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J/A+A/320/74        Radial velocities of Pleiades members (Mermilliod+ 1997)

Investigation of the Pleiades cluster. III. Additional corona members Mermilliod J.-C., Bratschi P., Mayor P. <Astron. Astrophys. 320, 74 (1997)> =1997A&A...320...74M (SIMBAD/NED BibCode)
ADC_Keywords: Radial velocities Keywords: open clusters - individual: Pleiades - radial velocity Description: The analysis of CORAVEL radial velocities of 93 stars selected on the basis of their proper motion and Geneva CCD photometric observations for 57 stars have permitted to identify 25 new members in the outer part of the Pleiades. Several spectroscopic binaries have been discovered, but their membership is not clear. Two orbits with short periods have been determined, but both stars are probably non-members. The total number of member stars in the outer part of the Pleiades in the spectral range F5-K0 (0.45<B-V<0.90) is now 81 which is comparable to the number of stars known in Hertzsprung's central area (88 stars) in the same spectral domain. Therefore at least 48% of the F5-K0 main-sequence stars are located in the outer part of the cluster. And the census is probably still incomplete. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2 134 84 Observational data for non-member stars
See also: J/A+A/329/101 : Masses of Pleiades members (Raboud+ 1998) Byte-by-byte Description of file: table2
Bytes Format Units Label Explanations
1- 8 A8 --- AK Star number from Artjukhina and Kalinina (1970) 12- 13 I2 h RAh Right ascension (J2000) 15- 16 I2 min RAm Right ascension (J2000) 18- 21 F4.1 s RAs Right ascension (J2000) 24 A1 --- DE- Declination sign 25- 26 I2 deg DEd Declination (J2000) 28- 29 I2 arcmin DEm Declination (J2000) 31- 32 I2 arcsec DEs Declination (J2000) 36- 40 F5.2 mag Vmag ? V magnitude (see text) 44- 48 F5.2 mag [B-V] ? Geneva CCD [B-V] colour index 51- 55 F5.2 mag B-V ? Johnson B-V colour index 59- 63 F5.1 km/s RV ? Mean radial velocity 66- 69 F4.1 km/s e_RV ? Error on the radial velocity 72- 73 I2 --- N ? Number of RV observations 76- 79 I4 d DeltaT ? Time interval 83- 87 F5.3 --- P(chi2) ? Probability of non variability 90- 93 F4.1 km/s RVc Computed radial velocity 97-101 F5.1 km/s O-C ? Observed minus Computed 104-107 F4.2 --- Prob ? Proper-motion membership probability 110-134 A25 --- Remark Remarks
Acknowledgements: Jean-Claude Mermilliod References: Artjukhina N.M., Kalinina E. 1970, Tr. Shternberg Astr. Inst. 39, 111 Rosvick et al., Paper I. 1992A&A...255..130R Mermilliod et al., Paper II. 1992A&A...265..513M
(End) Patricia Bauer [CDS] 03-Sep-1996
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