Mode identification from line profile variations. III - Temperature variation and toroidal modes

Details Mode identification from line profile variations. III - Temperature variation and toroidal modes Mode identification from line profile variations. III - Temperature variation and toroidal modes

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224...41b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Jan. 1, 1987, p. 41-52.

Astronomy and Astrophysics

Astronomy

69

Gravity Anomalies, Line Spectra, Stellar Oscillations, Stellar Temperature, Legendre Functions, Limb Darkening

Scientific paper

The author shows that the temperature variation of a pulsating star can significantly affect the profile of a spectral line if the projected rotational velocity is sufficiently large. The least-squares algorithm discussed in a previous paper for estimating the pulsation parameters is extended to cover this case. The algorithm is also capable of taking into account all first-order terms in the eigenfunction. The author develops the algorithm for a purely toroidal mode and discusses how such modes may be distinguished from spheroidal modes.

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