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J/A+A/386/187       Radial velocities in IC 4651             (Meibom+, 2002)

Critical tests of stellar evolution in open clusters. III: stellar population and dynamical evolution of IC 4651. Meibom S., Andersen J., Nordstroem B. <Astron. Astrophys. 386, 187 (2002)> =2002A&A...386..187M
ADC_Keywords: Clusters, open ; Radial velocities ; Binaries, orbits ; Rotational velocities Keywords: open clusters and associations: IC 4651 - stars: HR diagram - stars: evolution - stars: kinematics - stars: fundamental parameters Description: The radial-velocity observations were made during the years 1989-1997 with the photoelectric scanner CORAVEL (Mayor, 1985IAUCo..88...35M) on the Danish 1.54-m telescope at ESO, La Silla. The individual mean errors given are computed from the measured S/N ratio and the shape of the cross-correlation profile (see Sect. 2.2 of this paper). Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 17 24.7 -49 57 IC 4651 ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 99 104 Mean radial, rotational velocities for 104 stars table2.dat 161 5 Revised orbital elements for red giant binaries tablea1.dat 45 517 IC 4651: individual radial velocity observations
See also: J/A+A/361/929 : IC 4651 uvby photometry (Meibom, 2000) J/A+AS/118/407 : CCD phot. + velocities of NGC 3680 stars (Nordstroem+ 1996) J/A+A/322/460 : NGC 3680 photometry and radial velocities (Nordstroem+ 1997) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 5 I5 ---- MEI Meibom identification number (G1) 8- 12 A5 ---- Name Other name (1) 15- 19 F5.2 mag Vmag Johnson V magnitude 22- 26 F5.3 mag (b-y) ? (b-y) colour 29- 34 F6.2 km/s <RV> Mean radial velocity 37- 41 F5.2 km/s e_<RV> Error on mean radial velocity 44- 45 I2 ---- o_<RV> Number of observations 48- 52 F5.2 km/s e_<RV>1 Standard deviation of a single observation 55- 59 F5.2 --- O/C e_<RV>1/e_<RV>C ratio (2) 62- 65 I4 d deltaT Time span covered by observations 68- 72 F5.3 --- Pr(chi2) ? Probability that the velocity is constant, i.e. that the star is single 75- 79 F5.3 --- Pr(RV) Cluster membership probability 81 A1 --- l_vsin(i) Limit flag on vsin(i) 82- 85 F4.1 km/s vsin(i) Mean rotational velocity 86 A1 --- u_vsin(i) Uncertainty flag on vsin(i) 88- 91 F4.1 km/s e_vsin(i) ? Error on rotational velocity 94- 99 A6 --- Remarks Comments (3)
Note (1): Other names: E: Eggen, 1971ApJ...166...87E, Cl* IC 4651 Egg NN A: Anthony-Twarog et al. (1988AJ.....95.1453A) L: Lindoff, 1972A&A....16..315L, IC 4651 NNN M: Mermilliod et al. (1995, Cat. J/A+A/299/53), IC 4651 NNNN Note (2): e<RV>1/e<RV>C, where 'e_<RV>C' is the average value of the error estimated for each observation of a star based on the number of counts and the shape of the profile. Note (3): Comments: M: Mermilliod et al. (1995, Cat. J/A+A/299/53) O: new orbit in table2.dat sb2/3: double/triple-lined spectroscopic binary pm: probable member *: remark in Sect. 2.3 of the paper
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 5 I5 --- MEI Meibom identification number (G1) 7- 9 I3 ---- Lin Lindoff (1972A&A....16..315L) number, IC 4651 NNN in Simbad 11- 18 F8.3 d Per Orbital period 20- 25 F6.3 d e_Per rms uncertainty on Per 27- 36 F10.2 d Time HJD time of periastron passage 38- 42 F5.2 d e_Time rms uncertainty on Time 44- 48 F5.3 --- Ecc Eccentricity of the orbit 50- 54 F5.3 --- e_Ecc rms uncertainty on Ecc 56- 60 F5.1 deg Omega Longitude of periastron 62- 65 F4.1 deg e_Omega ? rms uncertainty on Omega 67- 72 F6.2 km/s Gamma Barycenter velocity 74- 77 F4.2 km/s e_Gamma rms uncertainty on Gamma 79- 83 F5.2 km/s K1 Velocity semi-amplitude of primary 85- 88 F4.2 km/s e_K1 rms uncertainty on K1 90- 93 F4.1 km/s K2 ? Velocity semi-amplitude of secondary 95- 97 F3.1 km/s e_K2 ? rms uncertainty on K2 99-104 F6.2 Gm a1*sini Semi-major axis of primary, in 106km 106-110 F5.2 Gm e_a1*sini rms uncertainty on a1*sini 112-114 I3 Gm a2*sini ? Semi-major axis of secondary, in 106km 116-117 I2 Gm e_a2*sini ? rms uncertainty on a2*sini 119-124 F6.4 solMass f(m) ? Mass function (1) 126-131 F6.4 solMass e_f(m) ? rms uncertainty on f(m) 133-136 F4.2 solMass m1*sin(i)+3 ? Mass of the primary, m1*[sin(i)]3 138-141 F4.2 solMass e_m1*sin(i)+3 ? rms uncertainty on m1*sin(i)+3 143-146 F4.2 solMass m2*sin(i)+3 ? Mass of the secondary, m2*[sin(i)]3 148-151 F4.2 solMass e_m2*sin(i)+3 ? rms uncertainty on m2*sin(i)+3 153-156 F4.2 km/s Sigma rms uncertainty on velocities 158-161 I4 --- Nobs Number of observations
Note (1): f(m)=[m2*sin(i)]3/(m1+m2)2
Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 5 I5 ---- MEI ID (Meibom 2000) (G1) 7- 17 F11.3 d HJD Heliocentric Julian Date 20- 25 F6.2 km/s RV1 Radial velocity of primary star 28- 31 F4.2 km/s e_RV1 Computed mean error of RV1 34- 39 F6.2 km/s RV2 ? Radial velocity of secondary star (in double-lined binaries only) 42- 45 F4.2 km/s e_RV2 ? Computed mean error of RV2 (in double-lined binaries only)
Global notes: Note (G1): Meibom, 2000, Cat. J/A+A/361/929, Cl* IC 4651 MEI NNNNN in Simbad
History: Some corrections in table1.dat on 17-May-2002 * 23-Jul-2002: Table 1: MEI 11709 transformed to MEI 11799 Acknowledgements: Soren Meibom References: Nordstroem et al., Paper I 1996A&AS..118..407N, Cat. J/A+AS/118/407 Nordstroem et al., Paper II 1997A&A...322..460N, Cat. J/A+A/322/460
(End) Soeren Meibom [Wisconsin University], Patricia Bauer [CDS] 02-Feb-2002
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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