Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051

Details Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051 Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.0829r&link_type=abstract

American Astronomical Society, HEAD meeting #11, #8.29; Bulletin of the American Astronomical Society, Vol. 41, p.667

Astronomy and Astrophysics

Astronomy

Scientific paper

Deep 300ks Chandra HETG and 500ks Suzaku observations of the rapidly variable narrow-line Seyfert 1 NGC 4051 are presented. The spectra reveal more than 30 significant photo-ionized lines in both emission and absorption; the origin of both the high and low ionization material will be discussed. The time variability of the absorber on scales from light-days from the black hole to light years will be assessed, current indications are that at least part of the X-ray reprocessor (e.g. responsible for the Fe K line) originates on the scale of a few hundred gravitational radii from the black hole.
The Suzaku observations show a new hard X-ray excess component above 10 keV is present in NGC 4051. The strength of this hard X-ray excess far exceeds what would be expected via Compton scattering of X-rays off a geometrically thin accretion disk subtending 2pi steradians to the X-ray continuum source. Instead the continuum photons either (i) undergo
gravitational light bending close to the black hole or (ii) alternatively they emerge through a near Compton-thick absorbing column of gas, which partially covers the X-ray emitter. Indeed many Suzaku observations of AGN show similar strong hard X-ray components, which cannot be readily accounted for by accretion disk reflection models alone. The observations may point towards a paradigm shift in our understanding of the central regions of AGN, whereby Compton-thick gas exists along the sight-lines to even type I AGN, perhaps in the form of a putative disk wind.

Affiliated with

Also associated with

No associations

Rating

Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Revealing The Innermost Regions Of AGN Through Deep Chandra and Suzaku Observations Of NGC 4051 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1092284