Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-06-24
Astron.Astrophys. 392 (2002) 817
Astronomy and Astrophysics
Astrophysics
10 pages, 11 figures. Accepted for publication by Astronomy and Astrophysics. If you want figures at full resolution, please s
Scientific paper
10.1051/0004-6361:20020950
An XMM-Newton study of ultraluminous X-ray sources (ULX) has been performed in a sample of 10 nearby Seyfert galaxies. Eighteen ULX have been found with positional uncertainty of about 4". The large collecting area of XMM-Newton makes the statistics sufficient to perform spectral fitting with simple models in 8 cases. The main results of the present minisurvey strengthen the theory that the ULX could be accreting black holes in hard or soft state. In some cases, the contribution of the ULX to the overall X-ray flux appears to be dominant with respect to that of the active nucleus. In addition, 6 ULX present probable counterparts at other wavelengths (optical/infrared, radio). A multiwavelength observing strategy is required to better assess the nature of these sources.
Bassani Loredana
Cappi Massimo
Cocco G. Di
Dadina Mauro
Foschini Luca
No associations
LandOfFree
XMM-Newton observations of ultraluminous X-ray sources in nearby 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 XMM-Newton observations of ultraluminous X-ray sources in nearby galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XMM-Newton observations of ultraluminous X-ray sources in nearby galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-3414