Highly ionized Fe K emission lines from the LINER galaxy M 81

Details Highly ionized Fe K emission lines from the LINER galaxy M 81 Highly ionized Fe K emission lines from the LINER galaxy M 81

2004-04-23

arxiv.org/abs/astro-ph/0404478v1

Astron.Astrophys. 422 (2004) 77-84

Astronomy and Astrophysics

Astrophysics

Accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20034451

We present spectral and timing results from a long (130 ks) XMM-NEWTON EPIC observation of the nucleus of the Seyfert/LINER galaxy M 81. During the observation the X-ray flux varied by 20%, but there was no significant change in spectral shape. The 2-10 keV spectrum is well described by a power law continuum and three narrow Fe K emission lines at 6.4, 6.7 and 6.96 keV. The three emission lines have equivalent widths of 39, 47, and 37 eV respectively. The ratios of the three lines are thus more similar to those observed from the Galactic Centre region than to those typically observed from Seyfert galaxies. The high ionization lines most likely originate either from photoionized gas within 0.1 pc of the nucleus of M 81, or from a non-thermal distribution of cosmic-ray electrons interacting with the 0.2-0.6 keV thermal plasma which is found in the bulge of M 81.

Affiliated with

Also associated with

No associations

Rating

Highly ionized Fe K emission lines from the LINER galaxy M 81 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 Highly ionized Fe K emission lines from the LINER galaxy M 81, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly ionized Fe K emission lines from the LINER galaxy M 81 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-393435