X-ray transient sources

http://astrothesaurus.org/uat/1852

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X-ray transient
dcterms created equal to or less than 2017-03-20T21:13:51.000Zequal to or more than 2017-03-20T21:13:51.000Z
dcterms modified equal to or less than 2020-11-04T21:03:21.663Zequal to or more than 2020-11-04T21:03:21.663Z
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http://astrothesaurus.org/uat/1822 original
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1852 original
http://astrothesaurus.org/uat/1851 original
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1852 original
definition An X-ray source that enhances its emission well above its usual level for a period typically longer than a week. Recurrences can be periodic or aperiodic, but there is no obvious correlation between recurrence time and the luminosity amplitude of the outburst. X-ray transients seem to be divided into two classes: those associated with high-mass X-ray binary (HMXB) stars and those associated with low-mass X-ray binary (LMXB) stars. The HMXBs contain a neutron star or black hole paired with a massive star. Often, the stellar companion is a Be star, Be star, which sometimes sheds material from its equatorial region. In these systems, the transient event is characterized by having more higher energy X-rays in the spectrum. The LMXBs contain a neutron star or black hole orbiting around a cooler, low-mass star. These transient events often generate more lower-energy X-rays.
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http://astrothesaurus.org/uat/1813 original
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1852 original
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contributor AAS_Frey.Katie_Admin original
creator AAS_Frey.Katie original