1998A&A...339..423M

Query : 1998A&A...339..423M

1998A&A...339..423M - Astronomy and Astrophysics, volume 339, 423-430 (1998/11-2)

Red giants in open clusters. VIII. NGC 752.

MERMILLIOD J.-C., MATHIEU R.D., LATHAM D.W. and MAYOR M.

Abstract (from CDS):

The results of an 18-year radial-velocity survey of 30 red giants in the field of the open cluster NGC 752 are presented. The membership of 15 stars is confirmed. Four spectroscopic binaries have been discovered among the members and three orbits have been determined for H75, 110 and 208, with periods of 3321, 127 and 5276 days respectively. The binary frequency (27%) is normal. A search for additional members in a wide surrounding area (2°) yielded two possible new members: both are clump red giant candidates. The red giant distribution in the colour-magnitude diagram is somewhat unusual, with a clump containing 8 stars and a second, fainter feature extending to the blue, defined by 3 or 4 stars, which is not accounted for by theoretical isochrones.

Abstract Copyright: ∼

Journal keyword(s): techniques: radial velocities - binaries: spectroscopic - Hertzsprung-Russel (HR) diagram - open clusters and associations: individual: NGC 752

VizieR on-line data: <Available at CDS (J/A+A/339/423): table4a.dat table4b.dat>

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 11216 * 01 51 01.4465117544 +37 33 15.089387436   9.30 7.76     K0 14 0
2 BD+37 386 * 01 51 03.5130009048 +37 46 34.245108768   10.27 9.16     K0 18 0
3 HD 11224 LP* 01 51 09.2921535984 +38 01 26.213437452   8.89 7.33     M6 20 0
4 BD+36 328 * 01 51 30.1182079584 +37 35 38.100523272   10.11 9.07     K0 15 0
5 BD+37 392 * 01 52 01.1962065192 +37 56 03.623687412   10.65 9.68     G5 3 0
6 BD+36 343 * 01 54 27.3455722248 +37 13 30.311450040   10.70 10.17     F5V 6 0
7 BD+37 404 * 01 54 39.6532588896 +38 11 45.498536808   9.92 8.91 8.50   G8III 33 0
8 BD+36 345 * 01 54 56.4089812296 +37 26 36.119346684   10.28 9.27     K0III 9 0
9 HD 11624 * 01 54 57.6611872960 +37 07 41.866841554   7.456 6.267     K0 24 0
10 BD+37 407 * 01 55 12.6246242616 +37 50 14.552504052   10.31 9.39     G5III 61 0
11 BD+37 412 * 01 55 39.3712391280 +37 52 52.511127168   9.88 8.90     K0III 39 0
12 BD+36 350 * 01 55 42.3909340992 +37 37 54.568589412   10.13 9.17     K0V 39 0
13 BD+38 379 * 01 55 51.2208234384 +38 49 28.750807236   9.93 9.26     G0 5 0
14 HD 11727 * 01 55 54.4807023840 +37 16 40.045649772   7.502 5.867     M0III 35 0
15 HD 11720 * 01 55 54.7593674280 +37 52 00.199001928   9.05 8.09     K0III 19 0
16 BD+37 418 SB* 01 56 18.8975265744 +37 58 00.460205436   9.98 8.97     G9III 33 0
17 HD 11811 MS* 01 56 50.4332970624 +38 01 58.141549236   9.75 8.91     G2V 40 0
18 NGC 752 OpC 01 56 53.5 +37 47 38           ~ 642 0
19 BD+36 362 * 01 56 58.4007328800 +37 05 44.041538364   9.82 8.32     K3V 9 0
20 BD+37 424 * 01 57 03.1090465536 +38 08 02.646530952   9.89 8.89     G8III 42 0
21 BD+36 368 SB* 01 57 37.5961724736 +37 39 37.908040644   9.90 8.85     K1III 41 1
22 BD+37 432 * 01 57 38.9498019528 +37 46 12.414071532   9.98 9.00     G9III 63 0
23 BD+37 436 * 01 57 46.7076458856 +38 15 14.195550888   10.09 9.00     K0III 9 0
24 HD 11908 * 01 57 48.8861938104 +38 26 45.091685904   9.24 8.28     K0V 9 0
25 BD+37 447 * 01 58 50.6393787504 +38 36 20.000014596   9.93 9.40     F4III 8 0
26 BD+37 448 * 01 58 52.9027843464 +37 48 57.229263828   10.07 9.04     G9III 84 0
27 HD 12028 * 01 58 58.4706227856 +37 08 14.780914224   9.18 8.73     F5V 10 0
28 BD+37 450 * 01 59 14.7985448520 +38 00 55.287796140   9.98 8.97     G8III 30 0
29 BD+36 386 * 02 00 24.5744005176 +36 53 52.248372972   9.88 9.49     F0III 4 0
30 HD 12231 * 02 00 56.3861323248 +38 41 02.794013988   9.62 8.23     K0 11 0
31 NGC 2354 OpC 07 14 00.7 -25 43 26   7.28 6.5     ~ 96 0
32 NGC 3680 OpC 11 25 34.1 -43 14 24   8.40 7.6     ~ 319 0
33 IC 4651 OpC 17 24 50.9 -49 55 01           ~ 350 0

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