Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48..231i&link_type=abstract
Publications of the Astronomical Society of Japan, v.48, p.231-236.
Astronomy and Astrophysics
Astronomy
35
Galaxies: Active, Galaxies: Individual (Ngc 1097), Galaxies: Jets, X-Rays: Spectra
Scientific paper
Using the ASCA observatory, X-ray observations were made of the spiral galaxy NGC 1097, which exhibits four optical jets. Hard X-ray emission from a point-like source at the nucleus was detected at a 2--10 keV luminosity of 1times 10(41) erg s(-1) for an assumed distance of 24 Mpc. The 2--10 keV spectrum was well fitted with a power-law of photon index ~ 1.8. Although no X-ray variability was detected during a ~ 40 ks pointing, the observed X-ray to optical luminosity ratio of NGC 1097 is too high for the X-ray emission to be explained by an assembly of discrete X-ray sources. From our results and optical activity, the existence of a low-luminosity active galactic nucleus (LLAGN) is strongly suggested. In the soft X-ray band (0.5--2 keV) a thin thermal emission with a temperature kT ~ 0.6 keV was also detected, which is understood to be emission from hot gas associated with starburst activity.
Fukazawa Yasushi
Ishisaki Yoshitaka
Iyomoto Naoko
Makishima Kazuo.
Nakai Naomasa
No associations
LandOfFree
Detection of Excess Hard X-Ray Emission from the Optical Jet Galaxy NGC 1097 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 Detection of Excess Hard X-Ray Emission from the Optical Jet Galaxy NGC 1097, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of Excess Hard X-Ray Emission from the Optical Jet Galaxy NGC 1097 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1108562