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SUMMARY:Titanium chemistry in the ultra-hot Jupiter WASP-121 b - Jens Hoei
 jmakers (Lund)
DTSTART:20220315T130000Z
DTEND:20220315T140000Z
UID:TALK168149@talks.cam.ac.uk
CONTACT:Dr Annelies Mortier
DESCRIPTION:Ultra-hot Jupiters form a new class of exoplanets that tend to
  orbit hot early type stars in short periods\, and may be heated to temper
 atures of far over 2\,000K on their day-sides. The extreme temperature dis
 sociates all but the most strongly bound molecules and a significant fract
 ion of the atomic gas may be thermally ionised. Under these circumstances\
 , line absorption lines by metals are dominant sources of opacity. We have
  carried out transit observations of the ultra-hot Jupiter WASP-121 b\, re
 vealing a rich spectrum of various metals\, including iron and vanadium\, 
 but with a notable absence of titanium\, which may be depleted due to cond
 ensation processes. In this talk I will present our recent observations th
 at target metal emission lines on the planet’s dayside\, and demonstrate
  the power of high-resolution ground-based spectrographs to help us unders
 tand global chemical environments of hot exoplanets.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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