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J/A+A/521/A40    Stroemgren photometry of Milky Way stars    (Arnadottir+, 2010)

The ability of intermediate-band Stroemgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities Arnadottir A.S., Feltzing S., Lundstroem I. <Astron. Astrophys. 521, A40 (2010)> =2010A&A...521A..40A
ADC_Keywords: Stars, nearby ; Photometry, uvby ; Abundances, [Fe/H] Keywords: stars: abundances - stars: fundamental parameters - solar neighborhood - Galaxy: stellar content Abstract: Several large scale photometric and spectroscopic surveys are being undertaken to provide a more detailed picture of the Milky Way. Given the necessity of generalisation in the determination of, e.g., stellar parameters when tens and hundred of thousands of stars are considered it remains important to provide independent, detailed studies to verify the methods used in the surveys. Description: We evaluate available metallicity calibrations based on Stroemgren uvby photometry for dwarf stars using a catalogue of stars with both uvby photometry and spectroscopically determined iron abundances ([Fe/H]). The catalogue was created for this project. Using this catalogue, we also evaluate available calibrations that determine logg. A larger catalogue, in which metallicity is determined directly from uvby photometry, is used to trace metallicity-dependent standard sequences for dwarf stars. We also perform comparisons, for both dwarf and giant stars, of metallicities derived from ugriz photometry with metallicities derived from Stroemgren photometry. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 114 459 Dwarf stars with both Stroemgren photometry and [Fe/H] based on high resolution, high S/N spectroscopy refs.dat 66 19 References
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP ? HIP number 8- 18 A11 --- Name Other name 20- 23 A4 --- r_b-y Reference for uvby data, in refs.dat file 25- 30 F6.3 mag Vmag V magnitude 32- 36 F5.3 mag b-y Stroemgren b-y colour index 38- 42 F5.3 mag m1 Stroemgren m1 index 44- 49 F6.3 mag c1 Stroemgren c1 index 51 A1 --- l_E(B-V) Limit flag on E(B-V) 52- 56 F5.3 mag E(B-V) Color excess 58- 63 F6.3 mag V0mag Dereddened V magnitude 65- 69 F5.3 mag (b-y)0 Dereddened b-y colour index 71- 75 F5.3 mag m1.0 Dereddened m1 index 77- 82 F6.3 mag c1.0 Dereddened c1 index 84- 88 F5.2 [Sun] [Fe/H] Average metallicity 90- 93 F4.2 [Sun] range ?=- Full range (±) of [Fe/H] if the star was found in more than one study 95 I1 --- Nref Number of references for [Fe/H] 97-114 A18 --- r_[Fe/H] References for [Fe/H], in refs.dat file
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Ref Reference code 6- 24 A19 --- BibCode BibCode 26- 46 A21 --- Aut Author's name 48- 66 A19 --- Com Comments
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 19-Oct-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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