J/AJ/114/1087 Omega Cen radial velocities (Mayor+ 1997)
Radial velocities of southern stars obtained with the photoelectric
scanner CORAVEL. VIII. Observations of 471 giant stars in omega Centauri.
Mayor M., Meylan G., Udry S., Duquennoy A., Andersen J., Nordstrom B.
<Astron. J. 114, 1087 (1997)>
=1997AJ....114.1087M 1997AJ....114.1087M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Radial velocities
Abstract:
This paper presents a catalog of the mean radial velocities of 471
giant stars in the galactic globular cluster Omega Cen, the large
majority of which are confirmed as cluster members. The typical
uncertainty in the mean velocities is less than 1kms; a variability
indicator and notes on chemical peculiarities are provided. In
extension of earlier dynamical analyses of Omega Cen, based on part of
the data presented here (Meylan & Mayor 1986A&A...166..122M 1986A&A...166..122M;
Meylan 1987A&A...184..144M 1987A&A...184..144M; Meylan et al. 1995A&A...303..761M 1995A&A...303..761M), a
companion paper (Merritt et al. 1997AJ....114.1074M 1997AJ....114.1074M) rediscusses the
subject, based on the full data set and a new theoretical approach,
using nonparametric techniques.
Objects:
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RA (2000) DE Designation(s)
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13 26 45.8 -47 28 36 omega Cen = NGC 5139
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 71 481 Catalog of mean radial velocities for the
ω Centauri program stars
table1.tex 89 519 LaTeX version of table1.dat
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Identification number of the stars (1)
6- 10 F5.2 mag Vmag ? Visual magnitude
12- 15 F4.2 mag B-V ? B-V color index
17- 20 I4 arcsec Rsec ? Radial distance from the cluster center
22- 26 F5.3 rad PA ? Position angle, from North to East
28- 33 F6.2 km/s RV Mean radial velocity
35- 38 F4.2 km/s e_RV rms uncertainty of the mean radial velocity
40- 43 F4.2 km/s SigRV ? rms value of the radial velocity distribution
45- 46 I2 --- o_RV Number of individual observations for the
RV determination
48- 52 F5.3 --- P(chi2) ? Probability that the observed SigRV is due to
observational error only
54- 57 I4 d Deltat ? Span in days between the first and last
measurements
59- 71 A13 --- Rem Remarks (2)
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Note (1): 1-6999 for the original numbers from Tables I and II by
Woolley (1966ROAn....2....1W 1966ROAn....2....1W) (use in SIMBAD: NGC 5139 NNNN)
7xxx indicate stars with the three last digits as in Table III by
Woolley (1966ROAn....2....1W 1966ROAn....2....1W) (use in SIMBAD: Cl* NGC 5139 Mar xxx)
8xxx represent new stars following our own numbering
(use in SIMBAD: Cl* NGC 5139 MMU xxx)
9xxx are new stars numbered by Freeman (private communication).
(use in SIMBAD: NGC 5139 xxx)
8xxx and 9xxx are located in the figure
Note (2): References:
1: Harding, 1962Obs....82..205H 1962Obs....82..205H
2: Stock & Wroblewski, 1972PDAUC...2...59S 1972PDAUC...2...59S
3: Cohen & Bell, 1986ApJ...305..698C 1986ApJ...305..698C
4: Cowley & Crampton, 1985PASP...97..835C 1985PASP...97..835C
5: Bond, 1975ApJ...202L..47B 1975ApJ...202L..47B
6: Lloyd Evans, 1983MNRAS.204..975L 1983MNRAS.204..975L
7: Lloyd Evans, 1986SAAOC..10...11L 1986SAAOC..10...11L
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Acknowledgements: Stephane Udry
References:
Mayor et al., Paper I. 1983A&AS...54..495M 1983A&AS...54..495M
Maurice et al., Paper II. 1984A&AS...57..275M 1984A&AS...57..275M
Andersen et al., Paper III. 1985A&AS...59...15A 1985A&AS...59...15A
Imbert et al., Paper IV. 1985A&AS...61..259I 1985A&AS...61..259I
Prevot et al., Paper V. 1985A&AS...62...23P 1985A&AS...62...23P
Maurice et al., Paper VI. 1987A&AS...67..423M 1987A&AS...67..423M
Imbert et al., Paper VII. 1989A&AS...81..339I 1989A&AS...81..339I
(End) Patricia Bauer [CDS] 14-Nov-1997