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V/58        [Fe/H], Vel, Orbits of F2-K5 Dwarfs 80pc from Sun   (Marsakov+ 1988)

The Catalogue of Metallicities, Velocity Components and Orbital Parameters for F2-K5 Dwarfs in the Vicinity of 80 pc from the Sun Marsakov V.A., Shevelev Yu.G. <CDS Inf. Bull., 35, 129 (1988)> =1988BICDS..35..129M
ADC_Keywords: Abundances, [Fe/H] ; Space velocities ; Stars, late-type Description: In this catalog, metallicities, distances, components of space velocities and parameters of osculating orbits are calculated for 1065 F2-K5 dwarfs with UBV photometric data, proper motions and radial velocities. The present sample is composed on the base of the Ochsenbein (1980) catalogue and contains the stars of the V (IV-V) luminosity class, within the colour range 0.35<B-V<1.10 (which corresponds to the spectral class range F2-K5). Sandage's (1969) Hyades sequence was used to determine the value delta (U-B) for each star. The authors calibrated the ultraviolet excess in terms of [Fe/H] separately for the four of the temperature index (B-V) where delta(U-B) practically does not depend on the effective temperature. Intervals in (B-V) correspond to the following division on spectral class intervals: F2-F9, G0-G4, and G5-G9, K0-K5. Metallicity is calculated from the formulae: [Fe/H]=-5.3*delta(U-B)+0.02 for stars F2-F9 [Fe/H]=-5.1*delta(U-B)+0.13 for stars G0-G4 [Fe/H]=-5.4*delta(U-B)+0.02 for stars G5-G9 [Fe/H]=-4.7*delta(U-B)-0.04 for stars K0-K5 These relations follow from the assumption that mean metallicity and metallicity dispersion for stars of all spectral classes are the same. Distances to the stars were calculated from spectral parallaxes. Absolute magnitudes (M(V)) were obtained from the Sp,M(V)-relation for dwarfs (Straizys, 1982). The sample includes only stars nearer than 80 pc because reddening is negligible for them. The obtained distances together with radial velocities and proper motions are used to calculate the components of space velocities. The eccentricities, apogalactic and perigalactic distances of the stars were calculated from the osculating orbit approximation according to the galaxy model from the paper by Eggen et al. (1962). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file desc.doc 80 78 Author's documentation catalog.dat 115 1065 Catalog file
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HD ?HD number 7 A1 --- m_HD [/] for merge of consecutive HD numbers 8- 13 F6.2 deg GLON Galactic longitude 15- 20 F6.2 deg GLAT Galactic latitude 21- 25 F5.2 mag Vmag Brightness in V filter 28- 33 F6.3 mag B-V B-V color index 35- 40 F6.3 mag U-B U-B color index 41- 54 A14 --- Sp Spectral type 56- 60 F5.1 pc R Heliocentric distance 62- 67 F6.1 km/s Uvel Velocity vector component in the direction of the anticenter of the Galaxy 69- 74 F6.1 km/s Vvel Velocity component in the direction of Galactic rotation 76- 81 F6.1 km/s Wvel Velocity component towards the north Galactic pole 84- 88 F5.1 kpc R1 Apogalactic distance of the Galactic orbit 91- 95 F5.1 kpc R2 Perigalactic distance of the Galactic orbit 98-102 F5.3 --- e Eccentricity of the Galactic orbit 104-109 F6.3 mag E(U-B) Ultraviolet excess 111-115 F5.2 [Sun] [Fe/H] Metallicity index ([Fe/H]=lg(Fe/H)(star)-lg(Fe/H)(sun))
References: Eggen O.J., Lynden-Bell D., Sandage A.: 1962, ApJ, 136, 748 Ochsenbein F.: 1980, CDS Inf. Bull., 19, 74 (Cat. V/15) Sandage A.: 1969, ApJ, 158, 1115. Straizys V.: 1982, "Metal-Deficient Stars", Vilnius: Mokslas,p.206
(End) James E. Gass [SSDOO/ADC] 09-Sep-1997
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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