9 papers
The dynamical origin of the magnetic field distributions in compressible turbulence
Evangelia Ntormousi, Fabio Del Sordo
Magnetohydrodynamical (MHD) simulations of isothermal compressible turbulence report that the density distribution is well described by a lognormal with a variance proportional to…
Searching for radio emission from stellar wind-magnetosphere interaction or co-rotation breakdown in brown dwarfs
Rebeca Pirvu Malanda, Simranpreet Kaur, Daniele Viganò +11
With the improvements in radio interferometry sensitivity, the quest for coherent radio emission from exoplanets and ultra-cool dwarfs, which is indicative of their magnetic fields…
RedDots: Multiplanet system around M dwarf GJ 887 in the solar neighborhood
C. Hartogh, S. V. Jeffers, S. Dreizler +7
GJ 887 is a bright M dwarf in the solar neighborhood with two currently reported nontransiting exoplanets with periods of and along with an addition…
The role of Ohmic dissipation of internal currents on Hot Jupiter radii
Taner Akgün, Clà udia Soriano-Guerrero, Albert Elias-López +3
The inflated radii observed in hundreds of Hot Jupiters represent a long-standing open issue. The observed correlation between radii and irradiation strength, and the occasional ex…
First detection of variable radio emission originating from the infant planetary system V1298 Tau
M. Damasso, O. Morata, S. Kaur +13
V1298 Tau is a very young and magnetically active star which hosts a benchmark multi-planetary system to study planet formation and evolutionary history at the earliest stages. We…
Vorticity and magnetic dynamo from subsonic expansion waves II: Dependence on magnetic Prandtl number, forcing scale, cooling time
Albert Elias-López, Fabio del Sordo, Daniele Viganò
The amplification of astrophysical magnetic fields takes place via dynamo instability in turbulent environments. The presence of vorticity is crucial for the dynamo to happen. Howe…