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HS 2325 + 8205 —an ideal laboratory for accretion disk physics
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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. ISSN 0004-6280
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Official URL: http://dx.doi.org/10.1086/664959
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 > Physics |
| Journal or Publication Title: | Publications of the Astronomical Society of the Pacific |
| Publisher: | University of Chicago Press |
| ISSN: | 0004-6280 |
| Date: | 2012 |
| Volume: | Vol.124 |
| Number: | No.913 |
| Page Range: | pp. 204-211 |
| Identification Number: | 10.1086/664959 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/48785 |
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