W Ursae Majoris Contact Binary Variables as X-Ray Sources
| Autor: | Kaushar Sanchawala, M. C. Chiou, Wen Ping Chen |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Physics
Astrophysics::High Energy Astrophysical Phenomena media_common.quotation_subject Physics::Physics Education Astronomy and Astrophysics Contact binary Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Star (graph theory) Square (algebra) Luminosity Stars Space and Planetary Science Sky Astrophysics::Solar and Stellar Astrophysics Variable star Astrophysics::Galaxy Astrophysics media_common |
| Zdroj: | The Astronomical Journal. 131:990-993 |
| ISSN: | 1538-3881 0004-6256 |
| Popis: | We present cross-identification of archived X-ray point sources with W UMa variable stars found in the All-Sky Automated Survey (ASAS). In a surveyed sky area of 300 square degrees of ASAS, 36 W UMa stars have been found associated with X-ray emission. We compute the distances of these W UMa systems and hence their X-ray luminosities. Our data support the "supersaturation" phenomenon seen in these fast rotators, namely that the faster a W UMa star rotates, the weaker its X-ray luminosity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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