophotometry, Cataclysmic Variables, Ubv Spectra, White Dwarf Stars

Scientific paper

We have discovered that V1159 Ori is a short orbital period dwarf nova with outbursts characterized by a recurrence time of about four days and amplitude roughly 1.5 magnitudes. We present UBVRI photometric measurements that cover both bright and faint states of the variable together with simultaneous spectroscopic coverage of an outburst from minimum to maximum along three nights. The low semi-amplitude of the H-alpha radial velocity curve, together with other spectroscopic constraints, indicates a low inclination for the system, and a probable mass of 0.8 solar mass for the white dwarf.

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