116 citations · 602 across the 23 of their papers we have counts for
8 papers · 1 filter
Atmospheric escape from exoplanets: recent observations and theoretical models
Gopal Hazra
The review aims to give an overview of atmospheric escape processes from exoplanets. I briefly discuss the physics of various escape processes responsible for atmospheric escape ac…
Atmospheric mass loss and stellar wind effects in young and old systems II: Is TOI-942 the past of TOI-421 system?
Daria Kubyshkina, Aline A. Vidotto, Carolina Villarreal D'Angelo +3
The two planetary systems TOI-942 and TOI-421 share many similar characteristics, apart from their ages (50~Myr and 9~Gyr). Each of the stars hosts two sub-Neptune-like planets at…
Atmospheric mass loss and stellar wind effects in young and old systems I: comparative 3D study of TOI-942 and TOI-421 systems
Daria Kubyshkina, Aline A. Vidotto, Carolina Villarreal D'Angelo +3
At young ages, when radiation from the host star is high, and the planet is hot and inflated after formation, planetary atmospheric mass loss can be extremely strong compared to ol…
The impact of coronal mass ejections and flares on the atmosphere of the hot Jupiter HD189733b
Gopal Hazra, Aline A. Vidotto, Stephen Carolan +2
High-energy stellar irradiation can photoevaporate planetary atmospheres, which can be observed in spectroscopic transits of hydrogen lines. For the exoplanet HD189733b, multiple o…
The Effects of Magnetic Fields on Observational Signatures of Atmospheric Escape in Exoplanets: Double Tail Structures
S. Carolan, A. A. Vidotto, G. Hazra +2
Using 3D radiative MHD simulations and Lyman- transit calculations, we investigate the effect of magnetic fields on the observational signatures of atmospheric escape in exoplan…
GJ 436b and the stellar wind interaction: simulations constraints using Ly and H transits
C. Villarreal D'Angelo, A. A. Vidotto, A. Esquivel +2
The GJ 436 planetary system is an extraordinary system. The Neptune-size planet that orbits the M3 dwarf revealed in the Ly line an extended neutral hydrogen atmosphere. This ma…
Effects of the stellar wind on the Ly-alpha transit of close-in planets
S. Carolan, A. A. Vidotto, C. Villarreal D'Angelo +1
We use 3D hydrodynamics simulations followed by synthetic line profile calculations to examine the effect increasing the strength of the stellar wind has on observed Ly- transit…
The dichotomy of atmospheric escape in AU Mic b
S. Carolan, A. A. Vidotto, P. Plavchan +2
Here, we study the dichotomy of the escaping atmosphere of the newly discovered close-in exoplanet AU Mic b. On one hand, the high EUV stellar flux is expected to cause a strong at…