Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-09-02
Astron.Astrophys. 395 (2002) 557-562
Astronomy and Astrophysics
Astrophysics
4 pages, 5 figures, accepted for publication in Astronomy and Astrophysics
Scientific paper
10.1051/0004-6361:20021278
We present a spectroscopic study of the long-recurrence-time dwarf nova V592 Herculis based on observations obtained during its August 1998 superoutburst. From the analysis of the radial velocities of the Halpha emission line we find a most likely orbital period of 85.5 +- 0.4 minutes, but the 91.2 +- 0.6 minutes alias cannot be completely discarded. Both periods imply a very small period excess and supports the brown-dwarf like nature of the secondary star.
Augusteijn Th.
Duerbeck Hilman W.
Gallardo R.
Mennickent Ronald E.
Tappert Claus
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