A long XMM-Newton observation of an extreme narrow-line Seyfert 1: PG 1244+026
(2013)
Journal Article
We explore the origin of the strong soft X-ray excess in narrow-line Seyfert 1 galaxies using spectral-timing information from a 120 ks XMM–Newton observation of PG 1244+026. Spectral fitting alone cannot distinguish between a true additional soft X-... Read More about A long XMM-Newton observation of an extreme narrow-line Seyfert 1: PG 1244+026.