11:15 AM - 11:30 AM
[AOS11-09] Radiological Assessment of Martian and Terrestrial Surface during Young Sun
Keywords:Young Sun, Solar Flare, Radiological Condition
Here, we propose a reasonable radiological assssessment of the possible exposure intensity in SEP from a young Sun, by evaluating the possible magnitude and frequency of early solar flares by using possible star spot area, derived from their rotational period. We evaluated annual and maximum flare energy in different cases of solar spot areas for 3 %, 5 % ,and 10 % of solar surfaces. The maximum dose at the Martian TOA reaches 5.86 k Gy (265 Sv) when the solar spot area reaches 10 % of the solar surface. Such higher radiation dose may have influenced significantly atmospheric composition of Early Mars and Young Earth.