RASS Detected Narrow-Line Seyfert 1 Galaxies in the SDSS

Details RASS Detected Narrow-Line Seyfert 1 Galaxies in the SDSS RASS Detected Narrow-Line Seyfert 1 Galaxies in the SDSS

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..311..273g&link_type=abstract

AGN Physics with the Sloan Digital Sky Survey, Proceedings of a conference held in Princeton, NJ, USA, 27-31 July 2003, Edited b

Physics

Scientific paper

We present initial results of a study comparing SDSS NLS1 and BLS1 which have also been detected in the RASS. An examination of the SDSS colors and magnitudes show that NLS1 and BLS1 are very similar, further emphasizing that these objects are fundamentally the same; however, there are subtle differences. For example, NLS1 are slightly brighter and bluer than typical BLS1. A potentially interesting result is the relation between the X-ray photon index and the SDSS magnitudes. There is a possibility that soft X-ray Seyferts may be intrinsically fainter than their harder counterparts. This relation still requires further investigation, but, it may be indicative of a smaller mass black hole in these lower luminosity NLS1.

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