New Results on Pulsating OB Stars
| dc.creator | Moskalik, Pawel | |
| dc.date | 1995-05-11 | |
| dc.date | 1995-05-12 | |
| dc.date.accessioned | 2026-07-07T08:58:17Z | |
| dc.date.available | 2026-07-07T08:58:17Z | |
| dc.description | Until very recently the physical mechanism driving oscillations in $β$~Cep and other early type stars has been a mystery. The breakthrough came with the publication of new OPAL and OP opacity data. Model calculations with the new opacities have demonstrated that the pulsations are driven by the familiar $κ$-mechanism, acting in the metal opacity bump at $T \approx 2 \times 10^5$K. The mechanism excites the low order $p$- and $g$-modes in the upper part of the instability strip and the high order $g$-modes in the lower part of the strip. The theoretical instability domains agree well with the observed domains of the $β$~Cep and the SPB stars. In this review I present these recent theoretical results and discuss their consequences for our understanding of B stars pulsations. | |
| dc.description | uuencoded compressed PostScript, 12 pages with 2 figures included, Invited review for Proceedings of IAU Coll. #155 "Astrophysical Application of Stellar Pulsatin" (Cape Town, February 1995), Eds. R. S. Stobie & P. A. Whitelock, ASP Conference Series (in press) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9505057 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9505057 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147266 | |
| dc.subject | Astrophysics | |
| dc.title | New Results on Pulsating OB Stars | |
| dc.type | text |