Abstract
Replying to: A. Lecavelier des Etangs, A. Vidal-Madjar & J.-M. Désert Nature 456, 10.1038/nature07402 (2008)
Lecavelier des Etangs et al.1 object to the conclusion by Holmström et al.2 that radiation pressure alone cannot explain the Lyman-α absorption observed3 during transits of HD 209458b. We agree that hydrogen atoms can be accelerated to large velocities by radiation pressure. However, with our model we cannot reproduce the observed spectrum, as shown in the Supplementary Information and Fig. 3 of ref. 2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Lecavelier des Etangs, A., Vidal-Madjar, A. & Désert, J.-M. The origin of hydrogen around HD 209458b. Nature 456 10.1038/nature07402 (2008)
Holmström, M. et al. Energetic neutral atoms as the explanation for the high-velocity hydrogen around HD 209458b. Nature 451, 970–972 (2008)
Vidal-Madjar, A. et al. An extended upper atmosphere around the extrasolar planet HD209458b. Nature 422, 143–146 (2003)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Holmström, M., Ekenbäck, A., Selsis, F. et al. Holmström et al. reply. Nature 456, E1–E2 (2008). https://doi.org/10.1038/nature07403
Issue Date:
DOI: https://doi.org/10.1038/nature07403
- Springer Nature Limited