RX J1313.2-3259, a long-period Polar discovered with ROSAT
| dc.creator | Thomas, H. -C. | |
| dc.creator | Beuermann, K. | |
| dc.creator | Burwitz, V. | |
| dc.creator | Reinsch, K. | |
| dc.creator | Schwope, A. D. | |
| dc.date | 1999-11-11 | |
| dc.date.accessioned | 2026-07-07T02:34:20Z | |
| dc.date.available | 2026-07-07T02:34:20Z | |
| dc.description | We report observations of a new AM Herculis binary identified as the optical counterpart of the X-ray source RX J1313.2-3259, detected during the ROSAT All-Sky Survey (RASS). It has an orbital period of 251 min and is strongly modulated at optical wavelengths. The long-term behavior is characterized by a pronounced variation in X-rays between the RASS and two subsequent pointings (decrease by a factor 40 in count rate) and by moderate changes in the optical brightness (up to a factor 5). The X-ray spectrum is dominated by a soft quasi-blackbody component, with a smaller contribution from thermal bremsstrahlung. Measurements of high circular polarization confirm its classification as a Polar with a magnetic field strength of 56 MG. The average visual magnitude of RX J1313.2-3259 is V = 16 mag, for its distance we get 200 pc. | |
| dc.description | 10 pages, 10 figures, to be published in Astronomy and Astrophysics | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9911200 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9911200 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15208 | |
| dc.subject | Astrophysics | |
| dc.title | RX J1313.2-3259, a long-period Polar discovered with ROSAT | |
| dc.type | text |