Bibcode
DOI
Pyrzas, S.; Gänsicke, B. T.; Thorstensen, J. R.; Aungwerojwit, A.; Boyd, D.; Brady, S.; Casares, J.; Hickman, R. D. G.; Marsh, T. R.; Miller, I.; Ögmen, Y.; Pietz, J.; Poyner, G.; Rodríguez-Gil, P.; Staels, B.
Bibliographical reference
Publications of the Astronomical Society of the Pacific, Volume 124, issue 913, pp.204-211
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3
2012
Citations
8
Refereed citations
8
Description
We identify HS 2325+8205 as an eclipsing, frequently outbursting, dwarf
nova with an orbital period of Porb = 279.841731(5) minutes.
Spectroscopic observations are used to derive the radial velocity curve
of the secondary star from absorption features and also from the
Hα emission lines, originating from the accretion disk, yielding
Ksec = Kabs = 237 ± 28 km s-1
and Kem = 145 ± 9 km s-1, respectively. The
distance to the system is calculated to be 400(+200,-140) pc. A
photometric monitoring campaign reveals an outburst recurrence time of
˜12--14 days. The combination of magnitude range (17--14 mag),
high declination, and eclipsing nature and frequency of outbursts makes
HS 2325+8205 the ideal system for ""real-time"" studies of the accretion
disk evolution and behavior in dwarf nova outbursts.
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Pablo
Rodríguez Gil