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SUMMARY:Uncovering Long-Period Transiting Exoplanets with TESS and CHEOPS 
 - Amy Tuson (Cavendish)
DTSTART:20240220T130000Z
DTEND:20240220T140000Z
UID:TALK211567@talks.cam.ac.uk
CONTACT:Dr Emily Sandford
DESCRIPTION:Long-period transiting exoplanets are incredibly important\, a
 llowing us to study planets with temperatures similar to those in our own 
 solar system. However\, due to its observing strategy\, the Transiting Exo
 planet Survey Satellite (TESS) is heavily biased towards the discovery of 
 short-period planets. To increase the yield of long-period planets\, I am 
 using TESS “duotransits” - planet candidates with two observed transit
 s separated by a large gap\, typically two years. From the two non-consecu
 tive transits\, the period of the planet is unknown\, but there exists a d
 iscrete set of period aliases. As a member of the CHaracterising ExOPlanet
  Satellite (CHEOPS) Duotransit Program\, I perform targeted follow-up of T
 ESS duotransits to recover their true periods. To identify the best target
 s for CHEOPS follow-up\, I developed a specialised pipeline to discover TE
 SS duotransits. In this seminar\, I will present my pipeline\, its five di
 scoveries and the sample of small\, long-period planets being uncovered by
  TESS and CHEOPS\, including the Neptune-mass planet TOI-5678 b and the br
 ight multi-planet system HD 15906.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
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