BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Radial Velocity Survey for Planets around Young stars (RVSPY): A t
 ransiting warm super-Jovian planet around HD 114082 - Olga Zakhozhay (MPIA
  Heidelberg)
DTSTART:20230214T130000Z
DTEND:20230214T140000Z
UID:TALK197203@talks.cam.ac.uk
CONTACT:Dr Emily Sandford
DESCRIPTION:I will introduce our Radial Velocity Survey for Planets around
  Young stars (RVSPY)\, which is closely related to the NaCo-ISPY direct im
 aging survey\, characterize our target stars and search for substellar com
 panions at orbital separations smaller than a few au from the host star. I
 n a frame of this program\, we observe 111 stars\, most of which are surro
 unded by debris discs. We use the FEROS spectrograph\, mounted to the MPG/
 ESO 2.2 m telescope in Chile\, to obtain high signal-to-noise spectra and 
 time series of precise radial velocities (RVs). I will also tell about the
  discovery of a warm super-Jovian companion around HD 114082 based on a 10
 9.8±0.4 day signal in the combined RV data from FEROS and HARPS\, and on 
 one transit event in the TESS photometry. The best-fit model indicates a 8
 .0±1.0 M Jup companion with a radius of 1.00±0.03 R Jup in orbit with a 
 semi-major axis of 0.51±0.01 au and an eccentricity of 0.4±0.04. The com
 panions orbit agrees with the known near edge-on debris disk located at 
 ∼28 au. HD 114082 b is possibly the youngest (15±6 Myr)\, and one of on
 ly three young (<100 Myr) giant planetary companions for which both their 
 mass and radius have been determined observationally. It is probably the f
 irst properly model-constraining giant planet that allows distinguishing b
 etween hot and cold-start models. It is significantly more compatible with
  the cold-start model.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
END:VEVENT
END:VCALENDAR