Modal discrimination of pulsating stars by using Stromgren photometry

Details Modal discrimination of pulsating stars by using Stromgren photometry Modal discrimination of pulsating stars by using Stromgren photometry

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...234..262g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 234, no. 1-2, Aug. 1990, p. 262-268. Research supported by DGICYT.

Astronomy and Astrophysics

Astrophysics

113

Astronomical Photometry, Cepheid Variables, Dwarf Stars, Stellar Oscillations, Modal Response, Phase Shift, Stellar Gravitation, Stellar Models, Stellar Temperature

Scientific paper

New observations of Delta Scuti pulsating stars in the Stromgren photometric system are used for model identification of their oscillation periods. It is found that all the observed stars are radial pulsators. A new technique is outlined to calculate both the phase difference between temperature and radius variations together with their amplitude variation ratio.

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