J/A+A/346/586 Rotating models of A and F stars (Perez Hernandez+, 1999)
Photometric parameters for rotating models of A- and F-type stars
Perez Hernandez F., Claret A., Hernandez M.M., Michel E.
<Astron. Astrophys. 346, 586 (1999)>
=1999A&A...346..586P 1999A&A...346..586P (SIMBAD/NED BibCode)
ADC_Keywords: Models, atmosphere ; Stars, A-type ; Stars, F-type ;
Photometry, uvby ; Photometry, Geneva ; Photometry, UBV
Keywords: stars: rotation - stars: fundamental parameters - stars: delta Sct -
open clusters: individual: Praesepe
Description:
Magnitude differences between rotating and non-rotating copartners for
a grid of models with solar metallicity are tabulated here. The
results are expressed in terms of the dimensionless angular velocity
w-bar- defined in Eq.(1) of the paper, the angle of inclination i and
the atmospheric parameters Te and ge defined in Eqs.(22) and (21),
respectively. To obtain the absolute magnitudes for a given rotating
model, the magnitudes of a non-rotating model with Teff=Te, g=ge
and the same intrinsic luminosity must be added. Results are given for
the filters in the Geneva, Johnson and Stroemgren systems.
Eq (1): w-bar = Ω/Ωc, where Ω is the angular velocity
of the star, and Ωc2=8GM/(27R3p), where
M is the mass and Rp the polar radius.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 74 16470 Geneva photometry
table2.dat 74 16470 Johnson and Stroemgren photometry
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 F4.2 [K] logTe Electron temperature atmospheric parameter (1)
6- 9 F4.2 [cm/s2] logge Electron surface gravity atmospheric parameter
11- 14 F4.2 --- w-bar Dimensionless angular velocity
16- 18 F3.0 deg i Angle of inclination
20- 26 F7.4 mag DBmag Magnitude difference in filter B
28- 34 F7.4 mag DUmag Magnitude difference in filter U
36- 42 F7.4 mag DVmag Magnitude difference in filter V
44- 50 F7.4 mag DB1mag Magnitude difference in filter B1
52- 58 F7.4 mag DB2mag Magnitude difference in filter B2
60- 66 F7.4 mag DV1mag Magnitude difference in filter V1
68- 74 F7.4 mag DGmag Magnitude difference in filter G
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Note (1): Te ∝ L/(4πσR2p) = Eq (22).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 F4.2 [K] logTe Electron temperature atmospheric parameter (1)
6- 9 F4.2 [cm/s2] logge Electron surface gravity atmospheric parameter
11- 14 F4.2 --- w-bar Dimensionless angular velocity
16- 18 F3.0 deg i Angle of inclination
20- 26 F7.4 mag DUmag Magnitude difference in filter U
28- 34 F7.4 mag DBmag Magnitude difference in filter B
36- 42 F7.4 mag DVmag Magnitude difference in filter V
44- 50 F7.4 mag Dumag Magnitude difference in filter u
52- 58 F7.4 mag Dvmag Magnitude difference in filter v
60- 66 F7.4 mag Dbmag Magnitude difference in filter b
68- 74 F7.4 mag Dymag Magnitude difference in filter y
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Note (1): Te∝L/(4πσR2p) = Eq (22).
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Acknowledgements: Fernando Perez
(End) Patricia Bauer [CDS] 22-Apr-1999