| | |
| | |
Stat |
Members: 3667 Articles: 2'599'751 Articles rated: 2609
16 February 2025 |
|
| | | |
|
Article overview
| |
|
Chandra X-ray Sources in M101 | W. D. Pence
; S. L. Snowden
; K. Mukai
; K. D. Kuntz
; | Date: |
6 Jul 2001 | Subject: | astro-ph | Affiliation: | 1 and 2), K. Mukai (1 and 2), K. D. Kuntz ( NASA/GSFC USRA Univ. of Maryland Baltimore Co. | Abstract: | A deep (98.2 ks) Chandra Cycle-1 observation has revealed a wealth of discrete X-ray sources as well as diffuse emission in the nearby face-on spiral galaxy M101. From this rich dataset we have created a catalog of the 110 sources from the S3 chip detected with a significance of >3 sigma, corresponding to a flux of ~1.0E-16 ergs/cm/cm/s and a luminosity of 1.0E36 ergs/s for a distance to M101 of 7.2 Mpc. The sources display a distinct correlation with the spiral arms and include a variety of X-ray binaries, supersoft sources, supernova remnants, and other objects of which only ~27 are likely to be background sources. There are only a few sources in the interarm regions, and most of these have X-ray colors consistent with that of background AGNs. The derived log N-log S relation for the sources in M101 (background subtracted) has a slope of -0.80+/-0.05 over the range of 1.0E36 - 1.0E38 ergs/s. The nucleus is resolved into 2 nearly identical X-ray sources, each with a 0.5-2.0 keV flux of 4.0E37 ergs/s. One of these sources coincides with the optical nucleus, and the other coincides with a cluster of stars 110 pc to the south. | Source: | arXiv, astro-ph/0107133 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|