Other
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hrxs.confe..50y&link_type=abstract
High Resolution X-ray Spectroscopy with XMM-Newton and Chandra, Proceedings of the international workshop held at the Mullard Sp
Other
Scientific paper
We present measurements of the Fe-K_alpha line for nine type I active galaxies using Chandra High Energy Transmission Grating Spectrometer (HETGS) data. The centroid energies are narrowly dispersed (6.403 +/- 0.062 keV) and indicate an origin of the main line peak in cold matter (FeXVII or lower). There may be contributions from higher ionization states to the total line profile but these are not discussed here. If all the line cores in this sample were the peaks of a relativistically broadened disk line the radial line emissivity law must be flat and the disk inclination angles must have a restricted range. At least three of the nine AGN clearly show a complex Fe-K_alpha line with an underlying broad component, possibly from a disk. In the others, an apparently narrow Fe-K_alpha line (even if it is resolved by Chandra) may still be due to the peak of a disk line. To distinguish this scenario from an origin in distant matter requires variability information.
Padmanabhan Uday
Yaqoob Tahir
No associations
LandOfFree
New Results from Chandra Grating Observations of AGN 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 New Results from Chandra Grating Observations of AGN, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Results from Chandra Grating Observations of AGN will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-965606