Variability of the relativistic iron K-line in NGC 3516

Details Variability of the relativistic iron K-line in NGC 3516 Variability of the relativistic iron K-line in NGC 3516

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..538c&link_type=abstract

X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G

Astronomy and Astrophysics

Astronomy

Active And Peculiar Galaxies And Related Systems, Infall, Accretion, And Accretion Disks, X-Ray Sources, X-Ray Bursts

Scientific paper

A continuous five day ASCA observation of the Seyfert 1 galaxy NGC 3516 (Nandra et al., 1999) has shown that the iron K-line profile is variable. Nandra et al. fitted disk line models to the individual spectra and were not able to identify a single parameter which accounts for the changes in the profile. We show here that the variability can be interpreted in terms of a variable free-form fit to the radial emissivity profile of the accretion disk. .

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