XMM-Newton Proposal 03059904

Details XMM-Newton Proposal 03059904 XMM-Newton Proposal 03059904

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..197m&link_type=abstract

XMM-Newton Proposal ID #03059904

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Fbqs J075800.0+, Fbqs J083535.8+, H 1137-127, Fbqs J112736.3+, Xmm-Newton Proposal 03059904

Scientific paper

The unusual properties of Narrow-line Seyfert 1 galaxies (NLS1s) are thought to result from a higher accretion rate relative to Eddington than broad-line Seyferts. Luminous NLS1s should have the highest accretion rates of all. With our recent study, several X-ray weak objects were found, and it is suggested that X-ray weakness may occur more frequently among more luminous regime. To investigate the nature of X-ray weak objects, we propose short observations of four optically-luminous X-ray--weak NLS1s with XMM-Newton.

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