Mathematics – Logic
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.4813m&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #48.13; Bulletin of the American Astronomical Society, Vol. 34, p.1181
Mathematics
Logic
Scientific paper
We present an X-Ray survey, using archival data from the Chandra Advanced CCD Imaging Spectrometer, of 33 LINER galaxies for which Infrared Space Observatory comparison data is available. These X-Ray observations provide a useful "window" into the nuclei of obscured AGN out to column densities of a few times 1024}cm{-2. Using Chandra's high angular resolution (0.5"/pixel), we detect nuclear point sources morphologically consistent with AGN in >50% of the sample. In many cases, comparison of hard (2-10 keV) to soft (0.2-2 keV) X-Rays gives further evidence of AGN. This evidence is compared with IR spectral diagnostics for AGN activity. We find that several sources which show strong X-ray nuclear point sources do not show the high excitation lines characteristic of AGN in the mid-infrared. Similarily, several sources show distinct signatures of AGN activity in the mid-infrared but do not display nuclear point sources in the X-rays. With the advent of SIRTF, and future IR missions such as Herschel and NGST, it is increasingly critical to determine if multiwavelength diagnostics can provide a consistent picture of AGN. This work was supported by NASA grant NAG5-11432.
McNulty J.
Sambruna S.
Satyapal Shobita
No associations
LandOfFree
An X-ray Investigation of LINER Galaxies 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 An X-ray Investigation of LINER Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An X-ray Investigation of LINER Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1890128