271 citations · 3.4k across the 66 of their papers we have counts for
7 papers · 1 filter
Revisiting the space weather environment of Proxima Centauri b
Cecilia Garraffo, Julián D. Alvarado-Gómez, Ofer Cohen +1
Close-in planets orbiting around low-mass stars are exposed to intense energetic photon and particle radiation and harsh space weather. We have modeled such conditions for Proxima…
Signatures of Strong Magnetization and Metal-Poor Atmosphere for a Neptune-Size Exoplanet
Lotfi Ben-Jaffel, Gilda E. Ballester, Antonio García Muñoz +10
The magnetosphere of an exoplanet has yet to be unambiguously detected. Investigations of star-planet interaction and neutral atomic hydrogen absorption during transit to detect ma…
Comparing the Performance of a Solar Wind model from the Sun to 1 AU using Real and Synthetic Magnetograms
Kalpa Henadhira Arachchige, Ofer Cohen, Andrés Muñoz Jaramillo +1
The input of the Solar wind models plays a significant role in accurate solar wind predictions at 1 AU. This work introduces a synthetic magnetogram produced from a dynamo model as…
Exoplanet Radio Transits as a Probe for Exoplanetary Magnetic Fields -- Time-dependent MHD Simulations
Soumitra Hazra, Ofer Cohen, Igor V. Sokolov
We perform a series of time dependent Magnetohydrodynamic simulations of the HD 189733 star-planet system in order to predict radio transit modulations due to the interaction betwe…
Stellar Energetic Particle Transport in the Turbulent and CME-disrupted Stellar Wind of AU~Microscopii
F. Fraschetti, J. D. Alvarado-Gómez, J. J. Drake +2
Energetic particles emitted by active stars are likely to propagate in astrospheric magnetized plasma turbulent and disrupted by the prior passage of energetic Coronal Mass Ejectio…
Space Weather-driven Variations in Ly Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b
O. Cohen, J. D. Alvarado-Gomez, J. J. Drake +3
We simulate the space environment around AU Microscopii b and the interaction between the magnetized stellar wind with a planetary atmospheric outflow for ambient stellar wind cond…