Tootfinder

A circularly polarized low-frequency radio burst from the exoplanetary system HD 189733
X. Zhang, P. Zarka, J. N. Girard, C. Tasse, A. Loh, E. Mauduit, F. G. Mertens, E. Bonnassieux, C. K. Louis, J-M. Grie{\ss}meier, J. D. Turner, L. Lamy, A. Strugarek, S. Corbel, B. Cecconi, O. Konovalenko, V. Zakharenko, O. Ulyanov, P. Tokarsky, M. Tagger
https://

A circularly polarized low-frequency radio burst from the exoplanetary system HD 189733
We aim to detect low-frequency radio emission from exoplanetary systems, which can provide insights into planetary magnetic fields, star-planet interactions, stellar activity, and exo-space weather. The HD 189733 system, hosting a well-studied hot Jupiter, is a prime target for such searches. We conducted NenuFAR imaging observations in the 15-62 MHz range, in order to cover the entire orbital phase of HD 189733 b. Dynamic spectra were generated for the target and other sources in the field, fo…

Active Gaussian Network Model: a non-equilibrium description of protein fluctuations and allosteric behavior
Giulio Costantini, Lorenzo Caprini, Umberto Marini Bettolo Marconi, Fabio Cecconi
https://arxiv.org/abs/2505.24855

Active Gaussian Network Model: a non-equilibrium description of protein fluctuations and allosteric behavior
Understanding the link between structure and function in proteins is fundamental in molecular biology and proteomics. A central question in this context is whether allostery - where the binding of a molecule at one site affects the activity of a distant site - emerges as a further manifestation of the intricate interplay between structure, function, and intrinsic dynamics. This study explores how allosteric regulation is modified when intrinsic protein dynamics operate under out-of-equilibrium …