Galactic cosmic rays in the magnetospheres of terrestrial exoplanets

Details Galactic cosmic rays in the magnetospheres of terrestrial exoplanets Galactic cosmic rays in the magnetospheres of terrestrial exoplanets

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..750g&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.750

Mathematics

Logic

Scientific paper

Theoretical arguments indicate that close-in terrestial exoplanets may have weak magnetic fields, especially in the case of planets more massive than Earth ("super- Earths"). Weak planetary magnetic fields, however, result in high particle fluxes to the top of the planetary atmosphere. For cosmic ray protons with particle energies of 64 MeV E 500 GeV, we numerically analyze the propagation of the particles through planetary magnetospheres. We evaluate the planetary magnetic shielding efficiency as a function of the particle energy and of the planetary magnetic field strength. Implications of increased particle fluxes are discussed, including the generation of secondary muons, the modification of atmospheric chemistry, destruction of atmospheric biomarker molecules, and potential biological implications.

Affiliated with

Also associated with

No associations

Rating

Galactic cosmic rays in the magnetospheres of terrestrial exoplanets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galactic cosmic rays in the magnetospheres of terrestrial exoplanets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galactic cosmic rays in the magnetospheres of terrestrial exoplanets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1480223