2017MNRAS.465.2489T

Query : 2017MNRAS.465.2489T

2017MNRAS.465.2489T - Mon. Not. R. Astron. Soc., 465, 2489-2504 (2017/February-3)

Variable stars in the bulge globular cluster NGC 6401.

TSAPRAS Y., ARELLANO FERRO A., BRAMICH D.M., FIGUERA JAIMES R., KAINS N., STREET R., HUNDERTMARK M., HORNE K., DOMINIK M. and SNODGRASS C.

Abstract (from CDS):

We present a study of variable stars in globular cluster NGC 6401. The cluster is only 5 .○3 away from the Galactic Centre and suffers from strong differential reddening. The photometric precision afforded us by difference image analysis resulted in improved sensitivity to variability in formerly inaccessible interior regions of the cluster. We find 23 RRab and 11 RRc stars within one cluster radius (2.4 arcmin), for which we provide coordinates, finder-charts and time series photometry. Through Fourier decomposition of the RR Lyrae star light curves we derive a mean metallicity of [Fe/H]UVES = -1.13 ± 0.06 ([Fe/H]ZW = -1.25 ± 0.06), and a distance of d ≃ 6.35 ± 0.81 kpc. Using the RR Lyrae population, we also determine that NGC 6401 is an Oosterhoff type I cluster.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: variables: RR Lyrae - globular clusters: individual: NGC 6401 - globular clusters: individual: NGC 6401

VizieR on-line data: <Available at CDS (J/MNRAS/465/2489): table34.dat table2.dat>

Nomenclature: Tables 3-4: [TAB2017] VNN N=35 among (Nos 2-37), [TAB2017] LPVNN (Nos 1-12), [TAB2017] EN (No 1).

Simbad objects: 81

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Number of rows : 81
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 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
2 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
3 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
4 M 9 GlC 17 19 11.78 -18 30 58.5   9.36 8.42     ~ 348 0
5 NSV 9288 Mi* 17 38 02.7205473192 -23 46 41.527419600     17.226   12.710 ~ 5 0
6 2MASS J17380803-2347168 LP? 17 38 08.0328024552 -23 47 16.777903344           ~ 1 0
7 OGLE BLG-RRLYR-23724 RR* 17 38 09.1835172536 -23 59 31.469388729     18.670   17.509 ~ 5 0
8 OGLE BLG-RRLYR-23731 RR* 17 38 09.5396742072 -24 01 35.888925540     17.953   16.327 ~ 13 0
9 2MASS J17381233-2351558 LP? 17 38 12.3509453664 -23 51 55.600273224           ~ 2 0
10 2MASS J17381591-2400047 LP* 17 38 15.9170922744 -24 00 04.713737004           ~ 2 0
11 OGLE BLG-RRLYR-23799 RR* 17 38 16.5860278464 -23 46 36.852025800     17.014   15.359 ~ 11 0
12 NSV 9307 LP* 17 38 17.6808723312 -24 01 30.070565832           ~ 2 0
13 [TAB2017] LPV8 LP? 17 38 18.8265880920 -23 51 04.367263536           ~ 1 0
14 V* V2226 Oph Mi* 17 38 21.2150001456 -23 50 43.846222776   13.3       ~ 6 0
15 V* V2227 Oph Mi* 17 38 21.7825530696 -23 55 22.822498380   13.6 17.090   11.684 ~ 7 0
16 OGLE BLG-RRLYR-23863 RR* 17 38 22.9522384512 -23 51 51.816724488     17.827   16.094 ~ 9 0
17 ATO J264.5984-23.8575 LP* 17 38 23.6435901336 -23 51 26.949579588           ~ 3 0
18 OGLE BLG-RRLYR-23880 RR* 17 38 24.4118950848 -23 51 49.411763820     18.073   16.316 ~ 15 0
19 OGLE BLG-RRLYR-23926 RR* 17 38 28.1421596424 -23 54 24.392419740     18.107   16.384 ~ 10 0
20 2MASS J17382988-2357172 LP? 17 38 29.8245807552 -23 57 17.277254064           ~ 1 0
21 2MASS J17383100-2348479 LP* 17 38 31.0062727176 -23 48 47.965470984           ~ 2 0
22 OGLE BLG-RRLYR-23969 RR* 17 38 31.6056020592 -23 50 06.665816112     19.330   17.385 ~ 6 0
23 OGLE BLG-RRLYR-23985 RR* 17 38 32.9959983306 -23 55 05.007098254     18.396   16.636 ~ 6 0
24 [TAB2017] LPV4 LP? 17 38 33.2595550848 -23 58 38.124835860           ~ 2 0
25 OGLE BLG-RRLYR-23999 RR* 17 38 33.5361173760 -23 56 53.070275868     18.060   16.210 ~ 14 0
26 OGLE BLG-RRLYR-24002 RR* 17 38 33.8166329568 -23 54 04.110273144     17.605   16.043 ~ 12 0
27 OGLE BLG-RRLYR-24004 RR* 17 38 33.9496122120 -23 54 26.754099552     17.623   15.958 ~ 12 0
28 OGLE BLG-RRLYR-24006 RR* 17 38 33.9981089376 -23 54 41.082282900     18.161   16.363 ~ 15 0
29 OGLE BLG-RRLYR-24007 RR* 17 38 34.0685116608 -23 59 28.458170880     19.293   17.393 ~ 12 0
30 OGLE BLG-RRLYR-24011 RR* 17 38 34.1384608248 -23 55 07.442603076     18.400   16.652 ~ 6 0
31 OGLE BLG-RRLYR-24021 RR* 17 38 34.7784976632 -23 55 05.305490112     18.162   16.499 ~ 7 0
32 OGLE BLG-RRLYR-24024 RR* 17 38 34.8517012536 -23 54 35.802563760     17.968   16.226 ~ 10 0
33 OGLE BLG-RRLYR-24025 RR* 17 38 34.8563881488 -23 54 40.852614456     17.975   16.445 ~ 6 0
34 OGLE BLG-RRLYR-24026 RR* 17 38 34.8741457680 -23 57 13.742669016     17.951   16.266 ~ 13 0
35 OGLE BLG-RRLYR-24030 RR* 17 38 35.1014234050 -23 54 31.025328151     18.745   17.354 ~ 8 0
36 OGLE BLG-RRLYR-24036 RR* 17 38 35.6122579632 -23 54 49.303851948     17.951   16.254 ~ 10 0
37 OGLE BLG-RRLYR-24037 RR* 17 38 35.6252285352 -23 54 52.109479980     17.934   16.051 ~ 8 0
38 OGLE BLG-RRLYR-24039 RR* 17 38 35.6844895776 -23 55 26.546313504     18.186   16.452 ~ 7 0
39 OGLE BLG-RRLYR-24043 RR* 17 38 35.9829781080 -23 55 58.286583732     18.475   16.588 ~ 8 0
40 Cl* NGC 6401 SAW V20 * 17 38 36.0 -23 54 31           ~ 2 0
41 OGLE BLG-RRLYR-24044 RR* 17 38 36.0712300680 -23 50 17.744549496     18.067   16.403 ~ 8 0
42 OGLE BLG-RRLYR-24047 RR* 17 38 36.2640988508 -23 55 03.130687525     18.190   16.486 ~ 7 0
43 Cl* NGC 6401 SAW V39 LP? 17 38 36.3379896558 -23 54 20.797830438           ~ 1 0
44 OGLE BLG-RRLYR-24049 RR* 17 38 36.3458044888 -23 54 35.663807822     17.640   16.301 ~ 10 0
45 OGLE BLG-RRLYR-24050 RR* 17 38 36.4462326294 -24 01 15.307355028     18.277   16.653 ~ 6 0
46 OGLE BLG-RRLYR-24055 RR* 17 38 36.7433027808 -23 54 39.497450004     17.673   15.835 ~ 10 0
47 OGLE BLG-RRLYR-24056 RR* 17 38 36.7563120796 -23 54 12.346386912     17.788   16.258 ~ 7 0
48 OGLE BLG-RRLYR-24058 RR* 17 38 36.7774538424 -23 51 51.588152892     17.952   16.201 ~ 12 0
49 OGLE BLG-RRLYR-24060 RR* 17 38 36.7846107456 -23 54 35.348854104     17.713   15.998 ~ 8 0
50 2MASS J17383687-2349235 LP? 17 38 36.8683656720 -23 49 23.613976236           ~ 1 0
51 NGC 6401 GlC 17 38 36.93 -23 54 31.5   11.31 10.71     ~ 203 0
52 OGLE BLG-RRLYR-24062 RR* 17 38 36.9815341199 -23 54 35.962212923     17.209   15.836 ~ 6 0
53 Cl* NGC 6401 SAW V1 * 17 38 37.23 -23 54 01.9           ~ 2 0
54 OGLE BLG-ECL-52483 EB* 17 38 37.4115555192 -24 00 52.150758804     18.483   16.332 ~ 3 0
55 OGLE BLG-RRLYR-24066 RR* 17 38 37.4160558504 -23 47 53.658253752     21.666   18.496 ~ 8 0
56 OGLE BLG-RRLYR-24075 RR* 17 38 37.7669029440 -23 55 09.797818980     18.310   16.190 ~ 12 0
57 OGLE BLG-RRLYR-24078 RR* 17 38 38.1752023752 -23 53 58.444465272         16.249 ~ 12 0
58 [TAB2017] V10 RR* 17 38 38.5550592144 -23 53 52.641020220           ~ 6 0
59 [TAB2017] V8 RR* 17 38 38.6980978392 -23 55 25.242060576           ~ 3 0
60 [TAB2017] V14 RR* 17 38 39.3497598960 -23 54 39.218642388           ~ 5 0
61 OGLE BLG-RRLYR-24100 RR* 17 38 39.8914699488 -23 52 27.291129708     17.304   15.927 ~ 8 0
62 OGLE BLG-RRLYR-24121 RR* 17 38 40.8029903760 -23 54 08.509754124     17.599   15.976 ~ 14 0
63 OGLE BLG-RRLYR-24124 RR* 17 38 40.8443076408 -23 51 59.252639508     17.681   16.118 ~ 7 0
64 OGLE BLG-RRLYR-24126 RR* 17 38 40.9710874320 -23 54 32.561442000     17.611   16.020 ~ 14 0
65 Cl* NGC 6401 SAW V38 LP? 17 38 41.0026019112 -23 56 26.898902232           ~ 2 0
66 OGLE BLG-T2CEP-538 WV* 17 38 41.2869392616 -23 54 35.077076496     16.572   14.900 ~ 11 0
67 OGLE BLG-RRLYR-24131 RR* 17 38 41.6552128392 -23 52 57.106222320     17.165   15.572 ~ 12 0
68 ATO J264.6738-23.9062 LP* 17 38 41.7249243072 -23 54 22.620184452           ~ 3 0
69 OGLE BLG-RRLYR-24138 RR* 17 38 42.5604244824 -24 01 22.642672116     18.306   16.698 ~ 6 0
70 OGLE BLG-RRLYR-24142 RR* 17 38 42.8393317464 -23 52 57.532956564     17.704   16.200 ~ 6 0
71 OGLE BLG-RRLYR-24148 RR* 17 38 43.0403189184 -23 52 35.568075756     17.836   16.192 ~ 12 0
72 OGLE BLG-RRLYR-24160 RR* 17 38 43.7804165040 -23 56 12.379335288     17.660   16.073 ~ 13 0
73 OGLE BLG-RRLYR-24182 RR* 17 38 45.5189122097 -23 53 55.143067517     17.692   16.076 ~ 11 0
74 NSV 9349 LP* 17 38 46.0773082392 -23 47 33.470546244           ~ 2 0
75 OGLE BLG-RRLYR-24255 RR* 17 38 50.6144533800 -23 54 11.926691388     17.724   15.821 ~ 12 0
76 OGLE BLG-RRLYR-24293 RR* 17 38 53.9489538840 -23 53 30.414471324     18.229   16.482 ~ 11 0
77 OGLE BLG-RRLYR-24325 RR* 17 38 56.6584657512 -23 56 19.110443712     18.266   16.532 ~ 11 0
78 OGLE BLG-RRLYR-24383 RR* 17 39 02.2167498672 -24 00 54.464460732     17.957   16.170 ~ 13 0
79 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
80 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
81 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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