Tootfinder

Acoustic transparency in dense granular suspensions
Arnaud Tourin, Yamil Abraham, Marie Palla, Arthur Le Ber, Romain Pierrat, Nicolas Benech, Carlos Negreira, Xiaoping Jia
https://arxiv.org/abs/2510.09486

Acoustic transparency in dense granular suspensions
We demonstrate the existence of a frequency band exhibiting acoustic transparency in 2D and 3D dense granular suspensions, enabling the transmission of a low-frequency ballistic wave excited by a high-frequency broadband ultrasound pulse. This phenomenon is attributed to spatial correlations in the structural disorder of the medium. To support this interpretation, we use an existing model that incorporates such correlations via the structure factor. Its predictions are shown to agree well with …

Volatile-bearing mineral atmospheres of hot rocky exoplanets as probes of interior state and composition
Fabian L. Seidler, Paolo A. Sossi, Dan J. Bower, Brice-Olivier Demory
https://arxiv.org/abs/2509.13610

Volatile-bearing mineral atmospheres of hot rocky exoplanets as probes of interior state and composition
The atmospheres of hot rocky exoplanets (HREs), should they persist, are products of interactions with underlying magma oceans. Spectra collected by the James Webb Space Telescope (JWST) hint at a CO/CO$_2$-rich atmosphere on the HRE 55 Cancri e, indicative of such a process. Here, we aim to identify diagnostic features that can be used to infer the composition and geochemical state of HREs. We construct a coupled atmosphere-interior model that computes the equilibrium gas speciation in the atm…