EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 447/2 Article
Free access article

This article has an erratum: [erratum]

Issue A&A
Volume 447, Number 2, February IV 2006
Page(s) L17 - L19
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:200500232



A&A 447, L17-L19 (2006)
DOI: 10.1051/0004-6361:200500232

Letter

The periods of the intermediate polar RX J0153.3+7446

A. J. Norton and J. D. Tanner

Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
    e-mail: a.j.norton@open.ac.uk

(Received 6 December 2005 / Accepted 23 December 2005)

Abstract
We present the first optical photometry of the counterpart to the candidate intermediate polar RX J0153.3+7446. This reveals an optical pulse period of $2333\pm5$ s. Reanalysis of the previously published ROSAT X-ray data reveals that the true X-ray pulse period is probably $1974\pm30$ s, rather than the 1414 s previously reported. Given that the previously noted orbital period of the system is 3.94 h, we are able to identify the X-ray pulse period with the white dwarf spin period and the optical pulse period with the rotation period of the white dwarf in the binary reference frame, as commonly seen in other intermediate polars. We thus confirm that RX J0153.3+7446 is indeed a typical intermediate polar.


Key words: binaries: close -- stars: white dwarfs -- stars: individual: RX J0153.3+7446

SIMBAD Objects



© 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.