Color index curves of pulsating stars predicted by simple models. I - The m(1)-index

Details Color index curves of pulsating stars predicted by simple models. I - The m(1)-index Color index curves of pulsating stars predicted by simple models. I - The m(1)-index

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...230..127a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 230, no. 1, April 1990, p. 127-130.

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Cepheid Variables, Stellar Atmospheres, Stellar Color, Stellar Models, Stellar Oscillations, Computational Astrophysics, Dwarf Stars, Stellar Luminosity

Scientific paper

The one zone model together with published model atmospheres is used to study the general properties of color index variations during the pulsation cycle. A first interesting result concerning the Stromgren m(1)-index is presented. The shape of the small amplitude curve of the m(1)-index appears to be closely related to the mean atmospheric parameters, T(e) and log g(e), and to the chemical composition. This could explain the variety of the m(1)-index curves observed in RR Lyrae and high amplitude Delta Scuti stars.

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