JHT at Wrocław
Constraints on angular numbers of pulsation modes
from spectroscopy
John Telting,   Wrocław,   June 2008
page 11
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Mode identification in multiperiodic stars:
Amplitude and phase diagrams across the line profile

 

Splits multiperiodic line-profile variations in amplitude and phase diagrams, and subsequently compares these diagrams with those of a model of the 3D surface-velocity field.

  Gies & Kullavanijaya (1988)
  Telting & Schrijvers (1997): Monte-Carlo simulations of IPS diagrams
  Mantegazza, Zerbi, Sacchi (2000): PPM method
  Zima (2006): FPF method

 

Features of the method:
  Pulsation modes up to L∼20 can be detected in rotating stars
  Can also be applied to slowly rotating stars
  Is more sensitive to sectoral modes (|M|=L) than to zonal modes (M=0)
  Is complementary to the Moment Method
  The FPF method is accessible to everyone through the FAMIAS package
      (Zima, Poster 60)