J/A+A/339/423 Velocities of red giants in NGC 752 (Mermilliod+ 1998)
Red giants in open clusters: VIII. NGC 752
Mermilliod J.-C., Mathieu R.D., Latham D.W., Mayor M.
<Astron. Astrophys. 339, 423 (1998)>
=1998A&A...339..423M 1998A&A...339..423M
ADC_Keywords: Clusters, open ; Stars, giant ; Radial velocities
Keywords: techniques: radial velocities - binary: spectroscopic -
Hertzsprung-Russel (HR) diagram -
open clusters and associations: individual: NGC 752
Abstract:
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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 72 30 List of stars
table4a.dat 30 409 CORAVEL radial velocity data
table4b.dat 30 84 CfA radial velocity data
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See also:
J/A+A/299/53 : Red giants in NGC 3680 and IC 4651 (Mermilliod+, 1995)
J/A+A/307/80 : Velocities of red giants in NGC 2099 (Mermilliod+ 1996)
J/A+A/319/481 : Radial velocities of 10 spectros. binaries (Mermilliod+ 1997)
J/A+A/324/91 : Melotte 71 red giants radial velocities (Mermilliod+ 1997)
J/A+A/375/30 : Radial velocities in open clusters (Mermilliod+, 2001)
J/A+A/423/189 : NGC 2477 red giants UBV phot. & RV (Eigenbrod+, 2004)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- StID Star number denomination, as in tables 4
7- 8 I2 h RAh Right Ascension J2000 (hours) (1)
10- 11 I2 min RAm Right Ascension J2000 (minutes) (1)
13- 16 F4.1 s RAs Right Ascension J2000 (seconds) (1)
18 A1 --- DE- Declination J2000 (sign) (1)
19- 20 I2 deg DEd Declination J2000 (degrees) (1)
22- 23 I2 arcmin DEm Declination J2000 (minutes) (1)
25- 26 I2 arcsec DEs ?Declination J2000 (seconds) (1)
31- 72 A42 --- OtherNames Other designations
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Note (1): data extracted from SIMBAD
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Byte-by-byte Description of file: table4a.dat table4b.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- StID Star number denomination (1)
7- 17 F11.3 d HJD Heliocentric Julian Date
19- 24 F6.2 km/s RV Radial velocity
26- 29 F4.2 km/s e_RV Error on the radial velocity
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Note (1): The numbering system used for NGC 752 is from:
H: Heinemann K. 1926AN....227..193H 1926AN....227..193H, NGC 752 NNN in Simbad
J: Junkvist S. 1931, Medd. Astron. Obs. Upsala no 52
N: concerning 3 stars:
N1367 = Platais 1263 (Cl* NGC 752 PLA 1263 in Simbad)
= Ebb. A3 (Cl* NGC 752 EBBI A3 in Simbad)
N1175 = Platais 212 (Cl* NGC 752 PLA 212 in Simbad)
N2054 = Platais 172 (Cl* NGC 752 PLA 172 in Simbad)
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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, Cat. J/A+A/299/53
Mermilliod et al., Paper V. 1996A&A...307...80M 1996A&A...307...80M, Cat. J/A+A/307/80
Mermilliod et al., Paper VI. 1997A&A...319..481M 1997A&A...319..481M, Cat. J/A+A/319/481
Mermilliod et al., Paper VII. 1997A&A...324...91M 1997A&A...324...91M, Cat. J/A+A/324/91
Mermilliod et al., Paper IX. 2001A&A...375...30M 2001A&A...375...30M, Cat. J/A+A/375/30
(End) Patricia Bauer [CDS] 22-Sep-1998