J/A+A/319/481 Radial velocities of 10 spectroscopic binaries (Mermilliod+ 1997)
Red giants in open clusters. VI. Orbits of ten spectroscopic binaries.
Mermilliod J.-C., Andersen J., Mayor M.
<Astron. Astrophys. 319, 481 (1997)>
=1997A&A...319..481M 1997A&A...319..481M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Binaries, spectroscopic ; Radial velocities
Keywords: cluster: open - binaries: spectroscopic -
stars: fundamental parameters
Abstract:
We present new orbits for ten (single-lined) spectroscopic binaries in
seven open clusters: NGC 2489, 2567, 3033, 5822, 6134, 6664 and IC
2488 based on 243 individual radial velocities obtained with the
southern CORAVEL scanner. The orbital periods range from 98.5 to 3566
days. The shortest-period orbit is circular, as expected. Seven of the
binaries are confirmed cluster members, one is a possible member, and
two are clearly non-members. Maximum masses from photometric
separation and minimum masses from the spectroscopic orbits define the
mass of the secondaries within an interval of
Mmax-Mmin=0.5M☉. NGC 6664 #54 seems to have a rather massive
secondary (M>3M☉), but the UBV colours appear normal for a
luminous red giant, while significantly bluer (B-V) and (U-B) colours
would be expected. It could be a triple system, the secondary being
itself a short period binary. This paper brings the number of orbits
published in this programme to 53, 45 of which are confirmed red-giant
cluster members and 8 are non-members
Objects:
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RA (2000) DE Designation(s)
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07 56.2 -30 04 NGC 2489 = C 0754-299 (#25)
08 18.4 -30 39 NGC 2567 = C 0816-304 (#104)
09 48.8 -56 25 NGC 3033 = C 0947-561 (#12, #19)
15 05.2 -54 21 NGC 5822 = C 1501-541 (#3, #312)
16 27.7 -49 09 NGC 6134 = C 1624-490 (#8, #34)
18 36.7 -08 13 NGC 6664 = C 1834-082 (#54)
09 27.6 -56 59 IC 2488 = C 0926-567 (#128)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 44 244 Radial velocity data
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See also:
J/A+A/299/53 : Part IV. NGC 3680 and IC 4651 (Mermilliod+ 1995)
J/A+A/307/80 : Part V. NGC 2099 (Mermilliod+ 1996)
J/A+A/324/91 : Part VII. Mel 71 red giants radial vel. (Mermilliod+ 1997)
J/A+A/375/30 : Part IX. Radial velocities in open clusters (Mermilliod+ 2001)
J/A+A/423/189 : Part XI. NGC 2477 red giants UBV phot. & RV (Eigenbrod+, 2004)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 I9 --- LID Cluster - Star number (1)
14-24 F11.3 d HJD Heliocentric Julian Date
32-37 F6.2 km/s RV Radial velocity
40-44 F5.2 km/s e_RV Error on the radial velocity
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Note (1): The numbering systems used are from:
NGC 2489 Lindoff U., Johansson K. 1968, Ark. Astr 5, 45 (1968ArA.....5...45L 1968ArA.....5...45L)
NGC 2567 Lindoff U. 1968, Ark. Astr 4, 587 (1968ArA.....4..587)
NGC 3033 Vogt N., Moffat A.F.J. 1972, A&A 9, 97 (1973A&AS....9...97V 1973A&AS....9...97V)
NGC 5822 Bozkurt S. 1974, Rev. Mex. A.A. 1, 89 (1974RMxAA...1...89B 1974RMxAA...1...89B)
NGC 6134 Lindoff U. 1972, A&AS 7, 231 (1972A&AS....7..231L 1972A&AS....7..231L)
NGC 6664 Arp H.C. 1958, ApJ 128, 166 (1958ApJ...128..166A 1958ApJ...128..166A)
IC 2488 Pedreros M. 1987, AJ 94, 92 (1987AJ.....94...92P 1987AJ.....94...92P)
LID: NGC clusters: 2nnnnssss nnnn = NGC number, ssss = star number
IC clusters: 3iiiissss iiii = IC number, ssss = star number
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Acknowledgements: Jean-Claude Mermilliod
References:
Mermilliod & Mayor, Paper I =1989A&A...219..125M 1989A&A...219..125M
Mermilliod et al., Paper II =1989A&AS...79...11M 1989A&AS...79...11M
Mermilliod & Mayor, Paper III = 1990A&A...237...61M 1990A&A...237...61M
Mermilliod et al., Paper IV =1995A&A...299...53M 1995A&A...299...53M
Mermilliod et al., Paper V =1996A&A...307...80M 1996A&A...307...80M
(End) Patricia Bauer [CDS] 12-Aug-1996