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Connection between nonradial pulsations and stellar winds in massive stars. II. Nonradial pulsations in massive stars, observations and oddities

Journal Article · · Publ. Astron. Soc. Pac.; (United States)
DOI:https://doi.org/10.1086/131714· OSTI ID:5556794
A summary of the derivable properties of temporal line-profile analysis is presented in a table. In the table, a single observation provides unique phase information as well as an estimate of m, the number of mode lines of a surface wave intersecting the star's equator. Observed properties are considered along with nonradial oddities. It appears now that nearly all chemically normal and unveiled stars, and possibly some Wolf-Rayets, exhibit NRP. The oddities among NRP OB stars are found to include mode changing, mode growth/decay, unequal wave amplitudes, unequal wavelengths, and absorption/emission transients.
Research Organization:
National Solar Observatory, Tucson, AZ
OSTI ID:
5556794
Journal Information:
Publ. Astron. Soc. Pac.; (United States), Journal Name: Publ. Astron. Soc. Pac.; (United States) Vol. 98; ISSN PASPA
Country of Publication:
United States
Language:
English