Other
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20313005f&link_type=abstract
American Astronomical Society Meeting 203, #130.05; Bulletin of the American Astronomical Society, Vol. 35, p.1416
Other
Scientific paper
We present new high resolution spectroscopy for the eclipsing exosolar planetary system HD209458. These data were taken with the Subaru High Dispersion Spectrograph and cover the wavelength range 4150 -- 6800 Å. The observations were selected to sample the system both in and out of eclipse. We have developed our own reduction pipeline to avoid repixilization and other artefacts that may introduce additional noise, and compare with results from an IRAF reduction. The primary aim is to detect reflected light off of the close-in giant planet HD209458b. In this progress report we have extracted the 2d data from the twin CCD echellete following the curvature induced by instrumental flexure, and wavelength-calibrated the data. Analysis of reflected light will allow us to measure or place a limit on the albedo, and in addition to the other constraints on this increasingly increasingly well-studied system, to contribute to our understanding of planetary atmospheres. Observations were made with iodine cells for confirmation of the orbital phase. With this information, we are also isolating the spectrum in eclipse, with the aim of setting measurement limits on changes in the Balmer lines during transit.
Aoki Wako
Frye Brenda L.
Narita Norio
Suto Yasushi
Turner Edwin L.
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