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x-ray nova |
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x-ray nova [′eks ‚rā ′nō·və] (astronomy) An x-ray source which appears suddenly in the sky, dramatically increases in intensity over a few days, and then decays away with a lifetime of several months. Also known as transient x-ray source. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Narayan's team used the Japanese X-ray satellite ASCA to observe V404 Cygni, an X-ray nova known to contain a black hole (SN: 2/15/92, p. Known as GRO J1655-40, this X-ray nova ranked as one of the three brightest X-ray sources in the sky for 2 weeks. Della Valle and Jarvis say these observations suggest that the new identified object represents an unusual type of exploding star called an X-ray nova, which |
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