2002MNRAS.330..737S

Query : 2002MNRAS.330..737S

2002MNRAS.330..737S - Mon. Not. R. Astron. Soc., 330, 737-754 (2002/March-1)

Variable stars in the field of open cluster NGC 6819.

STREET R.A., HORNE K., LISTER T.A., PENNY A., TSAPRAS Y., QUIRRENBACH A., SAFIZADEH N., COOKE J., MITCHELL D. and COLLIER CAMERON A.

Abstract (from CDS):

We report on the discovery of 25 variable stars plus 13 suspected variables found in the field of the open cluster NGC 6819. The stars were identified from time-series photometric data obtained on the Isaac Newton Telescope, La Palma, during two observing runs covering the 19 nights between 1999 June (formula) and 1999 July (formula). The variables found include 12 eclipsing binaries with an additional three suspected, nine BY Draconis systems, plus four variables of other types, including one star believed to be a Cepheid. Three of the 15 eclipsing binaries are believed to be cluster members. Details of a further 10 suspected variable stars are also included.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): binaries: eclipsing - stars: variables: other - open clusters and associations: individual: NGC 6819

Nomenclature: Tables 2, 3, 4: Cl* NGC 6819 SHLP NNNN N=38 among (Nos 1753-9440).

CDS comments: Numbering in this paper is different from the one used in 2003MNRAS.340.1287S and 2005MNRAS.358..795S (see 2005MNRAS.358..795S, paragr.4 p.796).

Simbad objects: 42

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Number of rows : 42
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 V* BY Dra BY* 18 33 55.7720712062 +51 43 08.897780286 10.22 9.23   8.733   K4Ve+K7.5Ve 639 0
2 V* V2374 Cyg RR* 19 40 21.82 +40 12 08.5     20.6 19.700   ~ 4 0
3 V* V2375 Cyg EB* 19 40 30.5000541480 +40 16 23.858427144   21.017 19.56 18.759   ~ 7 0
4 V* V2376 Cyg EB* 19 40 31.55 +40 12 51.8     20.5 20.200   ~ 4 0
5 V* V2377 Cyg Ro* 19 40 32.0127109920 +40 10 40.094950368   20.845 18.40     ~ 3 0
6 Cl* NGC 6819 SHLP 37318 V*? 19 40 33.50 +40 15 57.6   20.041 18.520 17.420   ~ 2 0
7 V* V2379 Cyg Ce* 19 40 41.6103619056 +40 07 46.668206676     19.2 18.800   ~ 3 0
8 Cl* NGC 6819 SHLP 36729 V*? 19 40 41.72 +40 13 37.7   20.285 19.499 18.969   ~ 2 0
9 V* V2380 Cyg EB* 19 40 42.72 +40 13 25.6   21.373 20.37 19.674   ~ 6 0
10 V* V2381 Cyg EB* 19 40 44.8368552312 +40 09 22.857940692   18.01 17.35 16.959   ~ 7 0
11 V* V2382 Cyg BY* 19 40 48.4478653800 +40 16 19.124991516     20.68 20.177   ~ 3 0
12 V* V2383 Cyg EB* 19 40 53.0609595005 +40 11 17.261871273   21.202 20.06 19.256   ~ 5 0
13 V* V2385 Cyg EB* 19 40 59.64 +40 08 25.0   20.633 19.81 19.311   ~ 4 0
14 V* V2386 Cyg EB* 19 41 05.84 +40 12 54.3   21.627 20.72 20.324   ~ 4 0
15 V* V2387 Cyg BY* 19 41 09.7510280232 +40 10 37.893378900   20.685 19.12     ~ 3 0
16 V* V2388 Cyg EB* 19 41 10.3269891432 +40 15 18.686840184   17.27 16.53   15.64 ~ 15 0
17 V* V2389 Cyg EB* 19 41 11.7338973160 +40 06 39.588309988   18.62 18.04 17.972 17.36 ~ 7 0
18 Cl* NGC 6819 SHLP 34167 V*? 19 41 12.53 +40 12 06.1     18.7     ~ 2 0
19 Cl* NGC 6819 SHLP 33948 BY* 19 41 14.7257967936 +40 12 14.064501420   19.252 18.247 17.677   ~ 7 0
20 V* V2390 Cyg EB* 19 41 15.2819096640 +40 12 31.627973196   19.082 18.11 17.496   ~ 7 0
21 NGC 6819 OpC 19 41 18.3 +40 11 19   8.21 7.3     ~ 719 0
22 V* V2392 Cyg BY* 19 41 22.1860774176 +40 10 11.199975060     19.1 18.610   ~ 3 0
23 V* V2393 Cyg RS* 19 41 22.6117774560 +40 11 06.983881404   18.34 17.37 17.054 16.28 ~ 14 0
24 V* V2394 Cyg EB* 19 41 22.9168927440 +40 14 39.294896028   19.20 18.19 17.615 16.82 ~ 11 0
25 Cl* NGC 6819 SHLP 32916 V*? 19 41 23.67 +40 11 52.2     17.0     ~ 2 0
26 V* V2395 Cyg BY* 19 41 26.7724242840 +40 10 49.314727848     18.2 17.560   ~ 7 0
27 Cl* NGC 6819 SHLP 32455 * 19 41 28.1607520224 +40 12 32.761037880   18.160 17.269 16.809   ~ 7 0
28 V* V2396 Cyg EB* 19 41 28.5850745304 +40 16 24.683341692   17.99 17.11 16.746 16.07 ~ 10 0
29 Cl* NGC 6819 SHLP 31813 V*? 19 41 34.2449118000 +40 06 34.886694312   18.064 17.027     ~ 2 0
30 V* V2398 Cyg BY* 19 41 35.8810310880 +40 13 53.170798944     19.76 18.958   ~ 3 0
31 V* V2399 Cyg BY* 19 41 36.0523342368 +40 16 19.753488336     19.94     ~ 3 0
32 Cl* NGC 6819 SHLP 31402 EB* 19 41 39.1508391000 +40 13 26.631940656   21.107 19.693 18.893   ~ 3 0
33 V* V2400 Cyg BY* 19 41 41.6159304744 +40 07 02.963423388   20.413 18.83 17.633   ~ 4 0
34 V* V2401 Cyg Ro* 19 41 41.6902016544 +40 11 41.312452128   19.590 18.47 17.824   ~ 3 0
35 Cl* NGC 6819 SHLP 31078 V*? 19 41 42.74 +40 08 40.2   20.526 19.427 18.837   ~ 2 0
36 V* V2402 Cyg BY* 19 41 44.4617316912 +40 14 23.613767736     18.76 18.225   ~ 3 0
37 Cl* NGC 6819 SHLP 30608 V*? 19 41 48.92 +40 14 12.3   19.170 18.334     ~ 2 0
38 V* V2403 Cyg BY* 19 41 51.3781995912 +40 12 33.467241132   20.795 19.40 18.500   ~ 3 0
39 V* V2404 Cyg EB* 19 41 52.2660066584 +40 12 23.679442187   21.460 20.08 19.378   ~ 7 0
40 V* V2407 Cyg Ro* 19 42 11.6648366688 +40 06 48.577914648   19.079 17.61     ~ 3 0
41 NGC 6940 OpC 20 34 28.4 +28 17 07           ~ 215 0
42 NGC 7789 OpC 23 57 19.4 +56 43 28   7.68 6.7     ~ 575 0

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