Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...279l..25r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 279, no. 1, p. L25-L28
Astronomy and Astrophysics
Astrophysics
6
Astronomical Models, Fourier Analysis, Line Spectra, Mathematical Models, O Stars, Stellar Models, Stellar Oscillations, Stellar Rotation, Time Series Analysis, Amplitudes, Modes, Phase Shift
Scientific paper
We present CLEAN time-series analysis of synthetic line profiles obtained from a non-radially pulsating stellar model which incorporates effects of rotation. Two models (a low-degree l = 2, m = -1; and a high degree l = -m = 8) were calculated for a rapidly rotating late O-type star, where the prograde oscillation frequency in the corotating frame of the star is twice that of the stellar rotation frequency. An interpretation of the results based upon the usual slow-rotation assumptions gives a mis-identification of both period and mode of oscillation for the low-degree model, but correctly identifies the non-radial pulsation (NRP) characteristics of the sectorial model. The mis-identification of the low-degree model has possible implications for previous mode identifications, and we urge caution when analyzing the line profile variations of rapidly-rotating, non-radially pulsating stars.
Aerts Christine
Reid Andy H. N.
No associations
LandOfFree
Limits on mode identifications in rotating, non-radially pulsating stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Limits on mode identifications in rotating, non-radially pulsating stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits on mode identifications in rotating, non-radially pulsating stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-807505