We report the first pointed X-ray observation, made by ASCA, of the nearby Seyfert 2 galaxy in Circinus. The spectrum consists of a very prominent (EW similar to 2 keV) fluorescent 6.4-keV iron line, a very flat continuum (photon spectral index less than 1) and other lines, including one at similar to 7 keV that is probably due, at least in part, to iron K beta fluorescent emission. The spectrum is consistent with Compton scattering and fluorescent emission from cold matter illuminated by an obscured active nucleus.

Matt, G., Fiore, F., Perola, G.c., Piro, L., Fink, H.h., Grandi, P., et al. (1996). A reflection-dominated X-ray spectrum discovered by ASCA in the Circinus galaxy. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 281(4), L69-L73.

A reflection-dominated X-ray spectrum discovered by ASCA in the Circinus galaxy

MATT, Giorgio;
1996-01-01

Abstract

We report the first pointed X-ray observation, made by ASCA, of the nearby Seyfert 2 galaxy in Circinus. The spectrum consists of a very prominent (EW similar to 2 keV) fluorescent 6.4-keV iron line, a very flat continuum (photon spectral index less than 1) and other lines, including one at similar to 7 keV that is probably due, at least in part, to iron K beta fluorescent emission. The spectrum is consistent with Compton scattering and fluorescent emission from cold matter illuminated by an obscured active nucleus.
1996
Matt, G., Fiore, F., Perola, G.c., Piro, L., Fink, H.h., Grandi, P., et al. (1996). A reflection-dominated X-ray spectrum discovered by ASCA in the Circinus galaxy. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 281(4), L69-L73.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/114127
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