Tootfinder

Survival of satellites during the migration of a Hot Jupiter
Emeline Bolmont, Edward Galantay, Sergi Blanco-Cuaresma, Apurva V. Oza, Christoph Mordasini
https://arxiv.org/abs/2510.10826

Survival of satellites during the migration of a Hot Jupiter
We investigate the origin and stability of extrasolar satellites orbiting close-in gas giants, focusing on whether these satellites can survive planetary migration within a protoplanetary disk. To address this question, we used Posidonius, an N-Body code with an integrated tidal model, which we expanded to account for the migration of a gas giant within a disk. Our simulations include tidal interactions between a $1M_\odot$ star and a $1M_{Jup}$ planet, as well as between the planet and its sat…

On the Profile of Singularity Formation for the Incompressible Hydrostatic Boussinesq system
Slim Ibrahim, Quyuan Lin, Lingjun Qian, Edriss S. Titi
https://arxiv.org/abs/2510.10090

On the Profile of Singularity Formation for the Incompressible Hydrostatic Boussinesq system
The primitive equations (PEs) model planetary large-scale oceanic and atmospheric dynamics. While it has been shown that there are smooth solutions to the inviscid PEs (also called the hydrostatic Euler equations) with constant temperature (isothermal) that develop stable singularities in finite time, the effect of non-constant temperature on the singularity formation has not been established yet. This paper studies the stability of singularity formation for non-constant temperature in two scen…

🚨Job Alert !🚨 Postdoc Arizona State: characterization of #planetary surfaces and materials, numerical modeling of surface #geomorphology and evolution, modeling of ice stability and transport, icy terrains in the solar system 🧪⚒️

Is the high-energy environment of K2-18b special?
S. Rukdee, M. G\"udel, I. Vilovi\'c, K. Poppenh\"ager, S. Boro Saikia, J. Buchner, B. Stelzer, G. Roccetti, J. V. Seidel, V. Burwitz
https://arxiv.org/abs/2510.06939

Is the high-energy environment of K2-18b special?
K2-18b lies near the radius valley that separates super-Earths and sub-Neptunes, marking a key transitional regime in planetary and atmospheric composition. The system offers a valuable opportunity to study how M-dwarf high-energy stellar radiation influences atmospheric stability and the potential for sustaining volatile species, especially important in the context of the upcoming ELT and its ANDES spectrograph. This study characterizes the high-energy environment of K2-18 with X-ray observati…

Constraining the Mass Loss and the Kinetic Energy of Solar Coronal Mass with Far-Ultraviolet Flares
Nuri Park, Evgenya L. Shkolnik, Joe Llama
https://arxiv.org/abs/2509.16477 ht…

Constraining the Mass Loss and the Kinetic Energy of Solar Coronal Mass with Far-Ultraviolet Flares
Stellar eruptive events, such as flares and coronal mass ejections (CMEs), can affect planetary habitability by disturbing the stability of their atmospheres. For instance, strong stellar flares and CMEs can trigger atmospheric escape and, in extreme cases, may strip away the atmosphere completely. While stellar flares have been observed and explored at a wide range of wavelengths, the physical properties of stellar CMEs remain unconstrained due to the difficulty in observing them. In this cont…