Prépublication
· 2026 arXiv
EN
Tidally-locked planets express a range of climate regimes distinct from those found in our solar system. Their atmospheres are often dominated by planetary-wide overturning circulations and super- rotating jets. In this paper we explore the hydrological cycle...
Daniel A. Williams, Geoffrey K. Vallis et al.
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
Saturn's icy moon Enceladus is a prime target in the search for life beyond Earth. Abundant H2 and CH4 in Enceladus's south-polar plume have been shown to be consistent with hydrogenotrophic methanogens feeding on products of long-lived serpentinization. Howev...
Sam Nasreldine, Antonin Affholder et al.
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
Redshift space distortions (RSD) provide a powerful measurement of structure formation in modern cosmology. In this work, we explore the potential of 21cm intensity mapping with the MeerKAT Large Area Synoptic Survey (MeerKLASS) to detect RSD and probe gravity...
Daniel Tassie, Steven Cunnington et al.
#astro-ph.CO
Prépublication
· 2026 arXiv
EN
We apply a two-layer thermophysical model, with water sublimating from below a dust-crust with dynamically varying depth, to simulate the water outgassing rate, dust-ejections, and non-gravitational forces and torques of comet 67P/Churyumov-Gerasimenko. The du...
Nicholas Attree, Yuri Skorov et al.
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
This study aims to determine asteroid rotation periods from sparse, unevenly sampled, multi-observatory photometry using the Lomb-Scargle (L-S) method. The photometric measurements of the asteroids are taken from the circulars of the Minor Planet Center (MPC)....
Kristers Nagainis, Ilgmars Eglitis
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
Space missions such as CoRoT, Kepler, and TESS have transformed asteroseismology and its synergies with exoplanet science. We revisit the nearby K-dwarf HD 219134 to investigate the tension between asteroseismic and interferometric radii, update its fundamenta...
Jérôme Bétrisey, Camilla Pezzotti et al.
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
Aims: To analyse the impact of dynamically formed binaries emerging naturally from various star cluster environments on already established planetary systems. Methods: Numerical simulations replicating the star-forming region NGC 1333 are conducted. We conside...
Erwan Hochart, Simon Portegies Zwart
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
It is commonly thought that fast radio bursts (FRBs) trace star formation, and that they are produced by magnetars. Both hypotheses imply that their sources are hosted primarily (but not exclusively) in galactic disks. Although there is evidence in that direct...
Lachlan Marnoch, Stuart D. Ryder et al.
#astro-ph.GA
Prépublication
· 2026 arXiv
EN
Earth system models (ESMs) have grown tremendously in realism, yet key uncertainties persist in the climate response to greenhouse-gas forcing, particularly due to cloud radiative feedbacks. In addition, their software architecture was not designed for acceler...
Pierre Gentine, Dhruv Balwada et al.
#physics.ao-ph
Prépublication
· 2026 arXiv
EN
Near the ocean surface, tropical cyclone winds change rapidly with height, but direct measurements are limited because aircraft dropsondes provide only sparse and irregular observations. Continuous wind profiles are important for understanding hurricane bounda...
Jian Ma, Yilin Yang et al.
#physics.ao-ph
Prépublication
· 2026 arXiv
EN
Skillful prediction of biomass-burning activity several days in advance is important for air-quality forecasting and aerosol prediction. Two operational constraints motivate this work. First, the GBBEPx satellite fire radiative power (FRP) product used to init...
Li Zhang, Jun Wang et al.
#physics.ao-ph
Prépublication
· 2026 arXiv
EN
The intermittent and variable nature of precipitation makes its accurate estimation over extended domains difficult, yet its spatiotemporal structure suggests that a low-rank representation may be possible. This work represents daily precipitation over the con...
Ryan Solgi, Rohan Shankar et al.
#cs.LG