Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21734306j&link_type=abstract
American Astronomical Society, AAS Meeting #217, #343.06; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
We present the first results of W[HE]2ATS2 (The Wesleyan Hobby-Eberly High-resolution Exoplanetary Atmospheric Transmission Spectroscopy Survey). To date, this survey has collected approximately 90 hours worth of high-resolution (R 60k) ground-based optical spectra with the 9.2m Hobby-Eberly Telescope, with additional observations in progress. The survey includes five different solar-type stellar systems with transiting hot Jupiters or Neptunes. Spectra are taken both in and out of transit; the two categories of observations are each coadded with the resulting coadded spectra differenced to search for absorption from resonance lines of alkali metals that are expected in these atmospheres. We will present our confirmation of previous detections of Na I absorption in HD 189733 and HD 209458 and present upper limits on and possible new detections of Na I and K I in these and other targets. In addition, we will describe the details and challenges of our data reduction and analysis. Finally, we will discuss our prospects for future work in searching for additional alkali metal lines and exospheric absorption. This work is supported by the National Science Foundation through an Astronomy and Astrophysics Research Grant (AST-0903573). The Hobby-Eberly Telescope is a joint project of the University of Texas at Austin, the Pennsylvania State University, Stanford University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen and is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly.
Barman Travis
Cochran William D.
Endl Michael
Jensen Adam G.
Koesterke Lars
No associations
LandOfFree
The Wesleyan Hobby-Eberly High-resolution Exoplanetary Atmospheric Transmission Spectroscopy Survey (W[HE]2ATS2): First Results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Wesleyan Hobby-Eberly High-resolution Exoplanetary Atmospheric Transmission Spectroscopy Survey (W[HE]2ATS2): First Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Wesleyan Hobby-Eberly High-resolution Exoplanetary Atmospheric Transmission Spectroscopy Survey (W[HE]2ATS2): First Results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1402961