Outbursts of selected dwarf novas and postnovas |
| |
| Authors: | E P Pavlenko S Yu Shugarov D N Baklanova N A Katysheva |
| |
| Institution: | (1) Crimean Astrophysical Observatory, pos. Nauchnyi, 98409 Crimea, Ukraine;(2) Sternberg Astronomical Institute, Moscow, Russia |
| |
| Abstract: | Observations are presented of selected cataclysmic variables (the dwarf novas V1504 Cyg and GO Com and the postnovas Q Cyg, V446 Her, and DI Lac) carried out at the Crimean Astrophysical Observatory and the Crimean Laboratory of the Sternberg Astronomical Institute in 1995–2007. The outburst parameters and the behavior of these objects on the “magnitude (V)-color (V-R)” diagram are described. The tracks of postnova outbursts on this diagram are similar to the dwarf-nova behavior. On average, all the studied systems show a break on the “brightness-color” dependence. The color V-R before the break increases more weakly than after it or does not increase at all. |
| |
| Keywords: | dwarf novas active postnovas V1504 Cyg GO Com V446 Her Q Cyg DI Lac |
| 本文献已被 SpringerLink 等数据库收录！ |
