2000ApJ...537..312F

Query : 2000ApJ...537..312F

2000ApJ...537..312F - Astrophys. J., 537, 312-318 (2000/July-1)

Another faint ultraviolet object associated with a globular cluster X-ray source: the case of M 92.

FERRARO F.R., PALTRINIERI B., ROOD R.T., FUSI PECCI F. and BUONANNO R.

Abstract (from CDS):

The core of the metal-poor galactic globular cluster M92 (NGC 6341) has been observed with Wide Field Planetary Camera 2 (WFPC2) on the Hubble Space Telescope through visual, blue, and mid-UV filters in a program devoted to studying the evolved stellar population in a selected sample of galactic globular clusters. In the UV (m255, m255-U) color-magnitude diagram, we have discovered a faint ``UV-dominant'' object. This star lies within the error box of a low-luminosity globular cluster X-ray source (LLGCX) recently found in the core of M92. The properties of the UV star discovered in M92 are very similar to those of other UV stars found in the core of some clusters (M13, 47 Tuc, M80, etc.)–all of them are brighter in the UV than in the visible and are located in the vicinity of a LLGCX. We suggest that these stars are a new subclass of cataclysmic variables.

Abstract Copyright: ∼

Journal keyword(s): Stars: Evolution - globular clusters: individual (M92) - Stars: Novae, Cataclysmic Variables - Ultraviolet: Stars

Nomenclature: Cl* NGC 6341 FPR NNNNN N=1 (No. 8203) among about 20000.

CDS comments: p. 316 : X0021.8-7221 = 1E 002151-7221.5, X9 and X19 are [HJV94] 9, 19

Simbad objects: 31

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Number of rows : 31
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 RX J0021.8-7221 LXB 00 24 04.263 -72 04 57.97 18.868   19.772   19.316 ~ 78 0
2 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
3 1E 002151-7221.5 X 00 24 05.8 -72 04 56           ~ 9 0
4 Cl* NGC 104 MAM M54898 CV* 00 24 06.013 -72 04 56.20 19.383   20.411   19.273 ~ 33 0
5 V* TV Col CV* 05 29 25.5292422792 -32 49 03.900212364   14.219 13.846 14.181   K2V 362 0
6 V* U Gem CV* 07 55 05.2324414746 +22 00 05.044127985   15.3 14.54     DA 1135 0
7 V* SU UMa CV* 08 12 28.2695986944 +62 36 22.427676396           B2 516 0
8 V* Z Cam CV* 08 25 13.1986690656 +73 06 39.284964108   12.006 11.927 11.712   ~ 554 0
9 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
10 Cl* NGC 5904 SAW V101 CV* 15 18 14.4893282426 +02 05 34.901910063           ~ 31 0
11 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
12 V* T Sco No* 16 16 59.7637129856 -22 59 44.681457206       16.266   ~ 72 0
13 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
14 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
15 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
16 Cl* NGC 6205 FPF 23081 CV* 16 41 43.68 +36 28 04.7     22.192     ~ 5 0
17 Cl* NGC 6205 FPF 21429 CV* 16 41 45.1 +36 27 39     21.046     ~ 5 0
18 Cl* NGC 6341 FPR 8203 CV* 17 17 06.56 +43 08 24.4           ~ 2 0
19 [FLM96] M 92 C X 17 17 06.8 +43 08 24           ~ 7 0
20 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
21 Cl* NGC 6397 SAW V12 CV* 17 40 41.597 -53 40 19.30   18.51 17.95 17.88   ~ 23 0
22 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
23 Cl* NGC 6397 SAW V34 CV* 17 40 42.306 -53 40 28.70   20.02   18.87   ~ 25 0
24 V* V1139 Ara CV* 17 40 42.651 -53 40 19.30   19.10   18.52   ~ 22 0
25 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
26 V* V1223 Sgr CV* 18 55 02.3108012664 -31 09 49.584656268           ~ 347 0
27 Cl* NGC 6752 BRS 2 CV* 19 10 51.511 -59 58 56.85           ~ 18 0
28 Cl* NGC 6752 SAW V25 CV* 19 10 51.586 -59 59 01.73   21.09   20.10   ~ 18 0
29 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
30 V* AO Psc CV* 22 55 17.9860863984 -03 10 39.981831564           ~ 327 0
31 [G93] NGC 6752 B X ~ ~           ~ 3 1

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