2014MNRAS.442.2381N

Query : 2014MNRAS.442.2381N

2014MNRAS.442.2381N - Mon. Not. R. Astron. Soc., 442, 2381-2391 (2014/August-2)

The M 4 Core Project with HST - III. Search for variable stars in the primary field.

NASCIMBENI V., BEDIN L.R., HEGGIE D.C., VAN DEN BERG M., GIERSZ M., PIOTTO G., BROGAARD K., BELLINI A., MILONE A.P., RICH R.M., POOLEY D., ANDERSON J., UBEDA L., ORTOLANI S., MALAVOLTA L., CUNIAL A. and PIETRINFERNI A.

Abstract (from CDS):

We present the results of a photometric search for variable stars in the core of the Galactic globular cluster Messier 4 (M 4). The input data are a large and unprecedented set of deep Hubble Space Telescope WFC3 images (large programme GO-12911; 120 orbits allocated), primarily aimed at probing binaries with massive companions by detecting their astrometric wobbles. Though these data were not optimized to carry out a time-resolved photometric survey, their exquisite precision, spatial resolution and dynamic range enabled us to firmly detect 38 variable stars, of which 20 were previously unpublished. They include 19 cluster-member eclipsing binaries (confirming the large binary fraction of M 4), RR Lyrae and objects with known X-ray counterparts. We improved and revised the parameters of some among published variables.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): techniques: photometric - binaries: general - stars: variables: general - globular clusters: individual: NGC 6121

VizieR on-line data: <Available at CDS (J/MNRAS/442/2381): table1.dat table2.dat>

Nomenclature: Table 1: [NBH2014] NNNN N=38 among (Nos 275-9050).

CDS comments: CX NN = [BPH2004] CX NN; K NN = [KTK97] VNN; CNN = Cl* NGC 6121 SAW V NN.

Simbad objects: 41

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Number of rows : 41
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 [NBH2014] 7202 EB* 16 23 28.53 -26 31 34.0           ~ 1 0
2 Cl* NGC 6121 SAW V69 EB* 16 23 31.34 -26 31 48.4 18.27 18.18 17.32 16.74 16.21 ~ 7 0
3 Cl* NGC 6121 SAW V71 El* 16 23 31.51 -26 30 57.5 17.84 17.67 16.70 16.03 15.39 ~ 6 0
4 Cl* NGC 6121 SAW V37 RR* 16 23 31.5745488336 -26 31 30.760484268 14.45 13.90 13.37 12.99 12.51 ~ 10 0
5 [KTR2013] V66 EB* 16 23 32.26 -26 31 41.1 17.71 17.621 16.843 16.20 15.64 ~ 13 0
6 [BPH2004] CX 11 V* 16 23 32.40 -26 30 45.5           ~ 2 0
7 Cl* NGC 6121 SAW V16 RR* 16 23 32.4789935064 -26 30 23.069688408 14.47 14.05 13.34 12.85 12.31 ~ 22 0
8 Cl* NGC 6121 SAW V38 RR* 16 23 32.8436459640 -26 33 03.617520624 14.59 14.20 13.42 12.87 12.29 ~ 18 0
9 [NBH2014] 760 EB* 16 23 33.15 -26 33 12.6           ~ 1 0
10 Cl* NGC 6121 SAW V70 EB* 16 23 33.28 -26 31 08.0   17.97 17.03     ~ 6 0
11 [BPH2004] CX 25 EB* 16 23 33.451 -26 32 30.00           ~ 2 0
12 Cl* NGC 6121 SAW V68 EB* 16 23 34.35 -26 32 01.8 19.32 18.26 17.03 16.26 15.49 ~ 7 0
13 [NBH2014] 6873 EB* 16 23 34.37 -26 30 58.9           ~ 1 0
14 [NBH2014] 9050 EB? 16 23 34.44 -26 29 59.4           ~ 1 0
15 [BPH2004] CX 21 EB* 16 23 34.60 -26 32 04.6           ~ 2 0
16 Cl* NGC 6121 SAW V39 RR* 16 23 34.6513169424 -26 32 52.243941012 14.66 14.20 13.43 12.89 12.29 ~ 19 0
17 Cl* NGC 6121 SAW V18 RR* 16 23 34.6783837464 -26 31 04.688497560 14.66 14.02 13.36 12.88 12.35 ~ 20 0
18 [BPH2004] CX 28 EB* 16 23 34.99 -26 32 24.2           ~ 2 0
19 [NBH2014] 2992 EB? 16 23 35.08 -26 32 04.0           ~ 1 0
20 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
21 NGC 6121 228 RR* 16 23 35.3727806422 -26 32 36.045371983 14.27 13.72 13.19 12.80 12.33 ~ 9 0
22 [NBH2014] 5286 EB* 16 23 35.54 -26 31 20.3           ~ 1 0
23 Cl* NGC 6121 SAW V21 RR* 16 23 35.9070859824 -26 31 33.810926844 14.40 13.88 13.19 12.70 12.16 ~ 18 0
24 [NBH2014] 6955 RR* 16 23 36.4084266240 -26 30 42.902353476 14.37 13.89 13.32 12.92 12.45 ~ 8 0
25 Cl* NGC 6121 SAW V40 RR* 16 23 36.4695071760 -26 30 44.334317088     13.24     ~ 15 0
26 [NBH2014] 7820 EB* 16 23 36.63 -26 30 21.8           ~ 1 0
27 [NBH2014] 3487 EB* 16 23 36.65 -26 31 43.4           ~ 2 0
28 Cl* NGC 6121 SAW V67 EB* 16 23 36.81 -26 31 44.1 17.27 17.12 16.25 15.65 15.09 ~ 10 0
29 [BPH2004] CX 20 EB* 16 23 36.90 -26 31 39.2           ~ 2 0
30 Cl* NGC 6121 SAW V22 RR* 16 23 36.9312595248 -26 30 13.098672072 14.60 14.08 13.33 12.81 12.24 hF5.5 19 0
31 [NBH2014] 275 EB* 16 23 37.11 -26 33 01.8           ~ 1 0
32 Cl* NGC 6121 SAW V23 RR* 16 23 37.3099879632 -26 31 56.282261664 14.28 13.75 13.19 12.78 12.41 ~ 18 0
33 [NBH2014] 3708 EB* 16 23 37.52 -26 31 33.3           ~ 1 0
34 Cl* NGC 6121 SAW V24 RR* 16 23 38.0192937192 -26 30 41.866754724 14.60 14.02 13.33 12.84 12.31 ~ 23 0
35 [BPH2004] CX 3 EB? 16 23 38.09 -26 31 37.8           ~ 2 0
36 Cl* NGC 6121 SAW V72 EB* 16 23 38.4880359196 -26 32 10.911560523 16.76 16.46 15.83 15.40 15.01 ~ 31 0
37 Cl* NGC 6121 SAW V25 RR* 16 23 39.3979780920 -26 30 21.395047284 14.07 13.94 13.23 12.74 12.20 ~ 23 0
38 [NBH2014] 3575 EB* 16 23 39.71 -26 31 20.0           ~ 1 0
39 [NBH2014] 1001 EB? 16 23 41.48 -26 32 05.2           ~ 1 0
40 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
41 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0

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