EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 428/3 Article
Free access article

Issue A&A
Volume 428, Number 3, December IV 2004
Page(s) 1039 - 1042
Section Instruments, observational techniques, and data processing
DOI http://dx.doi.org/10.1051/0004-6361:20041682



A&A 428, 1039-1042 (2004)
DOI: 10.1051/0004-6361:20041682

On detecting short-lived p modes in a stellar oscillation spectrum

T. Appourchaux

Institut d'Astrophysique Spatiale, Université Paris XI - CNRS, Bâtiment 121, 91405 Orsay Cedex, France
    e-mail: Thierry.Appourchaux@ias.u-psud.fr

(Received 16 July 2004 / accepted 26 September 2004 )

Abstract
The false alarm probability for detecting peaks embedded in a power spectrum of noise was given by Scargle (1982). This test has been used in helioseismology to detect long-lived modes such as g modes (Appourchaux et al. 2000). With the development of asteroseismology, there is now a need to define a similar test but for short-lived p modes. In this article, I define a false alarm test for detecting short-lived p modes, and I give the probability of detecting such modes given their signal-to-noise ratio, their linewidths and the duration of observation.


Key words: stars: oscillations -- methods: statistical




© ESO 2004


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.