IRFM T_(eff) calibrations for cluster and field giants in the Vilnius, Geneva, RI_(C) and DDO photometric systems
- Creators
- Ramírez, I.
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Meléndez, J.
Abstract
Based on a large sample of disk and halo giant stars for which accurate effective temperatures derived through the InfraRed Flux Method (IRFM) exist, a calibration of the temperature scale in the Vilnius, Geneva, RI_(C) and DDO photometric systems is performed. We provide calibration formulae for the metallicity-dependent T_(eff) vs. color relations as well as grids of intrinsic colors and compare them with other calibrations. Photometry, atmospheric parameters and reddening corrections for the stars of the sample have been updated with respect to the original sources to reduce the dispersion of the fits. Application of our results to Arcturus leads to an effective temperature in excellent agreement with the value derived from its angular diameter and integrated flux. The effects of gravity on these T(_eff) vs. color relations are also explored by taking into account our previous results for dwarf stars.
Additional Information
© 2004 ESO. Received: 2 May 2003 . Accepted: 19 November 2003. We are grateful to the referee, Dr. M. Bessell, for his comments and suggestions which have certainly improved this paper. This work was supported by the Consejo Nacional de Ciencia y Tecnología (CONCYTEC, 253-2003) of Perú. I.R. acknowledges support from the Exchange of Astronomers Programme of the IAU.Attached Files
Published - aa3928.pdf
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Additional details
- Eprint ID
- 85139
- Resolver ID
- CaltechAUTHORS:20180306-132306320
- 253-2003
- Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC)
- International Astronomical Union
- Created
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2018-03-06Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field