Pyrzas, S., Gänsicke, B. T. (Boris T.), Thorstensen, J. R., Aungwerojwit, A. (Amornrat), Boyd, D., Brady, S., Casares, J., Hickman, R. D. G. (Richard D. G.), Marsh, T. R., Miller, I., Ögmen, Y., Pietz, J., Poyner, G., Rodríguez-Gil, P. and Staels, B. (2012) HS 2325 + 8205 —an ideal laboratory for accretion disk physics. Publications of the Astronomical Society of the Pacific, Vol.124 (No.913). pp. 204-211. doi:10.1086/664959 ISSN 0004-6280.

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Abstract

We identify HS 2325 + 8205 as an eclipsing, frequently outbursting, dwarf nova with an orbital period of = 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 = = 237 ± 28 km s and = 145 ± 9 km s , 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

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Publications of the Astronomical Society of the Pacific
Publisher:	University of Chicago Press
ISSN:	0004-6280
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Vol.124
Number:	No.913
Page Range:	pp. 204-211
DOI:	10.1086/664959
Status:	Peer Reviewed
Publication Status:	Published

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