Constraints on angular numbers of pulsation modes from spectroscopy

Details Constraints on angular numbers of pulsation modes from spectroscopy Constraints on angular numbers of pulsation modes from spectroscopy

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..112t&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 112-117

Physics

4

Scientific paper

Asteroseismology relies on accurate observational mode identification. High-resolution spec- troscopy allows to detect such crucial information as the pulsational degree ℓ, the azimuthal number m, and pulsation amplitudes, directly from time series of observations. The advan- tage of using both standard photometric techniques and high-resolution spectroscopy is that not only pulsational temperature variations can be detected, but also the pulsational velocity field, yielding valuable extra information. In this paper I review the spectroscopic mode-identification methods that have been developed over the last decades, with emphasis on the application to hot stars.

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