Gaseous Streaming Motions Around the Nucleus of M 81
نویسندگان
چکیده
منابع مشابه
X - ray spectral variability of the nucleus of M 81
We have analysed the soft X-ray emission from the nuclear source of the nearby spiral galaxy M 81, using the available data collected with ROSAT, ASCA, BeppoSAX and Chandra. The source flux is highly variable, showing (sometimes dramatic: a factor of 4 in 20 days) variability at different timescales, from 2 days to 4 years, and in particular a steady increase of the flux by a factor of 2 over 4...
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ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2009
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921310006654