EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 423/1 Article
Free access article

Issue A&A
Volume 423, Number 1, August III 2004
Page(s) 391 - 395
Section Planets and planetary systems
DOI http://dx.doi.org/10.1051/0004-6361:20034532



A&A 423, 391-395 (2004)
DOI: 10.1051/0004-6361:20034532

Modelling the Lyman  $\beta $ dayglow in the Jovian atmosphere

M. Barthélemy1, C. Parkinson2, 3, J. Lilensten1 and R. Prangé4

1  Laboratoire de Planétologie de Grenoble, CNRS-UJF, BP 53, 38041 Saint Martin d'Hères, Cedex 9, France
    e-mail: mathieu.barthelemy@ujf-grenoble.fr
2  MS 150-21, Caltech, Pasadena, California 91125, USA
3  MS 183-501, JPL, Pasadena, California 9110, USA
    e-mail: cdp@gps.caltech.edu
4  Observatoire de Paris-Meudon, 5 place Jules Jansen, 92195 Meudon, France
    e-mail: renee.prange@obspm.fr

(Received 17 October 2003 / Accepted 15 March 2004 )

Abstract
The Lyman  $\beta $ dayglow of Jupiter provides an important source of information about its atmosphere. The H Lyman  $\beta $ and the H 2 6-0 P(1) line of the Lyman system overlap, resulting in a coupling effect between these two lines. In this paper, we evaluate the effect of this overlapping via radiative transfer modelling and show its effect both on the integrated intensity and the line profile. The intensity increases at about 1025 Å at the centre of the disc, tends to slightly decrease at the limb, and creates an asymmetry in the profile. This asymmetry is also present in the jovian H-Lyman $\alpha$ bulge region.


Key words: radiative transfer -- planets and satellites: individual: Jupiter -- ultraviolet: solar system




© 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.