A Detection of an X-ray Wind and an Ionized Disk in the Chandra HETGS Observation of the Seyfert 2 Galaxy IRAS 18325-5926

Details A Detection of an X-ray Wind and an Ionized Disk in the Chandra HETGS Observation of the Seyfert 2 Galaxy IRAS 18325-5926 A Detection of an X-ray Wind and an Ionized Disk in the Chandra HETGS Observation of the Seyfert 2 Galaxy IRAS 18325-5926

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cfdd.confe.163m&link_type=abstract

Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wo

Physics

Agn Jets

Scientific paper

We present the first high-resolution spectroscopic X-ray observation of the Seyfert 2 galaxy IRAS 18325-5926 taken by the Chandra High Energy Transmission Grating Spectrometer (HETGS). IRAS 18325-5926 is a unique source because it displays many Seyfert 1 characteristics despite being classified as a type 2 Seyfert. We detect a blueshifted ionized absorber in the X-ray spectrum, which may be an X-ray wind originating in the obscuring torus around the black hole. We explore whether the associated ejected mass flux plays a a significant role in affecting the large scale-environment of the host galaxy. We find a broad Fe XXV emission that is consistent with previous (e.g. XMM-Newton) results showing an origin in an ionized disk. With Chandra we place constraints on the narrow core. The X-ray results confirm the dual Seyfert 1 and Seyfert 2 properties of IRAS 18325-5926. Because we are able to view both the obscuring gas and the accretion disk of IRAS 18325-5926, it may be that the surrounding gas of the black hole is patchy, or that we are viewing the system at an angle just grazing the obscuring torus.

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