X-ray absorption in active galaxies - Constraints on the broad-line emitting regions

Details X-ray absorption in active galaxies - Constraints on the broad-line emitting regions X-ray absorption in active galaxies - Constraints on the broad-line emitting regions

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...303...87r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 303, April 1, 1986, p. 87-93.

Astronomy and Astrophysics

Astrophysics

26

Absorption Spectra, Active Galaxies, Constraints, Emission Spectra, Galactic Nuclei, Spectral Line Width, X Ray Spectra, Active Galactic Nuclei, Astronomical Spectroscopy, Gas Temperature, Quasars

Scientific paper

X-ray observations of intrinsic absorption in active galactic nuclei (AGN) provide direct information concerning the amount and physical properties of cool (unionized) material along the line of sight. The X-ray absorption is assumed to occur in the broad-line emitting gas, so that the X-ray data can be used to probe the conditions in the broad-line regions of AGN. The results of Einstein Observatory solid state spectrometer observations are used to derive detailed physical constraints concerning the geometry of the broad-line region. Physical implications of these constraints are also discussed.

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