Ultrasoft narrow-line Seyfert 1 galaxies and X-ray surveys
نویسندگان
چکیده
منابع مشابه
Ultrasoft Narrow - Line Seyfert 1 Galaxies and X - ray Surveys
We describe how recent X-ray surveys have led to advances in the understanding of ultrasoft narrow-line Seyfert 1 galaxies. The number of known ultrasoft narrow-line Seyfert 1s has increased greatly in recent years due to X-ray surveys, and it is now possible to obtain high quality 0.1–10 keV spectral and variability measurements for a large number of these galaxies. We generalize some of the c...
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Declaration I hereby declare that my thesis entitled " X-ray Spectral and Timing Properties of Narrow Line Seyfert 1 Galaxies " , is not substantially the same as any I have submitted for a degree or diploma or other qualification at any other University. I further declare that no part of my thesis has already been, or is being concurrently submitted, for any such degree, diploma or other quali...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten: News in Astronomy and Astrophysics
سال: 1998
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.2123190104