Basic Solar Physics Seminars - Solar Irradiance and upper planetary atmospheres

Speaker: Gaƫl Cessateur

Meridian room of ROB


Abstract:

The solar UV radiation is responsible for the photo-ionization and photo-dissociation processes within planetary and cometary atmospheres. In the framework of planetary space weather, there is nowadays a real need for monitoring the solar UV for a various range of timescales.

After a quick review how we can retrieve the solar UV irradiance from a theoretical point of view, I will present different models of photo-excitation in the case of moons and comets, for different solar activities. Atmospheric emissions are indeed a signature of the solar UV impact, and are interesting tools for space weather.

Date: 

Friday, May 18, 2018 - 10:30 to 11:30
 

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