On the shoulders of giants

Session

Cold Jupiters OR inner low-mass planets: statistical properties

25 Mar 2026, 16:50

Archivio di Stato - Torino, Italy

16. Cold Jupiters and the Architecture of Planetary Systems: What We Know and What We Miss (invited talk)

Dr Anne-Marie Lagrange (Laboratory of Space Studies and Instrumentation in Astrophysics, France)

25/03/2026, 16:50

Oral contribution

Giant planets are key architects of planetary systems: they sculpt protoplanetary disks, shape the formation and long-term stability of inner rocky worlds, and likely mediate the delivery of volatiles needed for habitable conditions. Yet the occurrence, architectures, and dynamical impact of cold Jupiters remain only loosely constrained. Our main detection techniques each probe a limited and...

17. Cold Jupiters around intermediate-mass stars: occurrence rates from a 20-year CORALIE RV survey

Dr Emile Fontanet (Université de Genève, Switzerland)

25/03/2026, 17:15

Oral contribution

The dependence of cold Jupiter occurrence on host-star parameters (e.g. mass or metallicity) remains a key question in giant-planet demographics. In particular, current statistics for intermediate-mass stars (1.5 - 4 M⊙) can still be improved, as the number of reported planets around these targets is low (<250) and affected by stellar-variability false positives (e.g. oscillations). I will...

47. Long-term evolution of cold Jupiter magnetism

Dr Daniele Viganò (Institut de Ciències de l'Espai (ICE-CSIC) Barcelona, Spain)

25/03/2026, 17:35

Oral contribution

While we know with great detail the magnetic field of Jupiter and several works have successfully reproduced several features, including the atmospheric winds, the only studies for giant exoplanet magnetism rely on scaling laws. We present a novel approach, as shown in Elias-López et al. 2025, A&A, 696: we run 3D dynamo simulations (solving the anelastic MHD equations with MagIC) with the...

20. Demographics of sub-Neptunes at Short Orbital Periods, and out to the Habitable Zone (invited talk)

Dr Gijs Mulders (Pontificia Universidad Católica de Chile, Chile)

26/03/2026, 09:00

Oral contribution

At least half the stars in the galaxy are orbited by planets smaller than Neptune and orbital periods less than a year. The demographics of these mini-Neptunes, super-Earths, and terrestrial exoplanets are constrained by transit and radial velocity surveys, often in synergy. In this talk I will give an overview of the statistical properties of these inner planets and planetary systems. I will...

21. Constraining the Migration Channels of Warm Jupiters Using Population-Level Eccentricities

Dr Marvin Morgan (UC Santa Barbara, USA)

26/03/2026, 09:25

Oral contribution

Giant planets are expected to predominantly form beyond the water ice line and occasionally undergo inward migration. Unlike hot Jupiters, which can result from high-eccentricity tidal migration, longer-period giant planets are in many ways more challenging to explain because they reside outside the tidal influence of their host stars. Orbital eccentricities offer important clues about the...