2005MNRAS.357..325H

Query : 2005MNRAS.357..325H

2005MNRAS.357..325H - Mon. Not. R. Astron. Soc., 357, 325-332 (2005/February-2)

The X-ray source population of the globular cluster M15: Chandra high-resolution imaging.

HANNIKAINEN D.C., CHARLES P.A., VAN ZYL L., KONG A.K.H., HOMER L., HAKALA P., NAYLOR T. and DAVIES M.B.

Abstract (from CDS):

The globular cluster M15 was observed on three occasions with the High Resolution Camera on-board Chandra in 2001 in order to investigate the X-ray source population in the cluster centre. After subtraction of the two bright central sources, four faint sources were identified within 50 arcsec of the core. One of these sources is probably the planetary nebula K648, making this the first positive detection of X-rays from a planetary nebula inside a globular cluster. Another two are identified with UV variables (one previously known), which we suggest are cataclysmic variables (CVs). The nature of the fourth source is more difficult to ascertain, and we discuss whether it is possibly a quiescent soft X-ray transient or also a CV.

Abstract Copyright: 2005 RAS

Journal keyword(s): stars: dwarf novae - planetary nebulae: individual: K648 - globular clusters: individual: M15 - X-rays: binaries

Nomenclature: Table 3: [HCV2005] A (Nos A-D).

CDS comments: The planetary nebula K648 = PN Ku 648

Simbad objects: 20

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Number of rows : 20
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 V* VW Hyi CV* 04 09 11.3967378648 -71 17 41.554528260   12.786 12.543 14.160   DQ 661 0
3 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
4 V* V822 Cen LXB 14 58 21.9347842080 -31 40 07.515432768 11.95 12.85 12.8     K3-K7V 555 0
5 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
6 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
7 NGC 6440 GlC 17 48 52.67 -20 21 34.5           ~ 592 0
8 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
9 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
10 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1186 1
11 HD 184738 PN 19 34 45.2337620448 +30 30 58.950651240   10.41 10.44     [WC9] 976 0
12 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
13 [HCV2005] C CV* 21 29 57.34 +12 10 43.7           ~ 6 0
14 CXOU J212958.1+121002 XB* 21 29 58.06 +12 10 02.6     16.6     ~ 87 1
15 [HCV2005] B CV* 21 29 58.226 +12 10 11.40           ~ 5 0
16 4U 2129+12 LXB 21 29 58.3124 +12 10 02.670 14.50 15.70 15.8     ~ 326 1
17 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
18 Cl* NGC 7078 CCV V1 CV* 21 29 58.36 +12 10 01.4           ~ 9 0
19 PN Ps 1 PN 21 29 59.3972661392 +12 10 26.275343735   13.39 14.06     sdO 295 0
20 V* SS Cyg CV* 21 42 42.8034497592 +43 35 09.867842484 11.07 12.651 12.032 9.326   K5V 1324 1

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