Hostname: page-component-7b9c58cd5d-g9frx Total loading time: 0 Render date: 2025-03-19T17:01:09.494Z Has data issue: false hasContentIssue false
  • English
  • Français

Ground-based detections of sodium in HD 209458b's atmosphere in two data sets

Published online by Cambridge University Press:  01 May 2008

S. Albrecht ,
I. Snellen ,
E. de Mooij  and
R. Le Poole
S. Albrecht
Affiliation:
Leiden Observatory, University of Leiden, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands email: albrecht@strw.leidenuniv.nl
I. Snellen
Affiliation:
Leiden Observatory, University of Leiden, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands email: albrecht@strw.leidenuniv.nl
E. de Mooij
Affiliation:
Leiden Observatory, University of Leiden, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands email: albrecht@strw.leidenuniv.nl
R. Le Poole
Affiliation:
Leiden Observatory, University of Leiden, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands email: albrecht@strw.leidenuniv.nl
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present two separate ground-based detections of sodium in the transmission spectrum of HD 209458b. First we reanalyzed an archival data set from the HDS spectrograph on Subaru, which shows sodium at a >5σ level. Secondly, our preliminary results of a UVES/VLT data set indicate sodium absorption at a similar level, although the data cover the eclipse only partially. Both results are fully consistent with the HST results of Charbonneau et al. (2002). The Na D absorption feature seems to be resolved in the narrowest passband.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 520 - 523
Copyright
Copyright © International Astronomical Union 2009

References

Brown, T. M. 2001, ApJ, 553, 1006CrossRefGoogle Scholar
Charbonneau, D., Brown, T. M., Noyes, R. W., & Gilliland, R. L. 2002, ApJ, 568, 377CrossRefGoogle Scholar
Lundstrom, I., Ardeberg, A., Maurice, E., & Lindgren, H. 1991, A&AS, 91, 199Google Scholar
Narita, N., Suto, Y., Winn, J. N., et al. 2005, PASJ, 57, 471CrossRefGoogle Scholar
Redfield, S., Endl, M., Cochran, W. D., & Koesterke, L. 2008, ApJL, 673, L87CrossRefGoogle Scholar
Seager, S. & Sasselov, D. D. 2000, ApJ, 537, 916CrossRefGoogle Scholar
Snellen, I. A. G., Albrecht, S., de Mooij, E. J. W., & LePoole, R. S. Poole, R. S., arXiv:0805.0789v1Google Scholar
Sing, D. K., Vidal-Madjar, A., Desert, J. M., et al. arXiv0802.3864v2Google Scholar
Winn, J. N., Suto, Y., Turner, E. L., et al. 2004, PASJ, 56, 655CrossRefGoogle Scholar