CHEOPS Science Workshop VI

Goal of the meeting

The CHEOPS workshop VI will be held from 11 to 13 January 2022, 20 months after the beginning of CHEOPS science operations. The workshop will be the occasion for the planetary science community at large to discuss and share the first main results of CHEOPS in different fields, from the planetary internal structure to atmospheric characterization, etc. Participants are invited to propose contributed talks and posters on all scientific aspects linked to CHEOPS, including CHEOPS based-results as well as proposals for future observations and synergies with other facilities, as for example:

Credit: Frederik Peeters / David Ehrenreich


Registration is closed. Due to the recent evolution of the pandemic situation, the workshop will be online only.


(11th - 13th January, 2022)

To join the social and poster part:

The zoom link is available in (in the meeting hall) and will be sent per email to all registered participants.

All times are given in Central European Time.

Tuesday, 11th January 2022

Time Title Speaker
13:00 - 13:05 Welcome Willy Benz
13:05 - 13:10 Logistics Christopher Broeg
13:10 - 15:00 The CHEOPS mission - Chair: Didier Queloz
CHEOPS Mission Status Christopher Broeg
CHEOPS Performance Andrea Fortier
CHEOPS Data Reduction Pipeline Sergio Hoyer
Mission extension David Ehrenreich
The CHEOPS Guest Observers Programme Kate Isaak
15:00 - 15:30 Break
15:30 - 18:00 Formation / Evolution / Internal structure - Chair: Andrea Fortier
The Radius Valley across stellar types Julia Venturini
The origin of the radius valley: formation and evolution Christoph Mordasini
Architecture of Exoplanetary Systems: A system level approach in the age of CHEOPS Lokesh Mishra
A compositional link between rocky exoplanets and their host stars Vardan Adibekyan
Characterisation of the interior structures and atmospheres of multiplanetary systems Lorena Acuna
Unveiling the atmospheric evolution of exoplanets: the PASTA tool Andrea Bonfanti

Wednesday, 12th January 2022

Time Title Speaker
13:00 - 15:05 Planetary systems and synergy with other missions - 1 Chair: Magali Deleuil
Unveiling the TOI-1064 system with TESS, CHEOPS, and HARPS Tom Wilson
HD 93963: a planetary system hosting the first ultra-short period super-Earth discovered by CHEOPS Luisa Serrano
Investigating the architecture and internal structure of the TOI-561 system planets with CHEOPS, HARPS-N and TESS Gaia Lacedelli
Uncovering the true periods of two sub-Neptunes around a bright, young star Hugh Osborn
Cheops reveals the tidal deformation of WASP-103b Susana Barros
15:05 - 16:45 Break and poster session
16:45 - 18:00 Planetary systems and synergy with other missions - 2 Chair: Heike Rauer
GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star Kristine Lam
TOI-178 Adrien Leleu
Exploring the Nu2 Lupi system with CHEOPS Laetitia Delrez

Thursday, 13th January 2022

Time Title Speaker
10:00 - 12:00 Poster session
13:00 - 15:05 Atmospheres - Chair: Kate Isaak
Atmospheric characterization of the ultra-hot Neptune LTT 9779 b Sergio Hoyer
Discriminating between Conflicting Measurements of Exoplanet Transit Parameters through Joint Analysis of Observations by TESS and CHEOPS Fan Yang
Spin-orbit alignment from transit photometry: the case for multi-colour observations Matthew Hooton
The atmosphere and architecture of WASP-189 b probed by its CHEOPS phase curve Adrien Deline
Novel Approaches for Fitting and Interpreting Phase Curves: Reflected Light and Thermal Emission Kevin Heng
15:05 - 15:35 Break
15:35 - 17:40 Other science with CHEOPS - Chair: Davide Gandolfi
CHEOPS' view on orbital light pollution Nicolas Billot
The changing face of AU Mic b: transit timing variations, stellar spots, spin-orbit commensurability Gyula Szabo
A Search for Longer-Period Exoplanets with TESS and CHEOPS Amy Tuson
Hot Jupiters, Cold Kinematics Alex Mustill
CHEOPS Timing capabilities:  searching for TTVs of warm-Jupiter exoplanets Luca Borsato
17:40 Closing Remarks Chris Broeg

Poster presenters

Nr. Author/Presenter Title / PDF Download
1 Octavi Fors K2-149: A highly packed system with four new sub-Neptunes
2 Lorena Acuña Characterisation of the interior structures and atmospheres of multiplanetary systems
3 Andreas Krenn Energy-Limited hydrodynamic escape: a critical assessment of applicability
4 Dominique Petit A first transmission spectrum of Wasp-15b with Gaussian Process modelling
5 Alexander Mustill Hot Jupiters, Cold Kinematics
6 Zoltan Garai Rapidly rotating stars and their transiting planets: KELT-17b, KELT-19Ab, and KELT-21b in the CHEOPS and TESS era
7 Emma Esparza-Borges CHOCOLATE: a new Chromatic Line-Profile Tomography Technique to retrieve Transmission Spectroscopy
8 Jan Philip Sindel Revisiting fundamental properties of TiO2 nanoclusters as condensation seeds in hot Jupiter atmospheres
9 Gopal Hazra The impact of Stellar Coronal Mass Ejection and Flare on the atmosphere of hot Jupiter HD189733b and its transit signature
10 Dominic Samra Mineral Snowflakes on Exoplanet and Brown Dwarf Atmospheres
11 Isa Rebollido The search for exocomets in photometry using CHEOPS No detection around 5 Vul
12 Caroline Dorn Hidden water in magma ocean exoplanets
13 Sergio Hoyer Comprehensive characterization with CHEOPS and TESS. Confirmation of a 5th transiting planet
14 Mohammad Eftekhar Comprehensive analysis of TESS Full Orbital Phase Curve of WASP-121b
Mohammad_Eftekhar_-_CHEOPS_Science_Workshop_VI.pdf (Talk)
15 Malcolm Fridlund The treatment of Red dwarf Host stars
16 Szilard Csizmadia Heat Redistribution in and Intrinsic Heat of a Hot Jupiter from TESS Phase Curve and Occultation Measurement


Andreas Krenn


Caroline Dorn


Gopal Hazra


Lorena Acuña


Mohammad Eftekhar



The workshop will be held online.