1996A&A...305..457M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.14CEST21:58:16

1996A&A...305..457M - Astronomy and Astrophysics, volume 305, 457-467 (1996/1-2)

X-ray and γ-ray emission in open clusters.

MANCHANDA R.K., POLCARO V.F., NORCI L., GIOVANNELLI F., BRINKMANN W., RADECKE H.D., MANTEIGA M., PERSI P. and ROSSI C.

Abstract (from CDS):

We have studied a number of galactic open clusters that lie in the error boxes of COS B sources. These clusters belong to complexes in which similar star formation processes occur. They have similar ages, stellar population and contain peculiar stars with very high-velocity stellar winds. We propose that a system of shock fronts, set up at the interfaces between the hypersonic wind of the peculiar stars and the other cluster members, generates acceleration of cosmic ray particles, whose interactions with the inter-cluster gas concentrations would be responsible for the observed γ-ray emission. We find various observational evidences (including CGRO data, strongly supporting the association of the γ-ray source J 2021+37=2CG075+00 with Berk 87) for the presence of such shock fronts in some of these clusters. We show that the diffuse hard X-ray emission from the clusters regions is consistent with the geometric scenario inferred from the data and with the assumed mechanism of cosmic ray acceleration.

Abstract Copyright:

Journal keyword(s): stars: Wolf-Rayet stars - clusters: open - gamma rays: observations - theory - X-rays: stars

Simbad objects: 103

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Number of rows : 103

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 941 2
2 IC 1805 OpC 02 32 42 +61 27.0   7.03 6.5     ~ 473 2
3 HD 15558 Y*O 02 32 42.5366735903 +61 27 21.582983306 7.82 8.37 7.87 7.34 6.94 O4.5III(f) 294 0
4 HD 15570 Em* 02 32 49.4205362766 +61 22 42.089023028 8.40 8.80 8.11 7.41 6.86 O4If 282 0
5 LS I +61 303 HXB 02 40 31.6641883136 +61 13 45.591138110 11.27 11.61 10.75 10.19 9.55 B0Ve 761 2
6 Ass Cas OB 6 As* 02 43 +61.3           ~ 117 0
7 ICRF J024457.6+622806 Sy1 02 44 57.6968650655 +62 28 06.517178768   12.15 12.19     ~ 253 1
8 HD 50896 WR* 06 54 13.0440847499 -23 55 42.020318514 5.74 6.63 6.91 7.74   WN4b 736 0
9 C 0652-245 OpC 06 56 20 -24 43.8   3.02 2.6     ~ 138 0
10 C 0757-284 OpC 07 58.9 -28 35   7.66 7.2     ~ 45 0
11 HD 65865 WR* 07 59 46.2452165709 -28 44 03.084742445 10.62 11.20 10.90 11.16   WN5h 98 0
12 CD-45 4482 WR* 08 44 47.2902196838 -45 58 55.414166402 10.95 11.29 10.74 10.58   WN8h+? 98 0
13 C 0843-458 OpC 08 44.8 -45 58   6.94 6.8     ~ 36 0
14 C 1007-609 OpC 10 08 46 -61 15.0           ~ 21 0
15 HD 88500 WR* 10 10 31.9111494342 -60 38 42.417239257   10.84 10.65 10.67   WC5 76 0
16 Cl Bochum 10 OpC 10 42 14.2 -59 08 44   6.40 6.2     ~ 72 0
17 HD 93131 WR* 10 43 52.2575981063 -60 07 04.016913264 5.52 6.43 6.48 7.46   WN6ha-w 274 0
18 Cl Trumpler 14 OpC 10 43 56 -59 33.0   5.70 5.5     ~ 425 0
19 HD 93129A SB* 10 43 57.4584179931 -59 32 51.395115271 6.46 7.478 7.310 7.84   O2If* 146 0
20 HD 93162 WR* 10 44 10.3888220947 -59 43 11.105959983 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 334 1
21 [MS70] 1 WR* 10 44 32.1161451494 -57 50 23.981450852   14.71 13.54 13.26   WN5 33 0
22 HD 93204 * 10 44 32.3390160673 -59 44 31.020859370 7.63 8.52 8.42 8.20 7.92 O5.5V((f)) 172 0
23 HD 93250 * 10 44 45.0270200315 -59 33 54.681395850 6.73 8.12 7.50 8.38   O4III(fc) 291 0
24 * eta Car Em* 10 45 03.5455050 -59 41 03.951060 6.37 7.034 6.21 4.90 4.41 OBepec 2201 0
25 Cl Trumpler 16 OpC 10 45 10 -59 43.0   5.35 5.0     ~ 424 0
26 2CG 288-00 gam 10 50 -60.1           ~ 19 0
27 Cl Ruprecht 93 OpC 11 04 09.60 -61 22 30.0   8.05 7.7     ~ 27 1
28 WR 37 WR* 11 05 13.9025929090 -61 20 41.184951648   17.40 16.0     WN4-s 36 0
29 HD 97950 Cl* 11 15 07.346 -61 15 38.52 9.64 9.83 9.03 9.69   WR 184 2
30 NGC 3603 OpC 11 15 18.6 -61 15 26           ~ 942 1
31 Cl Hogg 15 OpC 12 43 36 -63 05.9   11.21 10.3     ~ 43 0
32 HD 311884 WR* 12 43 50.9989169468 -63 05 14.811840934 11.45 11.64 10.81 10.59   WN6+O5V 155 0
33 Cl Danks 1 OpC 13 12 27 -62 42.1           ~ 58 0
34 WR 48a WR* 13 12 39.65 -62 42 55.8           WC6 77 0
35 MR 45 WR* 13 18 23.3593856408 -62 28 21.220292118   15.53 14.32 13.97   WN4-w 44 0
36 Cl Stock 16 OpC 13 19 29 -62 38.0   9.64 9.1     ~ 84 0
37 C 1345-658 OpC 13 48 14 -66 04.5     9.2     ~ 7 0
38 MR 51 WR* 13 49 04.4894389061 -65 41 56.120790651 12.75 12.95 12.71 12.89   WN5 56 0
39 Cl Trumpler 22 OpC 14 31.0 -61 10   8.48 7.9     ~ 43 0
40 WRAY 16-154 WR* 14 31 06.13 -61 20 59.5   15.82 14.22     WN6-s 30 1
41 Cl Pismis 20 OpC 15 15 23 -59 04.0   8.69 7.8     ~ 86 0
42 1CG 333+00 gam 16 17 -49.3           ~ 23 0
43 NAME Big Dipper LXB 16 28 05.5318316228 -49 12 40.011030945           ~ 208 0
44 Ass Ara OB 1 As* 16 39.5 -46 46           ~ 86 0
45 HD 150135 * 16 41 19.4437431640 -48 45 47.570366793 6.19 7.00 6.88 7.33   O6.5V((f))z 106 0
46 NGC 6193 OpC 16 41 20 -48 45.8           ~ 132 0
47 HD 150136 SB* 16 41 20.4156742370 -48 45 46.728092318 4.98 5.78 5.65 6.93   O3.5-4III(f*)+O6IV 171 0
48 4U 1642-45 LXB 16 45 47.7 -45 36 40           ~ 379 1
49 HD 151932 WR* 16 52 19.2478420644 -41 51 16.269632432 6.06 6.79 6.51 7.64   WN7h 292 0
50 NAME Sco OB 1 As* 16 53.5 -41 57           ~ 191 0
51 NGC 6231 OpC 16 54 08.51 -41 49 36.0   2.83 2.6     ~ 485 0
52 HD 152270 WR* 16 54 19.6991728950 -41 49 11.535393651 6.26 6.80 6.597 6.72 6.39 WC7+O5-8 284 0
53 HD 152408 s*b 16 54 58.50567 -41 09 03.0964 5.17 5.92 5.77 7.00   O8Iape 346 0
54 2CG 342-02 gam 17 08 30.1 -44 35 03           ~ 32 0
55 CPD-33 4347 WR* 17 18 49.7246525731 -33 57 41.389875461   13.93 12.56 12.21   WN8/WC9 61 0
56 WRAY 15-1666 WR* 17 18 52.8750745581 -38 50 03.606959080 13.93 13.27 11.83 11.43   WN7 65 0
57 Cl HM 1 OpC 17 18 54 -38 49.0           ~ 39 0
58 Cl Pismis 24 OpC 17 24 43.0 -34 12 23   11.00 9.6     ~ 106 0
59 HD 157504 WR* 17 25 08.8534998754 -34 11 12.502902170 12.80 12.10 10.68 10.39 11.546 WC7+O7-9 107 0
60 MR 74 WR* 17 36 19.8953384759 -33 26 12.274561705 16.01 14.87 13.18 12.99   WC9 82 1
61 Cl Trumpler 27 OpC 17 36 20 -33 31.0   8.24 6.7     ~ 90 1
62 HD 318016 WR* 17 37 13.7437507039 -33 27 56.015803304 13.71 13.16 11.81 11.42   WN8/WC7 74 0
63 SNR G006.4-00.1 SNR 18 01 22.7 -23 17 20           ~ 653 1
64 Cl Bochum 14 OpC 18 02 00 -23 42.3   10.72 9.3     ~ 33 0
65 MR 80 WR* 18 02 04.1238716757 -23 37 42.144766363   14.85       WC9 207 2
66 EM* AS 268 WR* 18 02 23.4579211710 -23 34 37.481060535   14.38 12.31 11.43   WN9h 96 0
67 HD 164492 ** 18 02 23.54916 -23 01 50.9468 6.49 7.49 6.80     O7.5Vz+A2Ia 193 0
68 Ass Sgr OB 1 As* 18 06 -22.8           ~ 113 0
69 HD 165688 WR* 18 07 56.9612003141 -19 23 56.866361615 10.46 10.31 9.87 9.85   WN5-6b 144 0
70 HD 165763 WR* 18 08 28.4691215895 -21 15 11.182287576 7.16 7.54 7.82 8.55   WC6 266 0
71 MR 87 WR* 18 25 30.0233828772 -14 38 41.034349989 13.38 13.09 11.86 11.33   WN6-w 71 0
72 MR 88 WR* 18 31 02.5171189240 -06 35 49.629115130   15.34 14.19     WC9 37 0
73 C 1828-066 OpC 18 31 24 -06 38.0           ~ 5 0
74 MR 89 WR* 18 41 00.8669826586 -04 26 14.473452479 13.1 12.97 11.93 11.67   WN7 65 2
75 Cl Dolidze 33 OpC 18 41 18.00 -04 21 37.0           ~ 11 0
76 HD 190918 WR* 20 05 57.3242972785 +35 47 18.153743699 6.11 6.88 6.75     WN5+O9I 343 0
77 NGC 6871 OpC 20 05 59 +35 46.6   5.43 5.2     ~ 195 0
78 NGC 6883 OpC 20 11 19 +35 49.9     8.0     ~ 47 0
79 HD 192103 WR* 20 11 53.5274946554 +36 11 50.523501826 7.77 8.13 8.11     WC8+OB: 317 0
80 HD 192641 WR* 20 14 31.7667382048 +36 39 39.597237795 7.80 8.20 7.91     WC7+O9 303 0
81 C 2013+366 OpC 20 15 25 +36 48.9           ~ 14 0
82 HD 193576 WR* 20 19 32.4230196684 +38 43 53.958209968 8.15 8.53 8.00     WN5+O6II-V 684 0
83 1H 2018+366 X 20 20 00 +36 50.7           ~ 6 0
84 Cl Berkeley 86 OpC 20 20 12 +38 41.4   8.66 7.9     ~ 104 0
85 4U 2019+39 X 20 21 +39.0           ~ 6 0
86 Ass Cyg OB 9 As* 20 21 +39.9           ~ 118 0
87 GRO J2021+37 gam 20 21 19.9 +37 15 12           ~ 92 2
88 GRO J2019+40 gam 20 21.5 +40 26           ~ 126 1
89 PSR J2021+4026 Psr 20 21 30.496 +40 26 53.56           ~ 207 2
90 Onsala 2S HII 20 21 41.4 +37 25 44           ~ 39 0
91 Cl Berkeley 87 OpC 20 21 43.01 +37 22 13.8           ~ 107 0
92 OH 75.8 +0.3 HII 20 21 43.8 +37 26 39           ~ 91 2
93 WR 142 WR* 20 21 44.3438534563 +37 22 30.543604467   14.39 12.99 12.73 11.04 WO2 120 0
94 NGC 6910 OpC 20 23 08 +40 46.5   7.13 7.4     ~ 165 0
95 LDN 889 DNe 20 27 13.1 +40 05 54           ~ 13 0
96 MR 110 WR* 20 32 03.0200838781 +41 15 20.497485753   15.99 13.97     WC5 72 0
97 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 790 0
98 Schulte 7 * 20 33 14.1095790591 +41 20 21.903381641 12.24 12.00 10.55     O3If* 129 0
99 MR 112 WR* 20 35 47.0859278605 +41 22 44.703520146     12.64 12.16   WC5-6e+O8 141 1
100 HD 219460 ** 23 15 12.39033 +60 27 01.8129 10.23 10.51 9.89     B1II+WN4.5 128 0
101 HD 219460A * 23 15 12.394 +60 27 01.84   10.96 10.57     B1II 124 0
102 Cl Mrk 50 OpC 23 15 15 +60 26.0   9.09 8.5     ~ 45 0
103 Cl Dolidze 78 Cl* ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.07.14-21:58:16

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