Evolution of atmospheric escape in close-in giant planets and their associated Ly$\alpha$ and H$\alpha$ transit predictions

@article{Allan2019EvolutionOA,
title={Evolution of atmospheric escape in close-in giant planets and their associated Ly\$\alpha\$ and H\$\alpha\$ transit predictions},
author={Andrew Allan and A. Vidotto},
journal={arXiv: Earth and Planetary Astrophysics},
year={2019}
}
• Published 2019
• Physics
• arXiv: Earth and Planetary Astrophysics
• Strong atmospheric escape has been detected in several close-in exoplanets. As these planets are mostly made of hydrogen, observations in hydrogen lines, such as Ly-alpha and H-alpha lines, are powerful diagnostics of escape. Here, we simulate the evolution of atmospheric escape of close-in giant planets and calculate their associated Ly-alpha and H-alpha transits. For that, we use a 1D hydrodynamic escape model to compute the physical properties of the escaping atmosphere and a ray tracing… CONTINUE READING

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