# Accurate fundamental parameters for lower main‐sequence stars

@article{Casagrande2006AccurateFP,
title={Accurate fundamental parameters for lower main‐sequence stars},
author={Luca Casagrande and Laura Portinari and Chris Flynn},
journal={Monthly Notices of the Royal Astronomical Society},
year={2006},
volume={373},
pages={13-44}
}
• Published 24 August 2006
• Physics
• Monthly Notices of the Royal Astronomical Society
We derive an empirical effective temperature and bolometric luminosity calibration for G and K dwarfs, by applying our own implementation of the Infrared Flux Method to multiband photometry. Our study is based on 104 stars for which we have excellent BV(RI)CJHKS photometry, excellent parallaxes and good metallicities. Colours computed from the most recent synthetic libraries (ATLAS9 and MARCS) are found to be in good agreement with the empirical colours in the optical bands, but some…
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## References

SHOWING 1-10 OF 144 REFERENCES
Effective temperature scale and bolometric corrections from 2MASS photometry
We present 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
Determination of effective temperatures for an extended sample of dwarfs and subdwarfs (F0-K5)
• Physics
• 1996
We have applied the InfraRed Flux Method (IRFM) to a sample of 475 dwarfs and subdwarfs in order to derive their eective temperatures with a mean accuracy of about 1.5%. We have used the new
The Effective Temperature Scale of FGK Stars. II. Teff:Color:[Fe/H] Calibrations
• Physics
• 2005
We present up-to-date metallicity-dependent temperature versus color calibrations for main-sequence and giant stars based on temperatures derived with the infrared flux method (IRFM). Seventeen
The Effective Temperature Scale of FGK Stars. I. Determination of Temperatures and Angular Diameters with the Infrared Flux Method
• Physics
• 2005
The infrared flux method (IRFM) has been applied to a sample of 135 dwarf and 36 giant stars covering the following regions of the atmospheric parameter space: (1) the metal-rich ([Fe/H] ≳ 0) end
SPECTRAL LINE-DEPTH RATIOS AS TEMPERATURE INDICATORS FOR COOL STARS
The use of spectral line-depth ratios as a stellar thermometer in G and K dwarfs is developed and refined beyond an earlier study (Gray and Johnson 1991). Ratios incorporating a line with any degree
Determination of the temperatures of selected ISO flux calibration stars using the Infrared Flux Method
• Physics
• 1997
Eective temperatures for 420 stars with spec- tral types between A0 and K3, and luminosity classes between II and V, selected for a flux calibration of the Infrared Space Observatory, ISO, have been
Homogeneous photometry and metal abundances for a large sample of Hipparcos metal-poor stars★
• Physics
• 1999
Homogeneous photometric data (Johnson V, B-V, V-K, Cousins V-I and Stromgren b-y), radial velocities, and abundances of Fe, O, Mg, Si, Ca, Ti, Cr and Ni are presented for 99 stars with high-precision
Abundances for metal-poor stars with accurate parallaxes , I. Basic data
• Physics
• 2003
We present element-to-element abundance ratios measured from high dispersion spectra for 150 field subdwarfs and early subgiants with accurate Hipparcos parallaxes (errors <20%). For 50 stars new
A Study of the B−V Color-Temperature Relation
• Physics
• 1999
We derive a B-V color-temperature relation for stars in the least model-dependent way employing the best modern data. The fit we obtained with the form Teff = Teff{(B-V)0, [Fe/H], log g} covers stars
The open cluster distance scale - A new empirical approach
We present new BV(RI)C photometry for a sample of 54 local G and K stars with accurate Hipparcos parallaxes in the metallicity range 0:4 (Fe=H) +0:3. We use this sample to develop a completely