Warm giant exoplanet characterisation: current state, challenges and outlook

S Müller, R Helled - Frontiers in Astronomy and Space Sciences, 2023 - frontiersin.org
The characterisation of giant exoplanets is crucial to constrain giant planet formation and
evolution theory and for putting the solar-system's giant planets in perspective. Typically …

Retrieval survey of metals in six ultrahot Jupiters: trends in chemistry, rain-out, ionization, and atmospheric dynamics

S Gandhi, A Kesseli, Y Zhang, A Louca… - The Astronomical …, 2023 - iopscience.iop.org
Ground-based high-resolution spectroscopy (HRS) has detected numerous chemical
species and atmospheric dynamics in exoplanets, most notably ultrahot Jupiters (UHJs) …

Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants

Y Chachan, HA Knutson, J Lothringer… - The Astrophysical …, 2023 - iopscience.iop.org
Relating planet formation to atmospheric composition has been a long-standing goal of the
planetary science community. So far, most modeling studies have focused on predicting the …

TOI-5205b: A Short-period Jovian Planet Transiting a Mid-M Dwarf

S Kanodia, S Mahadevan, J Libby-Roberts… - The Astronomical …, 2023 - iopscience.iop.org
We present the discovery of TOI-5205b, a transiting Jovian planet orbiting a solar metallicity
M4V star, which was discovered using Transiting Exoplanet Survey Satellite photometry and …

Enriching inner discs and giant planets with heavy elements

B Bitsch, J Mah - Astronomy & Astrophysics, 2023 - aanda.org
Giant exoplanets seem to have on average a much higher heavy-element content than the
Solar System giants. Past attempts to explain this heavy-element content include collisions …

Constraining the atmospheric elements in hot Jupiters with Ariel

F Wang, Q Changeat, G Tinetti, D Turrini… - Monthly Notices of the …, 2023 - academic.oup.com
One of the main objectives of the European Space Agency's Ariel telescope (launch 2029) is
to understand the formation and evolution processes of a large sample of planets in our …

Composition of giant planets: The roles of pebbles and planetesimals

C Danti, B Bitsch, J Mah - Astronomy & Astrophysics, 2023 - aanda.org
One of the current challenges of planet formation theory is to explain the enrichment of
observed exoplanetary atmospheres. While past studies have focused on scenarios where …

A new dynamical modeling of the WASP-47 system with CHEOPS observations

V Nascimbeni, L Borsato, T Zingales, G Piotto… - Astronomy & …, 2023 - aanda.org
Among the hundreds of known hot Jupiters (HJs), only five have been found to have
companions on short-period orbits. Within this rare class of multiple planetary systems, the …

A Revisit of the Mass–Metallicity Trends in Transiting Exoplanets

Q Sun, SX Wang, L Welbanks, J Teske… - The Astronomical …, 2024 - iopscience.iop.org
The two prevailing planet formation scenarios, core accretion and disk instability, predict
distinct planetary mass–metallicity relations. Yet, the detection of this trend remains …

A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS

MI Jones, Y Reinarz, R Brahm, MT Pinto… - Astronomy & …, 2024 - aanda.org
We report on the confirmation and follow-up characterization of two long-period transiting
substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose …