| タイトル | An Evolving Trio of Hybrid Stars: C 111 |
| 本文（外部サイト） | http://hdl.handle.net/2060/20040085479 |
| 著者（英） | Oliversen, Ronald; Dupree, Andrea K. |
| 著者所属（英） | Smithsonian Astrophysical Observatory |
| 発行日 | 2004-07-01 |
| 言語 | eng |
| 内容記述 | Our goal is to understand the behavior of the outer atmosphere in this intermediate stage to create a comprehensive picture of atmospheric evolution. In the hybrid phase, the large-scale magnetic dynamo activity decays and hydrodynamic processes assume importance. Some hot plasma is still confined close to the star by magnetic loops, yet the confining field is breaking open, the atmosphere can escape through these open field lines, and the diffuse corona may be warm. There may well be a more extended and variable transition process. It remains for FUSE to identify the controlling parameters of the hybrid stars. It shows the positions of our 3 targets in the color-magnitude diagram where it is seen that they are at the extreme end of the hybrid region. Originally we had been awarded the hybrid star Iota Aur, but due to newly imposed pointing constraints of FUSE, that target was not accessible. And so we substituted Iota Dra, a giant of mass similar to our other targets but less evolved. In addition, Iota Dra was recently found to harbor a sub-stellar objects, possibly a planet, and so it could reveal the stellar environment of the planet. This substitution was accepted. |
| NASA分類 | Astrophysics |
| 権利 | No Copyright |
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