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J/A+A/525/A90       Thick disc vertical properties           (Katz+, 2011)

Probing the Galactic thick disc vertical properties and interfaces. Katz D., Soubiran C., Cayrel R., Barbuy B., Friel E., Bienayme O., Perrin M.-N. <Astron. Astrophys. 525, A90 (2011)> =2011A&A...525A..90K
ADC_Keywords: Stars, nearby ; Photometry, infrared ; Space velocities ; Proper motions ; Abundances ; Photometry, UBV Keywords: Galaxy: disk - stars: abundances - Galaxy: abundances Abstract: This work investigates the properties (metallicity and kinematics) and interfaces of the Galactic thick disc as a function of height above the Galactic plane. The main aim is to study the thick disc in a place where it is the main component of the sample. We take advantage of former astrometric work in two fields of several square degrees in which accurate proper motions were measured down to V-magnitudes of 18.5 in two directions, one near the north galactic pole and the other at a galactic latitude of 46° and galactic longitude near 0°. Spectroscopic observations have been acquired in these two fields for a total of about 400 stars down to magnitude 18.0, at spectral resolutions of 3.5 to 6.25Å. The spectra have been analysed with the code ETOILE, comparing the target stellar spectra with a grid of 1400 reference stellar spectra. This comparison allowed us to derive the parameters effective temperature, gravity, [Fe/H] and absolute magnitude for each target star. Description: Tables A1, A2 and A3: coordinates and parameters of the 346 CARELEC and CFHT program stars analysed in this study. Table B1: parameters of the 1398 ELODIE reference spectra used to derive the stellar characteristics of the program stars. Tables B2 and B3: parameters of the 45 CARELEC validation stars and 46 CFHT validation stars used to assess the accuracy and precision of the stellar atmospheric parameters derivation method. It should be noted that 2 stars "of" M71 (KC-124, KC-223) and 3 stars "of" M5 (I-52, III-44 and IV-61) discussed in the article but considered as not belonging to these clusters are not listed in table B3. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 101 346 Program stars coordinates and magnitudes tablea2.dat 45 346 Program stars stellar parameters tablea3.dat 80 346 Program stars metallicities, positions, velocities tableb1.dat 35 1398 Elodie library reference stars tableb2.dat 35 45 CARELEC validation stars tableb3.dat 39 46 CFHT validation stars
See also: B/pastel : The PASTEL catalogue (Soubiran+, 2010) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Designation (FMN-NNNNNN; <[KSC2011] FMN-NNNNNN> in Simbad) 12- 18 A7 --- Spectro Spectrograph: CARELEC, CFHT or BOTH 20- 26 A7 --- ExpID Id of the exposure (could be several exposures) 28- 29 I2 h RAh Right ascension (J2000) 31- 32 I2 min RAm Right ascension (J2000) 34- 38 F5.2 s RAs Right ascension (J2000) 40 A1 --- DE- Declination sign (J2000) 41- 42 I2 deg DEd Declination (J2000) 44- 45 I2 arcmin DEm Declination (J2000) 47- 50 F4.1 arcsec DEs Declination (J2000) 52- 56 F5.2 mag Vmag Photographic V apparent magnitude 58- 61 F4.2 mag B-V ? B-V photographic colour index 63- 66 F4.2 mag V-I ? V-I colour index 68- 73 F6.3 mag Jmag 2MASS J apparent magnitude 75- 80 F6.3 mag Hmag 2MASS H apparent magnitude 82- 87 F6.3 mag Ksmag ? 2MASS Ks apparent magnitude 89- 94 F6.1 mas/yr pmRA Proper motion along right ascension 96-101 F6.1 mas/yr pmDE Proper motion along declination
Byte-by-byte Description of file: tablea2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Designation 12- 15 I4 K Teff Effective temperature 17- 20 F4.2 [cm/s2] logg Logarithm of the surface gravity 22- 26 F5.2 [Sun] [Fe/H] Metallicity 28- 32 F5.2 mag VMAG Absolute visual magnitude 34- 40 F7.2 km/s RV ? Radial velocity 42- 45 I4 K Teff1 ? Effective temperature from SDSS photometry
Byte-by-byte Description of file: tablea3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Designation 12- 16 F5.2 [Sun] [Fe/H] Metallicity 18- 24 F7.1 pc d Distance (from the Sun) 26- 32 F7.1 pc X Galactic position X 34- 40 F7.1 pc Y Galactic position Y 42- 48 F7.1 pc Z Galactic position Z 50- 56 F7.1 km/s Uvel ? Galactic velocity U (1) 58- 64 F7.1 km/s Vvel ? Galactic velocity V 66- 72 F7.1 km/s Wvel ? Galactic velocity W 74- 80 F7.1 km/s U-W ? U(cos47) - W(sin47)
Note (1): U positive toward the Galactic center
Byte-by-byte Description of file: tableb1.dat tableb2.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Designation 12- 16 I5 K Teff Effective temperature (1) 18- 22 F5.2 [cm/s2] logg Logarithm of the surface gravity (1) 24- 28 F5.2 [Sun] [Fe/H] ? Metallicity (1) 30- 35 F6.3 mag VMAG ? Absolute visual magnitude (1)
Note (1): The stellar parameters have been derived from the PASTEL catalogue: Soubiran et al., 2010, Cat. B/pastel .
Byte-by-byte Description of file: tableb3.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Designation 12 I1 --- Nspe Number of spectra recorded 14- 17 I4 K Teff Effective temperature (1) 19- 22 F4.2 [cm/s2] logg Logarithm of the surface gravity (1) 24- 28 F5.2 [Sun] [Fe/H] Metallicity (1) 30- 34 F5.2 mag Vmag Apparent visual magnitude (1) 36- 39 F4.2 mag B-V ? B-V colour index (1)
Note (1): Stellar parameters for CFHT observations of validation stars of the globular clusters: * M5: identification names, V and B-V are from Buonanno et al. (1981MNRAS.196..435B); stellar parameters Teff, logg, are interpolated within values determined by Ramirez & Cohen (2003AJ....125..224R) for stars from the tip of the RGB down to the TO. * M71: identification names, V and B-V are from Arp & Hartwick (1971ApJ...167..499A). Stellar parameters are interpolated within values determined by Cohen et al. (2001AJ....122.1420C) for stars from the tip of the RGB down to the TO, for which a metallicity [Fe/H]=-0.7 was found. Stars indicated by KC, S are on the numbering system of Cudworth (1985AJ.....90...65C). * M67: identifications are from Johnson & Sandage (1955ApJ...121..616J) and V and B-V are from Montgomery et al. (1993, Cat. J/AJ/106/181); stellar parameters are interpolated in calculations by VandenBerg & Clem (2003AJ....126..778V), where Teff values are from calibrations by Alonso et al. (1999A&AS..140..261A) and Sekiguchi & Fukugita (2000AJ....120.1072S) for a metallicity [Fe/H]=0.0 (An et al., 2009ApJ...700..523A). * M92: Identification names, V and B-V are from Sandage & Walker (1966ApJ...143..313S) and Buonanno et al. (1983A&AS...53....1B), and F means Fagerholm. Stellar parameters are interpolated within values by Sneden et al. (2000AJ....120.1351S).
Acknowledgements: David Katz, david.katz(at)obspm.fr
(End) D. Katz [Observatoire de Paris], Patricia Vannier [CDS] 29-Dec-2010
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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