Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006an....327.1091a&link_type=abstract
Astronomische Nachrichten, Vol. 327, Issue 10, p.1091
Astronomy and Astrophysics
Astronomy
Galaxies: Seyfert, Galaxies: Individual (Mrk 3)
Scientific paper
We present monitoring analysis of 8 XMM-Newton observations of the Seyfert 2 galaxy Mrk 3, spanning a period of ˜19 months. The continuum flux in the 3-12 keV band remains constant during this observing period. The X-ray spectrum is well described, in agreement with previous works, by a highly absorbed (N_H>1024 cm-2) power law model, with a photon index Γ=1.9 and a strong reflection component. A strong Fe Kα line at 6.4 keV with an equivalent width of ˜ 500 eV is detected in the X-ray spectrum. When we consider the co-added spectrum we also detect a weaker emission line at 7.4 keV corresponding to neutral Ni Kα emission and weak evidence for the presence of an ionized Fe Kα line at 6.7 keV. Direct comparison with the results obtained from an earlier XMM-Newton observation of Mrk 3, shows a decrease in the continuum flux of ˜ 30 per cent followed by a similar decrease in the reflected component. Both emission line components at 6.4 and 6.7 keV do not vary. However we find that an alternative model where the N_H varies by 20 per cent is also plausible. In this case both the continuum and the reflected emission do not change.
Akylas Athanassios
Georgantopoulos Ioannis
Nandra Kirpal
No associations
LandOfFree
XMM-Newton monitoring observations of Mrk 3 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 XMM-Newton monitoring observations of Mrk 3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XMM-Newton monitoring observations of Mrk 3 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1238829