2001ApJ...547L..25M

Query : 2001ApJ...547L..25M

2001ApJ...547L..25M - Astrophys. J., 547, L25-L28 (2001/January-3)

Discovery of a luminous, variable, off-center source in the nucleus of M82 with the Chandra high-resolution camera.

MATSUMOTO H., TSURU T.G., KOYAMA K., AWAKI H., CANIZARES C.R., KAWAI N., MATSUSHITA S. and KAWABE R.

Abstract (from CDS):

We present results from observations of the most famous starburst galaxy M82 with the High-Resolution Camera on board the Chandra X-Ray Observatory. We found nine sources in the central 1'x1' region, but no source was detected at the galactic center. Comparing the observations on 1999 October 28 and on 2000 January 20, we found that four of the nine sources showed significant time variability. In particular, CXOM82 J095550.2+694047, which is 9" away from the galactic center, showed extremely large time variability. We conclude that this source is the origin of the hard X-ray time variability of M82 detected with ASCA. Assuming a spectral shape obtained by the ASCA observation, its luminosity in the 0.5-10 keV band changed from 1.2x1040 ergs.s–1 on 1999 October 28 to 8.7x1040 ergs.s–1 on 2000 January 20.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Individual: Messier Number: M82 - Galaxies: Starburst - X-Rays: Galaxies

Nomenclature: Table 1: [MTK2001b] N (Nos 1-9) = CXOM82 JHHMMSS.s+DDMMSS N=2 added.

CDS comments: Table 1, col(2): 7 objects CXOM82 are the same as in 2000Sci...290.1325G, but with some slight difference in coordinates.

Simbad objects: 11

goto Full paper

goto View the references in ADS

Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 CXOU J095546.5+694040 HXB 09 55 46.45 +69 40 40.3           ~ 17 1
2 [MTK2001b] 8 HXB 09 55 47.5 +69 40 36           ~ 5 0
3 NAME M82 ULX-1 UX? 09 55 50.01 +69 40 46.0           ~ 276 1
4 CXOM82 J095550.9+694044 HXB 09 55 50.690 +69 40 43.76           ~ 96 0
5 [FMB2008] 42.20+59.1 HII 09 55 50.94 +69 40 45.3           ~ 28 1
6 [KCF2005] M82 G ULX 09 55 51.040 +69 40 45.49           ~ 241 1
7 CXOU J095551.4+694035 HXB 09 55 51.7 +69 40 36           ~ 9 0
8 [SST2011] J095552.13+694053.1 HXB 09 55 52.13 +69 40 53.2           ~ 11 0
9 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5860 6
10 [SST2011] J095554.56+694100.4 HXB 09 55 54.55 +69 41 00.4           ~ 10 0
11 SN 1983N SN* 13 36 51.23 -29 54 01.7   11.7       SNIb 273 1

To bookmark this query, right click on this link: simbad:objects in 2001ApJ...547L..25M and select 'bookmark this link' or equivalent in the popup menu