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Stars, Interstellar Medium and the Galaxy

Brian Jackson

2012

Techniques: photometric

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Full-Text Articles in Physical Sciences and Mathematics

Infrared Eclipses Of The Strongly Irradiated Planet Wasp-33b, And Oscillations Of Its Host Star, Drake Deming, Jonathan D. Fraine, Pedro V. Sada, Nikku Madhusudhan, Heather A. Knutson, Joseph Harrington, Jasmina Blecic, Sarah Nymeyer, Alexis M.S. Smith, Brian Jackson Aug 2012

Infrared Eclipses Of The Strongly Irradiated Planet Wasp-33b, And Oscillations Of Its Host Star, Drake Deming, Jonathan D. Fraine, Pedro V. Sada, Nikku Madhusudhan, Heather A. Knutson, Joseph Harrington, Jasmina Blecic, Sarah Nymeyer, Alexis M.S. Smith, Brian Jackson

Brian Jackson

We observe two secondary eclipses of the strongly irradiated transiting planet WASP-33b, in the Ks band at 2.15 μm, and one secondary eclipse each at 3.6 μm and 4.5 μm using Warm Spitzer. This planet orbits an A5V δ-Scuti star that is known to exhibit low-amplitude non-radial p-mode oscillations at about 0.1% semi-amplitude. We detect stellar oscillations in all of our infrared eclipse data, and also in one night of observations at J band (1.25 μm) out of eclipse. The oscillation amplitude, in all infrared bands except Ks, is about the same as in the optical. However, the stellar oscillations …