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J/BaltA/8/325   Radial velocities of Pop. II stars    (Bartkevicius+ 1999)

Radial velocities of Population II Stars Bartkevicius A., Sperauskas J. <Baltic Astronomy, 8, 325 (1999)> =1999BaltA...8..325B
ADC_Keywords: Stars, population II ; Radial velocities Description: The Population II radial velocity measurement programme was carried out in 1988-1993. Metal-deficient stars, components of Population II visual binaries or common proper motion stars, suspected radial velocity variables, Hipparcos programme stars are included into the observation programme. The measurements were made with the CORAVEL-type photoelectric radial velocity speedometer attached to the 1m reflector at the Mount Maidanak observatory (h=2560m, Uzbekistan). The average error of a single measurement is about 0.6km/s, but for the stars as faint as 13mag, or for extreme metal-deficient stars it drop down to 2.5km/s. 621 measurements for 164 stars are presented. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 100 164 Weighted mean of radial velocities and other data table2.dat 43 621 Individual radial velocities notes.dat 80 95 Notes to table1
See also: V/72 : Preliminary cat. of field Pop. II Stars (POP2) (Bartkevicius+, 1993) J/AJ/108/222 : Pop. II variable stars (Nemec+, 1994) J/BaltA/5/1 : Classification of Population II stars (Bartkevicius+, 1996) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
2- 4 I3 --- Seq Sequential number of star 5- 8 A4 --- Cat Catalog name (1) 9- 18 A10 --- CatNo Catalog number 19 A1 --- Mult Visual binary component code 22- 23 I2 h RAh Right ascension (J2000) 25- 26 I2 min RAm Right ascension (J2000) 28- 29 I2 s RAs Right ascension (J2000) 32 A1 --- DE- Declination sign 33- 34 I2 deg DEd Declination (J2000) 36- 37 I2 arcmin DEm Declination (J2000) 39- 40 I2 arcsec DEs Declination (J2000) 43- 47 F5.2 mag Vmag ? Johnson's V magnitude 50- 68 A19 --- SpType Spectral type and luminosity class 70- 75 F6.1 km/s <RV> Mean radial velocity 79- 81 F3.1 km/s e_<RV> Mean error of mean radial velocity 85- 87 F3.1 km/s E ? Standard deviation (external error) of the individual radial velocity observations 91- 93 F3.1 --- E/I ? External and internal error ratio 96- 97 I2 --- Nobs Number of observations 100 A1 --- Notes [N] N indicates a note in notes.dat file
Note (1): Catalog names: G: Lowell Proper Motion Survey, North (I/79) and South (I/112) BD: Bonner Durchmusterung, Cat. I/122 HD: Henry Draper Catalogue, Cat. III/135 VA: Van altena, 1966AJ.....71..482V, Cl* Melotte 25 VA NNN in Simbad GSC: HST Guide Star Catalog, Cat. I/255 HDE: Henry Draper Catalogue Extension, Cat. III/135 LDS: LDS Catalogue, Cat. I/130 PPM: Positions and Proper Motions, North (I/146) and South (I/193)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
2- 4 I3 --- Seq Sequential number of star 6- 18 A13 --- Name Star name and visual binary component code 20- 30 F11.3 d JD Julian date 32- 37 F6.1 km/s RV Individual radial velocity 40- 42 F3.1 km/s e_RV Mean error on RV
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number of star 5- 18 A14 --- Name Star name and visual binary component code 20- 80 A61 --- Note Text of the note (1)
Note (1): Abbreviations used: RV : radial velocity, RV0: radial velocity of center of mass of spectroscopic binary (SB), D : angular separation of double star components in arcsec, dm : magnitude differences of double star components, Hp : Hipparcos magnitude Hp differences of double star components, or amplitude of variation Hp of variable stars (Var), [HIP] : data from Hipparcos Celestia catalog (Cat. I/239) CPM : Common Proper Motion pair
Acknowledgements: A. Bartkevicius , J. Sperauskas
(End) Francois Ochsenbein [CDS] 22-Feb-2000
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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