J/A+A/450/735 Effective temperatures and radii of stars (Masana+, 2006)
Effective temperature scale and bolometric corrections from 2MASS photometry.
Masana E., Jordi C., Ribas I.
<Astron. Astrophys. 450, 735 (2006)>
=2006A&A...450..735M 2006A&A...450..735M
ADC_Keywords: Photometry, infrared ; Effective temperatures ; Stars, diameters
Keywords: stars: fundamental parameters - stars: late-type - stars: sub-dwarfs -
infrared: stars - techniques: photometric - methods: analytical
Abstract:
This paper presents a method to determine effective temperatures,
angular semi-diameters and bolometric corrections for population
I and II FGK type stars based on V and 2MASS IR photometry. Accurate
calibration is accomplished by using a sample of solar analogues,
whose average temperature is assumed to be equal to the solar
effective temperature of 5777K.
Description:
Table 2: Effective temperatures, angular semi-diameters, radii and
bolometric corrections in both V and K bands, with their
uncertainties, for 10999 stars as resulting from the algorithm
presented in this paper.
Table 3: Bolometric correction as a function of effective temperature
for logg=4.5 and different metallicities (valid for dwarf and subdwarf
stars)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 80 10999 Effective temperatures, angular sd, radii and BC
table3.dat 75 41 Bolometric corrections as function of Teff
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
II/241 : 2MASS Catalog Intermediate Data Release (IPAC/UMass, 2000)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HIP Hipparcos (I/239) number
8- 12 I5 K Teff Effective temperature
14- 16 I3 K e_Teff Uncertainty in effective temperature
20- 24 F5.3 mas SD Angular semi-diameter
28- 32 F5.3 mas e_SD Uncertainty in angular semi-diameter
36- 40 F5.3 solRad Rad Radius
42- 48 F7.3 solRad e_Rad Uncertainty in radius
51- 56 F6.3 mag BCV Bolometric correction in V band
60- 64 F5.3 mag e_BCV Uncertainty in bolometric correction (V band)
68- 72 F5.3 mag BCK Bolometric correction in K band
76- 80 F5.3 mag e_BCK Uncertainty in bolometric correction (K band)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 I4 K Teff Effective temperature
6- 11 F6.3 mag BCVp05 Bolometric correction V band for [M/H]=+0.5
13- 18 F6.3 mag BCKp05 Bolometric correction K band for [M/H]=+0.5
20- 25 F6.3 mag BCVp00 Bolometric correction V band for [M/H]= 0.0
27- 32 F6.3 mag BCKp00 Bolometric correction K band for [M/H]= 0.0
34- 39 F6.3 mag BCVm10 ? Bolometric correction V band for [M/H]=-1.0
41- 46 F6.3 mag BCKm10 ? Bolometric correction K band for [M/H]=-1.0
48- 53 F6.3 mag BCVm20 ? Bolometric correction V band for [M/H]=-2.0
55- 60 F6.3 mag BCKm20 ? Bolometric correction K band for [M/H]=-2.0
62- 67 F6.3 mag BCVm30 ? Bolometric correction V band for [M/H]=-3.0
69- 74 F6.3 mag BCKm30 ? Bolometric correction K band for [M/H]=-3.0
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Acknowledgements: Eduard Masana, emasana(at)am.ub.es
(End) Patricia Vannier [CDS] 19-Jan-2006