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26 April 2024 |
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The luminosity calibration of the uvby-$eta$ photometry | | C. Jordi
; X. Luri
; E. Masana
; J. Torra
; F. Figueras
; A. Domingo
; A.E. Gómez
; M.O. Mennessier
; | | Date: |
2 Oct 2000 | | Subject: | astro-ph | | Abstract: | The ESA HIPPARCOS satellite has provided astrometry of unprecedented accuracy, allowing to reassess, improve and refine the pre-HIPPARCOS luminosity calibrations. We review the "classical" absolute magnitude calibrations with the Stroemgren-Crawford intermediate-band photometric system. A small zero point correction of about 2-4% seems necessary, as well as to refine the dependences on metallicity and projected rotational velocity. The need of a rigorous statistical treatment of the extremely precise HIPPARCOS to derive definite dependences of the luminosity on physical stellar parameters is emphasized. | | Source: | arXiv, astro-ph/0010019 | | Services: | Forum | Review | PDF | Favorites | |
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