Computer Science
Scientific paper
Oct 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ncimc..16..663c&link_type=abstract
Nuovo Cimento C, Vol. 16, N. 5, p. 663 - 667
Computer Science
Black Holes: Masses, Black Holes: Seyfert Galaxies, Black Holes: Accretion
Scientific paper
By using a fully relativistic model for the spectral line produced by a Keplerian disk orbiting a Schwarzschild black hole, the authors study the temporal behaviour of the line intensity in response to a continuum variation at an extended central source. They compare their results with the observed properties of the Seyfert galaxy NGC 6814, whose X-ray flux has been observed to decrease by a factor of two in ≡50 s, while the iron line intensity variations lag continuum variations by 250 s, at the most. Taking the stationary values of the iron line centroid energy and width, and assuming that the line comes from high-ionisation stages of iron the authors derive that the inner radius of the line-emitting region is between 6 and 30 rg (rg = GM/c2), the inclination is ≤40°, while the mass of the central object is constrained to 8×104L43 < M < 3.9×106Msun (L43 is the accretion luminosity in units of 1043erg s-1).
Campana Sergio
Stella Luigi
No associations
LandOfFree
Estimate of the black-hole mass in NGC 6814 from a relativistic accretion disk scenario. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Estimate of the black-hole mass in NGC 6814 from a relativistic accretion disk scenario., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Estimate of the black-hole mass in NGC 6814 from a relativistic accretion disk scenario. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1329188