Radial Velocity Survey for Planets around Young stars (RVSPY): A transiting warm super-Jovian planet around HD 114082

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• Olga Zakhozhay (MPIA Heidelberg)
• Tuesday 14 February 2023, 13:00-14:00
• Ryle seminar room + ONLINE - Details to be sent by email.

If you have a question about this talk, please contact Dr Emily Sandford.

I will introduce our Radial Velocity Survey for Planets around Young stars (RVSPY), which is closely related to the NaCo-ISPY direct imaging survey, characterize our target stars and search for substellar companions at orbital separations smaller than a few au from the host star. In a frame of this program, we observe 111 stars, most of which are surrounded 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 109.8±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 companions 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 only three young (

This talk is part of the Exoplanet Seminars series.

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• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Exoplanet Seminars
• Institute of Astronomy Talk Lists
• LCLU Departmental Talks
• Ryle seminar room + ONLINE - Details to be sent by email

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