Correlated hard X ray and UV variability in NGC 5548

Details Correlated hard X ray and UV variability in NGC 5548 Correlated hard X ray and UV variability in NGC 5548

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992xrea.conf...66c&link_type=abstract

In MPI für Extraterrestrische Physik, X Ray Emission from Active Galactic Nuclei and the Cosmic X Ray Background p 66-73 (SEE N9

Astronomy and Astrophysics

Astronomy

Cosmic X Rays, Seyfert Galaxies, Ultraviolet Radiation, X Ray Astronomy, Correlation, Emission Spectra, Light Curve, Line Spectra, Radiant Flux Density, Variability, X Ray Fluorescence

Scientific paper

Observations of the nucleus of NGC5548 made at 11 different epochs during May - July 1990, in low resolution mode (1000 km/s) and through large apertures (10 by 20 inches) of the International Ultraviolet Explorer (IUE) spectrographs, are discussed. The patterns of variability are considered. Figures showing the following are given: light curves of the continuum in the X-ray and UV bands, together with the light curves of the strongest emission lines; the 2 to 10 KeV X-ray flux as a function of the 1350 A continuum for the 11 epochs of simultaneous X-ray and UV observations; the cross correlation and discrete correlation of F 2 to 10 with F1350. Implications of the findings are discussed.

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