Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-03-20
Astronomy and Astrophysics
Astrophysics
submitted to ApJL. Based on publicly available data, see http://xmm.vilspa.esa.es/external/xmm_news/items/sn_2002_ap/index.sht
Scientific paper
10.1086/341445
The face-on spiral galaxy M74 (NGC 628) was observed by XMM on 2002 February 2. In total, 21 sources are found in the inner 5' from the nucleus (after rejection of a few sources associated to foreground stars). Hardness ratios suggest that about half of them belong to the galaxy. The higher-luminosity end of the luminosity function is fitted by a power-law of slope -0.8. This can be interpreted as evidence of ongoing star formation, in analogy with the distributions found in disks of other late-type galaxies. A comparison with previous Chandra observations reveals a new ultraluminous X-ray transient (L_x \~ 1.5 x 10^39 erg/s in the 0.3--8 keV band) about 4' North of the nucleus. We find another transient black-hole candidate (L_x ~ 5 x 10^38 erg/s) about 5' North-West of the nucleus. The UV and X-ray counterparts of SN 2002ap are also found in this XMM observation.
Kong Albert K. H.
Soria Roberto
No associations
LandOfFree
XMM-Newton observations of the spiral galaxy M74 (NGC 628) 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 the spiral galaxy M74 (NGC 628), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XMM-Newton observations of the spiral galaxy M74 (NGC 628) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-495562