| タイトル | Acyclic High-Energy Variability in Eta Carinae and WR 140 |
| 本文（外部サイト） | http://hdl.handle.net/2060/20120008690 |
| 著者（英） | Corcoran, Michael F. |
| 著者所属（英） | Universities Space Research Association |
| 発行日 | 2012-01-01 |
| 言語 | eng |
| 内容記述 | Eta Carinae and WR 140 are similar long-period colliding wind binaries in which X-ray emission is produced by a strong shock due to the collision of the powerful stellar winds. The change in the orientation and density of this shock as the stars revolve in their orbits influences the X-ray flux and spectrum in a phase dependent way. Monitoring observations with RXTE and other X-ray satellite observatories since the 1990s have detailed this variability but have also shown significant deviations from strict phase dependence (short-term brightness changes or "flares", and cyc1e-to-cyc1e average flux differences). We examine these acylic variations in Eta Car and WR 140 and discuss what they tell us about the stability of the wind-wind collision shock. |
| NASA分類 | Astrophysics |
| レポートNO | GSFC.JA.5950.2012 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
