Other
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.5018t&link_type=abstract
American Astronomical Society, 196th AAS Meeting, #50.18; Bulletin of the American Astronomical Society, Vol. 32, p.754
Other
Scientific paper
We report X-ray luminosities of 21 LINERs (low-ionization nuclear emission-line regions) and 17 low-luminosity Seyferts obtained with ASCA and discuss the ionizing source in LINERs. Most LINERs with broad Hα emission in their optical spectra (LINER 1s) have a compact hard X-ray source and their 2--10 keV X-ray luminosities (LX) are proportional to their Hα luminosities (LHα ). This correlation strongly supports the hypothesis that the dominant ionizing source in LINER 1s is photoionization by hard photons from low-luminosity AGNs. Although some LINERs without broad Hα emission (LINER 2s) have X-ray properties similar to LINER 1s, the X-ray luminosities of many LINER 2s in our sample are lower than LINER 1s at a given Hα luminosity. The observed X-ray luminosities in these objects are insufficient to power their Hα luminosities, suggesting that their primary ionizing source is something other than an AGN, or that an AGN, if present, is obscured even at energies above 2 keV. LINER 2s having small LX/LHα occupy a localized region with small [OI]/Hα on the excitation diagram. Such LINER spectra can be reproduced by photoionization by very hot stars.
Ho Luis C.
Ptak Andrew F.
Terashima Yoshinosuke
No associations
LandOfFree
Hard X-ray Emission and the Ionizing Source in LINERs 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 Hard X-ray Emission and the Ionizing Source in LINERs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hard X-ray Emission and the Ionizing Source in LINERs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1125848