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SUMMARY:Carbon monoxide emission in the ultra-hot Jupiter WASP-33 b indica
 tes an eastward hot spot
DTSTART;VALUE=DATE-TIME:20220907T141500Z
DTEND;VALUE=DATE-TIME:20220907T143000Z
DTSTAMP;VALUE=DATE-TIME:20241101T160817Z
UID:indico-contribution-143@meetings.aip.de
DESCRIPTION:Speakers: Lennart van Sluijs ()\nCharacterisation of exoplanet
  atmospheres using high-resolution spectra provides a unique window into t
 heir composition\, dynamics as well as their formation and evolution pathw
 ays. Our MEASURE data set contains a diverse set of 11 targets with a wide
  range of periods\, equilibrium temperatures and masses. For one of the ta
 rgets\, the Ultra Hot Jupiter WASP-33 b\, we report the first detection of
  CO emission lines at high spectral resolution from its thermal spectrum. 
 These emission lines provide unambiguous evidence of a thermal inversion l
 ayer in its atmosphere. Moreover\, by incorporating a Bayesian framework w
 ith 1D PHOENIX and 3D GCM atmospheric models\, we show via Cross-Correlati
 on-to-log-Likelihood mapping that the spectra indicate an eastward hotspot
 . Our resolution of R=15\,000 pushes the High-Resolution Cross-Correlation
  Spectroscopy method to its lowest resolution limits. This bodes well for 
 systems that may require the use of lower resolution spectra to improve ph
 oton collection\, such as small planets orbiting in the close in habitable
  zones of small\, faint M-dwarfs. Finally\, we will show some preliminary 
 results from the other targets in the MEASURE survey.\n\nhttps://iaus379.a
 ip.de/event/16/contributions/143/
LOCATION:Leibniz Institute for Astrophysics Potsdam (AIP) Lecture Hall
URL:https://iaus379.aip.de/event/16/contributions/143/
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