2002A&A...384...99S


Query : 2002A&A...384...99S

2002A&A...384...99S - Astronomy and Astrophysics, volume 384, 99-111 (2002/3-2)

X-ray sources in the starburst spiral galaxy M 83. Nuclear region and discrete source population.

SORIA R. and WU K.

Abstract (from CDS):

Chandra has resolved the starburst nuclear region of the face-on grand-design spiral M83. Eighty-one point sources are detected (above 3.5-σ) in the ACIS S3 image, and 15 of them are within the inner 16" region of the galaxy. A point source with Lx≃3x1038erg/s in the 0.3-8.0keV band is found to coincide with the infra-red nuclear photometric peak, one of the two dynamical nuclei of the galaxy. No point-like sources are resolved (at a 2.5-σ level) at the centre of symmetry of the outer optical isophote ellipses, suspected to be another dynamical nucleus. About 50% of the total emission in the nuclear region is unresolved; of this, about 70% can be attributed to hot thermal plasma, and the rest is probably due to unresolved point sources (e.g., faint X-ray binaries). The azimuthally-averaged radial distribution of the unresolved emission has a King-like profile, with no central cusp. Strong emission lines are seen in the spectrum of the optically thin plasma component. The high abundances of C, Ne, Mg, Si and S with respect to Fe suggest that the interstellar medium in the nucleus is enriched and heated by type-II supernova explosions and winds from massive stars. The cumulative luminosity distribution of the discrete X-ray sources is neither a single nor a broken power law. Separating the sources in the nuclear region (within a distance of 60" from the X-ray centre) from the rest reveals that the two groups have different luminosity distributions. The logN(>S) - logS curve of the sources in the inner region (nucleus and stellar bar) is a single power law, which we interpret as due to continuous, ongoing star formation. Outside the central region, there is a smaller fraction of sources brighter than the Eddington limit for an accreting neutron star.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M83 (= NGC 5236) - galaxies: nuclei - galaxies: spiral - galaxies: starburst - X-rays: binaries - X-rays: galaxies

Nomenclature: Table A1: [SW2002b] NN (Nos 1-81).

Simbad objects: 88

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Number of rows : 88
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11375 1
2 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4070 5
3 NGC 4308 GiG 12 21 56.8528013961 +30 04 27.591002724   14.3       ~ 79 0
4 NGC 4697 GiG 12 48 35.8992791099 -05 48 02.497675635   10.97   9.83   ~ 816 0
5 [SW2003] 2 X 13 36 41.03 -29 51 10.1           ~ 4 0
6 [SW2003] 3 X 13 36 41.40 -29 50 44.9           ~ 4 0
7 RX J133644-29509 X 13 36 43.53 -29 51 06.9           ~ 8 0
8 [SW2003] 6 X 13 36 48.02 -29 53 24.6           ~ 5 0
9 [SW2003] 8 X 13 36 49.12 -29 52 58.4           ~ 4 1
10 [SW2003] 9 X 13 36 49.20 -29 53 03.0           ~ 4 1
11 [DK2003] M83-10 SNR 13 36 49.80 -29 52 17.2           ~ 10 0
12 [SW2003] 14 X 13 36 51.65 -29 53 34.9           ~ 7 0
13 [BCD2014] 11 SNR 13 36 53.2539551438 -29 53 25.158321991           ~ 10 0
14 [LKB2014] X107 SNR 13 36 53.29 -29 52 42.5           ~ 9 0
15 [LKB2014] X116 SNR 13 36 53.89 -29 48 48.4           ~ 10 0
16 [SW2003] 21 X 13 36 53.92 -29 51 14.6           ~ 4 0
17 CXOU J133655.0-295239 SNR 13 36 55.03 -29 52 39.4           ~ 10 0
18 [BCD2014] 15 SNR 13 36 55.20 -29 54 03.1           ~ 9 0
19 CXOU J133655.5-295510 X 13 36 55.48 -29 55 09.8           ~ 5 0
20 CXOU J133655.6-295303 SNR 13 36 55.56 -29 53 03.5           ~ 14 0
21 [BCD2014] 16 SNR 13 36 56.23 -29 52 55.1           ~ 10 0
22 [SW2003] 31 X 13 36 56.64 -29 49 12.4           ~ 5 0
23 [SW2003] 33 X 13 36 57.27 -29 53 39.4           ~ 5 0
24 [SW2003] 34 X 13 36 57.48 -29 47 29.0           ~ 5 0
25 [DK2003] M83-35 SNR 13 36 57.88 -29 53 02.8           ~ 10 0
26 [SW2003] 36 X 13 36 57.91 -29 49 23.5           ~ 4 0
27 [SW2003] 37 X 13 36 58.19 -29 51 24.1           ~ 4 0
28 [SW2003] 38 X 13 36 58.23 -29 52 15.8           ~ 4 0
29 [SW2003] 39 X 13 36 58.38 -29 51 04.7           ~ 11 0
30 [CHP2004] J133658.3-294833 X 13 36 58.41 -29 48 33.4           ~ 3 0
31 [DK2003] M83-42 X 13 36 59.09 -29 53 36.2           ~ 7 0
32 [SW2003] 44 X 13 36 59.45 -29 49 59.0           ~ 9 0
33 CXOU J133659.5-295203 SNR 13 36 59.51 -29 52 04.0           ~ 12 0
34 [SW2003] 47 X 13 36 59.77 -29 52 05.4           ~ 5 0
35 [SW2003] 49 X 13 36 59.99 -29 51 50.3           ~ 5 0
36 [SW2003] 52 X 13 37 00.09 -29 53 29.6           ~ 4 0
37 [DK2003] M83-114 SR? 13 37 00.22 -29 52 06.5           ~ 6 0
38 [DBL2010] M83-SNR-N-04 SNR 13 37 00.33 -29 52 05.5           ~ 7 0
39 SN 1968L SN* 13 37 00.42 -29 51 59.8   12.0 12.0     SNIIP 80 1
40 [DK2003] M83-50 X 13 37 00.43 -29 50 54.1           ~ 6 0
41 [DK2003] M83-117 X 13 37 00.48 -29 51 55.9           ~ 5 0
42 [SW2003] 58 X 13 37 00.60 -29 51 46.9           ~ 5 0
43 [SW2003] 60 X 13 37 00.64 -29 53 19.7           ~ 4 0
44 CXOU J133700.6-295159 X 13 37 00.65 -29 51 59.5           ~ 4 0
45 [SW2003] 62 SR? 13 37 00.68 -29 52 06.3           ~ 6 0
46 [DK2003] M83-120 X 13 37 00.69 -29 52 04.3           ~ 4 0
47 [SW2003] 63 SR? 13 37 00.89 -29 51 56.0           ~ 7 0
48 M 83 SBG 13 37 00.919 -29 51 56.74 8.85 8.11 7.52 7.21   ~ 2310 2
49 [SW2003] 64 X 13 37 00.95 -29 52 02.8           ~ 6 0
50 [SW2003] 65 X 13 37 01.06 -29 52 45.5           ~ 5 0
51 CXOU J133701.1-295151 SR? 13 37 01.11 -29 51 52.1           ~ 16 0
52 [DK2003] M83-54 X 13 37 01.17 -29 54 49.2           ~ 7 0
53 [SW2003] 69 X 13 37 01.26 -29 52 02.3           ~ 4 0
54 [SW2003] 70 SNR 13 37 01.28 -29 52 00.1           ~ 9 0
55 [SW2003] 71 X 13 37 01.30 -29 51 36.5           ~ 4 0
56 RX J133701-29534 X 13 37 01.48 -29 53 26.5           ~ 10 0
57 [SW2003] 73 X 13 37 01.63 -29 51 28.2           ~ 5 0
58 [SW2003] 76 X 13 37 01.63 -29 47 42.8           ~ 5 0
59 [BL2004b] SNR 37 SR? 13 37 01.73 -29 51 13.4           ~ 10 0
60 [IVE99] H22 X 13 37 02.01 -29 55 17.9           ~ 7 0
61 [SW2003] 79 X 13 37 02.15 -29 55 06.0           ~ 4 0
62 [SW2003] 80 SNR 13 37 02.21 -29 49 52.5           ~ 9 0
63 [BL2004b] SNR 41 SNR 13 37 02.42 -29 51 26.1           ~ 15 0
64 [SW2003] 82 X 13 37 02.45 -29 53 19.2           ~ 4 0
65 [SW2003] 84 X 13 37 03.29 -29 52 26.7           ~ 6 0
66 [SW2003] 85 X 13 37 03.88 -29 49 30.4           ~ 5 0
67 RX J133704-29539 X 13 37 04.28 -29 54 03.6           ~ 11 0
68 [SW2003] 87 X 13 37 04.37 -29 51 30.7           ~ 4 0
69 [SW2003] 88 X 13 37 04.37 -29 51 21.5           ~ 8 1
70 [SW2003] 91 X 13 37 04.65 -29 51 20.4           ~ 5 1
71 [SW2003] 92 X 13 37 04.74 -29 48 52.0           ~ 4 0
72 [SW2003] 93 X 13 37 05.47 -29 52 34.0           ~ 4 0
73 [LKB2014] X310 SNR 13 37 06.02 -29 55 14.4           ~ 11 0
74 [LKB2014] X311 SNR 13 37 06.17 -29 54 44.2           ~ 9 0
75 [CHP2004] J133706.2-295232 X 13 37 06.2 -29 52 32           ~ 3 0
76 [BCD2014] 52 SNR 13 37 07.11 -29 51 01.6           ~ 10 0
77 [BL2004b] SNR 63 SNR 13 37 11.88 -29 52 15.5           ~ 10 0
78 [SW2003] 112 X 13 37 12.45 -29 51 40.1           ~ 4 0
79 [SW2003] 113 X 13 37 12.53 -29 51 54.9           ~ 5 0
80 [LKB2014] X368 SNR 13 37 12.81 -29 50 12.3           ~ 10 0
81 [LKB2014] X378 X 13 37 14.4437832502 -29 51 48.802245267           ~ 4 0
82 [SW2003] 118 X 13 37 14.67 -29 49 44.4           ~ 4 0
83 RX J133716-29495 X 13 37 16.38 -29 49 39.4           ~ 6 0
84 [BCD2014] 62 SNR 13 37 17.21 -29 51 53.3           ~ 10 0
85 [SW2003] 124 X 13 37 17.98 -29 52 11.8           ~ 4 0
86 [SW2003] 126 X 13 37 19.64 -29 51 31.6           ~ 4 0
87 RX J133719-29536 ULX 13 37 20.12 -29 53 47.7           ~ 23 2
88 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2631 2

    Equat.    Gal    SGal    Ecl

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2021.07.29-23:44:01

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