2003A&A...403L..11G


Query : 2003A&A...403L..11G

2003A&A...403L..11G - Astronomy and Astrophysics, volume 403, L11-14 (2003/5-3)

Discovery of a quiescent neutron star binary in the globular cluster M13.

GENDRE B., BARRET D. and WEBB N.

Abstract (from CDS):

We have discovered with XMM-Newton an X-ray source in the core of the globular cluster M13, whose X-ray spectral properties suggest that it is a quiescent neutron star X-ray binary. The spectrum can be well fitted with a pure hydrogen atmosphere model, with T=76±3eV, R=12.8±0.4km and an X-ray luminosity of 7.3±0.6x1032ergs/s. In the light of this result, we have discovered a strong correlation between the stellar encounter rate and the number of quiescent neutron stars found in the ten globular clusters observed so far by either XMM-Newton or Chandra. This result lends strong support to the idea that these systems are primarily produced by stellar encounters in the core of globular clusters.

Abstract Copyright:

Journal keyword(s): globular clusters - stars: neutron - X-rays: general

Nomenclature: Table 1: [GBW2003b] JHHMMSS.s+DDMMSS.s N=8.

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3740 0
2 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 3253 0
3 [GBW2003b] J164137.9+362826.3 X 16 41 37.93 +36 28 25.8           ~ 1 0
4 XMMU J164138.3+362627 X 16 41 38.209 +36 26 26.71           ~ 2 0
5 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2108 0
6 XMMU J164142.7+362806 X 16 41 42.480 +36 28 07.52           ~ 4 0
7 [GBW2003b] J164142.5+362553.0 X 16 41 42.5 +36 25 53           ~ 1 0
8 2XMM J164143.6+362758 LXB 16 41 43.761 +36 27 57.84           ~ 6 0
9 XMMU J164146.8+362729 X 16 41 46.838 +36 27 30.93           ~ 2 0
10 XMMU J164149.0+362644 X 16 41 49.019 +36 26 44.73           ~ 2 0
11 [GBW2003b] J164149.9+362618.7 X 16 41 49.9 +36 26 19           ~ 1 0
12 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 285 0
13 NGC 6397 GlC 17 40 42.09 -53 40 27.6   7.39 5.17     ~ 1886 1
14 NGC 6440 GlC 17 48 52.67 -20 21 34.5   12.01 10.10     ~ 508 1
15 M 28 GlC 18 24 32.89 -24 52 11.4           ~ 720 0
16 M 22 GlC 18 36 23.94 -23 54 17.1   7.16 6.17     ~ 1300 0
17 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1904 0

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2022.08.18-03:42:09

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