A Hot Helium Plasma in the Galactic Center Region
نویسندگان
چکیده
منابع مشابه
0 v 1 23 A ug 2 00 5 A Hot Helium Plasma in the Galactic Center Region
Recent X-ray observations by the space mission Chandra confirmed the astonishing evidence for a diffuse, hot, thermal plasma at a temperature of ∼ 9. 10 7 K (∼ 8 keV) found by previous surveys to extend over a few hundred parsecs in the Galactic Centre region. This plasma coexists with the usual components of the interstellar medium such as cold molecular clouds and a soft (0.8 keV) component p...
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In addition to lines originating in a soft phase at ∼ 0.8 keV and to cold molecular clouds, the X-ray spectra from the Galactic center region also exhibit properties similar to those of a diffuse, thin, very hot plasma at 8 keV on a scale of hundreds of parsecs. This phase is surprising for more than one reason. First, such a hot plasma should not be bound to the Galactic plane and the power ne...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2005
ISSN: 0004-637X,1538-4357
DOI: 10.1086/497139