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Qualitative Explanation of Phase Shifts Observed in Line Profile Variations

Published online by Cambridge University Press:  12 April 2016

M.H. Montgomery
M.H. Montgomery*
Affiliation:
IoA, University of Cambridge, UK; e-mail:mikemon@ast.cam.ac.uk

Abstract

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In a series of papers, Telting & Schrijvers (1997) have demonstrated the correlation between the phase shift across a line, ∆Ψ0 and the l-value of a mode. In addition, they found that the phase shift of the harmonic (i.e., at frequency 2ω) was an indicator of m. In this poster, we present a heuristic derivation of these results under a set of idealized assumptions. Within this framework, exact analytical formulae for the Ilrn(x) were calculated, which are available upon request.

Type
Part 2.2. B-Type Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 216 - 217
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Telting, J.H. & Schrijvers, C. 1997, A&A, 317, 723 Google Scholar