A dataset provided by the European Space Agency

Obs ID 2357139
Target/Line-of-sight TOI-5159
Gaia DR2 ID GAIA DR2 634161679420716032
URL https://cheops.unige.ch/archive_browser/?visit-id=2357139
DOI https://doi.org/10.57780/esa-p8box5e
Author European Space Agency
Description of observation
  • Target RA (J2000): 142.785965 °
  • Target Dec (J2000): 20.01964 °
  • Gaia GMag: 9.19

  • Programme ID: CH_PR140068
  • Programme Manager: EGGER
  • PI of observing programme: Benz
  • Title of programme: Axis 1 - Constraining the abundance of water in hot planets (HotWatermelon)
  • Abstract: Planets located close enough to their star experience evaporation, which leads to a dichotomy in the possible gas content of these objects. These planets either contain more than around one percent of gas (in mass), or no gas at all (see Owen and Wu, 2017). This dichotomy, when expressed in term of mass-radius relation, implies the existence of a region in the mass-radius diagram of hot planets, where dry planets cannot exist. We propose to observe planets that could lie in this region with CHEOPS. Combining a precise radius and mass will allow us to identify planets in this forbidden region, hence showing that they have to contain volatiles, most likely water. Our data, combined with future JWST observations, will also constrain the efficiency of evaporation.
Temporal Coverage 2024-02-19T23:51:57Z / 2024-02-20T07:20:00Z
Version 3.0
Mission Description CHEOPS (Benz et al., https://doi.org/10.1007/s10686-020-09679-4) is a European Space Agency (ESA) mission in partnership with Switzerland with important contributions to the payload and the ground segment from Austria, Belgium, France, Germany, Hungary, Italy, Portugal, Spain, Sweden and the United Kingdom.

The satellite has a single payload comprising an ultra-high precision photometer covering the 330 - 1100 nm wavelength range in a single photometric band. Observations are made as part of the Guaranteed Time Observing Programme that is formulated by the CHEOPS Science Team, and the Guest Observers Programme through which the Community at large can apply for CHEOPS time.
Creator Contact https://www.cosmos.esa.int/web/cheops/contact
Date Published 2024-12-17T11:32:23Z
Keywords CHEOPS, EXOPLANETS, wide-band photometer
Acknowledgements https://www.cosmos.esa.int/web/cheops-guest-observers-programme/publication-guidelines
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2024, 'TOI-5159', 3.0, European Space Agency, https://doi.org/10.57780/esa-p8box5e