1995A&A...300...91R

Query : 1995A&A...300...91R

1995A&A...300...91R - Astronomy and Astrophysics, volume 30091-100 (1995/8-1)

X-ray study of starburst galaxies.

REPHAELI Y., GRUBER D. and PERSIC M.

Abstract (from CDS):

We present full results of a wide-energy, population study of X-ray emission from a sample of 51 candidate starburst galaxies selected from the IRAS Bright Galaxy Sample. Superposed low and high energy X-ray emission from these galaxies in the Einstein IPC and HEAO-1 A2 and A4 energy bands, which span 0.5 to 160keV, is detected at the 99.99% confidence level, after allowing for confusion noise in the HEAO-1 data. Above 13keV the confidence level is only 85%. A power-law fit to the mean spectral luminosity yields a (photon) index of 1.47±0.26. We consider and assess likely environments and mechanisms for X-ray emission in starburst galaxies. These include thermal emission from massive binaries, supernova remnants, and galactic halos, and nonthermal emission resulting from Compton scattering of relativistic electrons by the far IR and the cosmic microwave background radiation fields. The contribution of the population of sources represented by this sample to the 3-50keV residual cosmic X-ray background is estimated to be at the 3-4% level assuming no evolution. This contribution is significantly higher if the population evolved moderately.

Abstract Copyright: ∼

Journal keyword(s): galaxies: starburst - X-rays: galaxies - diffuse radiation

CDS comments: Table 1: Zw 049 not identified, IRAS 0433 = IRAS 04335-2514, IRAS 0833 = IRAS 08339+6517, MCG -04-12 = MCG -04-12-003

Simbad objects: 58

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Number of rows : 58
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Z 477-41 GiP 00 01 41.937 +23 29 45.20   13.9       ~ 127 1
2 NGC 23 AGN 00 09 53.411 +25 55 25.46   12.5       ~ 331 2
3 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
4 Z 501-40 AGN 00 54 50.2180539288 +29 14 48.170620788   15.3       ~ 99 0
5 IC 1623 IG 01 07 47.24 -17 30 25.0   15       ~ 338 2
6 SK 160 HXB 01 17 05.1457288392 -73 26 36.014808156 12.23 13.00 13.15   13.17 O9.7Ia+ 918 0
7 NGC 716 AG? 01 52 59.6547585288 +12 42 30.693406572   14.0       ~ 104 1
8 Z 482-32 EmG 01 58 30.030 +25 21 36.13   14.3       ~ 78 1
9 NGC 877 LSB 02 17 59.6453041536 +14 32 38.215857696   12.5       ~ 189 1
10 NGC 958 Sy2 02 30 42.8187658032 -02 56 20.526742608   13.0   11.81 12.4 ~ 164 0
11 NGC 992 AGN 02 37 25.491 +21 06 03.04   13.5       ~ 144 1
12 NGC 1083 EmG 02 45 40.326 -15 21 40.15   14       ~ 44 0
13 NGC 1134 AG? 02 53 41.3598078576 +13 00 51.209541468   13.2       ~ 120 1
14 Z 389-47 G 02 55 57.2812303104 +00 41 33.370546416   14.9       ~ 101 1
15 NGC 1204 Sy2 03 04 39.8863185024 -12 20 28.999064652   15   13.11   ~ 67 0
16 Z 418-14 AG? 04 12 22.670 +05 32 49.13   15.50       ~ 170 0
17 MCG-04-11-023 Sy2 04 35 39.276 -25 07 58.32   14.86   13.45   ~ 40 0
18 MCG-04-12-003 GiG 04 39 06.398 -24 11 02.94   14.47   12.99   ~ 59 1
19 X LMC X-4 HXB 05 32 49.5556042296 -66 22 13.202721768   13.9 14.0 14.290   O8III 714 0
20 2MASX J08382309+6507160 SBG 08 38 23.093 +65 07 16.05     14.16     ~ 141 2
21 NGC 2623 LIN 08 38 24.016 +25 45 16.29 14.10 13.99 13.36     ~ 533 2
22 NGC 2633 GiG 08 48 04.6279110889 +74 05 55.032130996   12.4       ~ 176 1
23 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
24 NGC 3110 Sy1 10 04 02.12400 -06 28 29.1250   13.4   13.3 12.5 ~ 191 2
25 NGC 3147 Sy2 10 16 53.6388580752 +73 24 02.641798224   11.43 10.61     ~ 533 2
26 NGC 3221 AG? 10 22 19.988 +21 34 10.56   14.3       ~ 151 1
27 NGC 3508 Sy1 11 02 59.6529633144 -16 17 21.667120980   13.6   12.67 13.0 ~ 58 1
28 NGC 3597 EmG 11 14 41.9796496464 -23 43 39.573399828   13.62   12.46   ~ 134 1
29 NGC 3628 LIN 11 20 17.018 +13 35 22.16   10.42 9.48 9.22   ~ 853 3
30 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
31 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
32 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
33 NGC 4174 Sy2 12 12 26.8876661016 +29 08 57.158312172   14.3 13.64 13.05   ~ 114 2
34 NGC 4433 EmG 12 27 38.610 -08 16 42.42   13.4   12.40 12.7 ~ 106 1
35 M 88 Sy2 12 31 59.1525062448 +14 25 13.148971824   14.33 13.18     ~ 843 1
36 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
37 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
38 NGC 4666 AGN 12 45 08.676 -00 27 42.88   11.7   11.5 10.7 ~ 421 1
39 IC 860 LIN 13 15 03.51 +24 37 07.8   14.8       ~ 236 0
40 NGC 5104 AGN 13 21 23.11513 +00 20 33.3820   14.5   13.227   ~ 169 1
41 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
42 Z 190-60 AGN 13 49 13.912 +35 15 27.04   14.7       ~ 128 1
43 NGC 5394 H2G 13 58 33.6405096192 +37 27 12.732147036   13.7 13.12     ~ 215 2
44 APG 84 IG 13 58 34.30 +37 27 10.9           ~ 147 0
45 NGC 5430 AGN 14 00 45.820 +59 19 43.14   12.7       ~ 261 1
46 NGC 5433 G 14 02 36.06453 +32 30 37.5440   14.0       ~ 97 1
47 NGC 5653 AGN 14 30 10.4187147048 +31 12 55.568509596   12.7       ~ 184 1
48 NGC 5676 GiG 14 32 46.853 +49 27 28.11   11.7       ~ 265 1
49 NGC 5713 GiG 14 40 11.528 -00 17 21.16 11.88 11.84 11.20     ~ 421 2
50 NGC 5775 GiG 14 53 57.653 +03 32 40.10   13.0 11.34     ~ 460 2
51 NGC 5936 AGN 15 30 00.846 +12 59 21.55   13.0       ~ 179 1
52 NGC 5990 Sy2 15 46 16.3702704024 +02 24 55.693907820   13.1       ~ 158 1
53 NGC 6052 rG 16 05 12.8715178104 +20 32 32.607297132 13.01 13.44 13.00     ~ 362 2
54 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
55 NGC 7541 GiG 23 14 43.857 +04 32 02.04   12.7       ~ 333 1
56 NGC 7591 SyG 23 18 16.2727927344 +06 35 09.108933504   13.8       ~ 285 1
57 NGC 7771 GiG 23 51 24.880 +20 06 42.57 13.42 13.08 12.25     ~ 350 3
58 Z 455-59 AGN 23 51 26.731 +20 35 10.22   14.9       ~ 237 0

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