2003ApJ...598..516H

Query : 2003ApJ...598..516H

2003ApJ...598..516H - Astrophys. J., 598, 516-526 (2003/November-3)

A Chandra X-ray study of the globular cluster M80.

HEINKE C.O., GRINDLAY J.E., EDMONDS P.D., LLOYD D.A., MURRAY S.S., COHN H.N. and LUGGER P.M.

Abstract (from CDS):

We report our analysis of a Chandra X-ray observation of the rich globular cluster M80, in which we detect some 19 sources to a limiting 0.5-2.5 keV X-ray luminosity of 7x1030 ergs/s within the half-mass radius. X-ray spectra indicate that two of these sources are quiescent low-mass X-ray binaries containing neutron stars. We identify five sources as probable cataclysmic variables (CVs), one of which seems to be heavily absorbed, implying high inclination. The brightest CV may be the X-ray counterpart of nova 1860 T Sco. The concentration of the X-ray sources within the cluster core implies an average mass of 1.2±0.2 M☉, consistent with the binary nature of these systems and very similar to the radial distribution of the blue stragglers in this cluster. The X-ray and blue straggler source populations in M80 are compared to those in the similar globular cluster 47 Tuc.

Abstract Copyright: ∼

Journal keyword(s): Stars: Blue Stragglers - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6093 - Stars: Novae, Cataclysmic Variables - Stars: Neutron - X-Rays: Binaries

Nomenclature: Table 1: [HGE2003] CXNN (Nos CX1 to CX19).

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 - 2026 		#notes
1 CXOGlb J002400.9-720453 LXB 00 24 00.968 -72 04 53.18     21.7     ~ 59 0
2 CXOGlb J002403.4-720451 LXB 00 24 03.494 -72 04 51.94           ~ 62 1
3 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
4 PSR B0021-72W Psr 00 24 06.0580 -72 04 49.088           ~ 87 1
5 Cl* NGC 104 EGG V27 BY* 00 24 08.496 -72 05 00.23 18.673   18.121   17.403 ~ 14 0
6 CXOGlb J002410.7-720425 CV* 00 24 10.763 -72 04 25.71           ~ 13 0
7 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
8 2E 3049 X 13 26 19.796 -47 29 10.51   26.8   25.3   ~ 22 0
9 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
10 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
11 2MASS J16164691-2255112 * 16 16 46.9141487520 -22 55 11.502953220           ~ 2 0
12 CXOU J161646.9-225737 X 16 16 46.93 -22 57 37.7           ~ 1 0
13 CXOU J161647.1-225535 X 16 16 47.19 -22 55 35.9           ~ 1 0
14 CXOU J161648.3-225906 X 16 16 48.35 -22 59 06.2           ~ 1 0
15 CXOU J161648.5-225752 X 16 16 48.55 -22 57 52.4           ~ 1 0
16 CXOU J161648.5-225311 X 16 16 48.55 -22 53 11.9           ~ 2 0
17 CXOU J161648.6-225412 X 16 16 48.64 -22 54 12.4           ~ 1 0
18 CXOU J161649.8-225705 X 16 16 49.86 -22 57 05.3           ~ 1 0
19 CXOU J161650.2-225349 X 16 16 50.28 -22 53 49.5           ~ 1 0
20 CXOU J161652.1-225612 X 16 16 52.15 -22 56 12.9           ~ 1 0
21 CXOU J161652.2-225614 X 16 16 52.29 -22 56 14.6           ~ 1 0
22 CXOU J161652.8-225420 X 16 16 52.85 -22 54 20.8           ~ 1 0
23 CXOU J161653.8-225844 X 16 16 53.83 -22 58 44.2           ~ 1 0
24 CXOU J161653.9-225618 X 16 16 53.93 -22 56 18.8           ~ 1 0
25 CXOU J161653.9-225904 X 16 16 53.94 -22 59 04.1           ~ 1 0
26 CXOU J161654.6-225615 X 16 16 54.63 -22 56 15.2           ~ 1 0
27 CXOU J161655.0-225451 X 16 16 55.09 -22 54 51.6           ~ 1 0
28 CXOU J161655.5-225925 X 16 16 55.58 -22 59 25.7           ~ 1 0
29 CXOU J161655.8-225625 X 16 16 55.85 -22 56 25.1           ~ 1 0
30 2MASS J16165597-2256371 X 16 16 55.9827688344 -22 56 37.338314352           ~ 1 0
31 CXOU J161658.3-225838 X 16 16 58.30 -22 58 38.1           ~ 2 0
32 CXOU J161659.1-225349 X 16 16 59.14 -22 53 49.5           ~ 1 0
33 V* T Sco No* 16 16 59.7637129856 -22 59 44.681457206       16.266   ~ 72 0
34 CXOU J161659.8-225931 X 16 16 59.88 -22 59 31.1           ~ 2 0
35 [HGE2003] CX10 X 16 17 00.407 -22 58 28.87           ~ 3 0
36 CXOU J161700.8-225700 X 16 17 00.90 -22 57 00.1           ~ 1 0
37 CXOU J161701.0-225307 X 16 17 01.05 -22 53 07.8           ~ 2 0
38 [HGE2003] CX8 X 16 17 01.114 -22 58 29.33           ~ 3 0
39 [HGE2003] CX3 CV* 16 17 01.597 -22 58 27.95           ~ 6 0
40 Cl* NGC 6093 DN 2 CV* 16 17 01.708 -22 58 15.34           ~ 8 0
41 [HGE2003] CX13 X 16 17 01.755 -22 58 29.29           ~ 4 0
42 [HGE2003] CX4 CV* 16 17 02.005 -22 58 33.03           ~ 5 0
43 CXOU J161702.0-230033 X 16 17 02.05 -23 00 33.0           ~ 1 0
44 [HGE2003] CX15 CV* 16 17 02.10 -22 58 31.8           ~ 5 0
45 [HGE2003] CX16 X 16 17 02.12 -22 58 19.8           ~ 4 0
46 Cl* NGC 6093 DN 1 CV* 16 17 02.2 -22 58 38           ~ 9 0
47 [HGE2003] CX17 X 16 17 02.22 -22 58 33.7           ~ 4 0
48 [HGE2003] CX9 X 16 17 02.40 -22 58 32.6           ~ 4 0
49 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
50 [HGE2003] CX11 X 16 17 02.472 -22 58 37.86           ~ 3 0
51 [HGE2003] CX14 X 16 17 02.55 -22 58 30.5           ~ 3 0
52 [HGE2003] CX12 X 16 17 02.57 -22 58 45.0           ~ 3 0
53 [HGE2003] CX2 CV* 16 17 02.576 -22 58 36.48           ~ 6 0
54 [HGE2003] CX18 X 16 17 02.82 -22 58 36.0           ~ 3 0
55 [HGE2003] CX6 X 16 17 03.569 -22 58 25.30           ~ 4 0
56 [HGE2003] CX19 X 16 17 03.85 -22 58 47.1           ~ 3 0
57 2MASS J16170409-2255285 Y*O 16 17 04.0989774792 -22 55 28.595607564           M5.25 9 0
58 CXOU J161704.5-230055 X 16 17 04.57 -23 00 55.2           ~ 1 0
59 CXOU J161704.7-225622 X 16 17 04.78 -22 56 22.6           ~ 1 0
60 CXOU J161706.2-225835 X 16 17 06.22 -22 58 35.6           ~ 2 0
61 CXOU J161706.4-225318 X 16 17 06.49 -22 53 18.0           ~ 2 0
62 CXOU J161706.8-225808 X 16 17 06.87 -22 58 08.2           ~ 1 0
63 CXOU J161707.0-230121 X 16 17 07.06 -23 01 21.3           ~ 1 0
64 CXOU J161707.7-225755 X 16 17 07.77 -22 57 55.8           ~ 1 0
65 CXOU J161707.8-225752 X 16 17 07.90 -22 57 52.0           ~ 1 0
66 CXOU J161708.2-225617 X 16 17 08.27 -22 56 17.1           ~ 1 0
67 CXOU J161709.1-225529 X 16 17 09.20 -22 55 29.1           ~ 1 0
68 CXOU J161709.8-230034 X 16 17 09.81 -23 00 34.7           ~ 1 0
69 CXOU J161712.3-225313 X 16 17 12.34 -22 53 13.2           ~ 2 0
70 CXOU J161712.5-230034 X 16 17 12.46 -23 00 32.8           ~ 1 0
71 CXOU J161713.6-225324 X 16 17 13.63 -22 53 24.1           ~ 2 0
72 CXOU J161713.7-225549 X 16 17 13.79 -22 55 49.8           ~ 1 0
73 HD 146457 * 16 17 14.6563025256 -22 55 19.933033656   8.78 8.46     A5III/IV 31 0
74 CXOU J161715.8-225516 X 16 17 15.8285399880 -22 55 18.162938316           M4.75 4 0
75 CXOU J161716.0-225857 X 16 17 16.04 -22 58 57.4           ~ 1 0
76 CXOU J161716.0-225858 X 16 17 16.05 -22 58 58.9           ~ 1 0
77 CXOU J161716.8-225608 X 16 17 16.88 -22 56 08.7           ~ 1 0
78 2MASS J16171698-2259541 Or* 16 17 16.9883132832 -22 59 54.140242812           M4 10 0
79 CXOU J161718.7-225512 X 16 17 18.71 -22 55 12.0           ~ 1 0
80 CXOU J161719.5-225705 X 16 17 19.56 -22 57 05.3           ~ 1 0
81 CXOU J161721.7-225415 X 16 17 21.75 -22 54 15.2           ~ 2 0
82 CGKB B LXB 17 40 41.468 -53 40 04.43           ~ 25 0
83 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
84 [PLV2002] CX1 LXB 17 48 52.163 -20 21 32.40           ~ 213 1
85 NGC 6440 GlC 17 48 52.67 -20 21 34.5           ~ 592 0
86 PSR J1824-2452A Psr 18 24 32.009 -24 52 11.10           ~ 529 2
87 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 821 0
88 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0

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