X-Ray and UV Monitoring of the Seyfert 1.5 Galaxy Markarian 817
نویسندگان
چکیده
منابع مشابه
X - ray absorption in the strong FeII narrow - line Seyfert 1 galaxy Markarian 507
We present results from spectral analysis of ASCA data on the strong Feii narrow-line Seyfert 1 galaxy Mrk 507. This galaxy was found to have an exceptionally flat ROSAT spectrum among the narrow-line Seyfert 1 galaxies (NLS1s) studied by Boller, Brandt & Fink (1996). The ASCA spectrum however shows a clear absorption feature in the energy band below 2 keV, which partly accounts for the flat sp...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2019
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aaeff9