EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 453/ 3 Article

Free access article

Issue A&A
Volume 453, Number 3, July III 2006
Page(s) L35 - L37
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:200600027



A&A 453, L35-L37 (2006)
DOI: 10.1051/0004-6361:200600027

Letter

A MOST probable explanation of the pulsation of WR 123

E. A. Dorfi1, A. Gautschy2 and H. Saio3

1  Institut für Astronomie der Universität Wien, Türkenschanzstr. 17, 1180 Wien, Austria
    e-mail: dorfi@astro.univie.ac.at
2  Wetterchrüzstr. 8c, 4410 Liestal, Switzerland
3  Astronomical Institute, Tohoku University, Sendai, Japan

(Received 28 November 2005 / Accepted 18 May 2006 )

Abstract
Aims.Resorting to the observed period of the cyclic part of WR 123's photometric variability we constrain its stellar parameters.
Methods.Radiation hydrodynamic simulations were performed on selected stellar envelope models for which also linear stability analyses were computed.
Results.Pulsations of massive hydrogen-rich stellar envelopes subject to sufficiently high luminosity-to-mass ratios are excited with periods that conform with the observed one by MOST in WR123.


Key words: stars: massive -- stars: pulsations -- stars: individual: WR123



© ESO 2006

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.