Rapid variability of the iron fluorescence line from the Seyfert 1 galaxy NGC6814

Details Rapid variability of the iron fluorescence line from the Seyfert 1 galaxy NGC6814 Rapid variability of the iron fluorescence line from the Seyfert 1 galaxy NGC6814

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.345..786k&link_type=abstract

Nature (ISSN 0028-0836), vol. 345, June 28, 1990, p. 786-788.

Astronomy and Astrophysics

Astronomy

74

Active Galactic Nuclei, Black Holes (Astronomy), Line Spectra, Seyfert Galaxies, Stellar Mass Accretion, X Ray Fluorescence, Cold Gas, Energy Distribution, Iron, Variability

Scientific paper

NGC6814, one of the faster X-ray-variable AGN, has been observed with the Large Area Counters aboard the Ginga satellite in order to obtain data on the variability of the iron fluorescence line and thus to constrain the distribution of cold gas from which the line originates. A positive correlation measured between the variability of the iron-line flux and the continuum emission suggests an upper limit of 10 to the 14th cm for the size of the ion reprocessing region.

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