SIMBAD references

2020MNRAS.494.2995D - Mon. Not. R. Astron. Soc., 494, 2995-3013 (2020/May-2)

The average physical properties of A-G stars derived from uvby-H β Stromgren-Crawford photometry as the basis for a spectral-classification synthetical approach.

DALLE MESE G., LOPEZ-CRUZ O., SCHUSTER W.J., CHAVARRIA-K C. and IBARRA-MEDEL H.J.

Abstract (from CDS):

We have revisited and updated the uvby Stromgren colour and colour-index distributions of A-, F-, and early G-type main-sequence stars. For this aim, we selected 7054 dwarf stars along with 65 Morgan-Keeman (MK) standard stars within the same spectral range but covering all luminosity classes. The standard stars were selected following the MK mandate strictly, using spectra taken at classification resolution recorded on photographic plates. We used the colours of these stars to determine the effective temperature and surface gravity. After correcting for systematic offsets using fundamental parameters and considering a few exceptions, we find a one-to-one correspondence, among MK spectral types, Stromgren photometry, and their associated physical properties.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): standards - techniques: photometric - stars: fundamental parameters - stars: statistics - solar neighbourhood

Simbad objects: 329

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2021.04.18-07:57:11

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