At present there is no strong consensus on whether a global planetary magnetic field shields a planet's atmosphere from being stripped away or modified through interactions with the Sun and solar wind. This question is increasingly important in an era when terrestrial exoplanets are being discovered in the Habitable Zones of stars more active than our Sun. This session will focus on recent research pertaining to the influence of planetary (intrinsic) magnetic fields on atmospheres, including ion outflow and escape, neutral escape processes, atmospheric chemistry, and charged particle radiation in atmospheres. We invite contributions from modelers, theoreticians, and observers studying solar system planets (including Earth), and exoplanets. Contributions ranging from big picture ideas to detailed space physics and aeronomy are welcome.

• AAS: American Astronomical Society -