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Is life unique to Earth or a common phenomenon in the Solar System and the Universe? To address

this fundamental question, we need to know how the basic requirements for life as we know it such as

liquid water, organic compounds and persistent external energy fluxes promoted the emergence and

complexification of biological systems on early Earth and how they were impacted by planetary and

solar properties. Understanding the conditions that allowed for the emergence of life on early Earth,

and whether other inner planets in our Solar System possibly also supported habitable conditions early

in their histories is a promising way to address these questions. Thus, the knowledge of the

heliospheric environments surrounding the early Venus, Earth and Mars is critical for evaluation of the

basic requirements for life as we know it including liquid water and organic compounds. Here, I will

describe recent observations of young solar-like stars and the Sun as inputs for our 3D MHD models of

the corona, the wind and transient events (flares, coronal mass ejections and solar energetic particle

events) and discuss their impact on atmospheric erosion and chemistry of early Earth.

Friday 8 July 2022 time 14:30 CEST

Join IN PERSON in Aula Grassano (Physics Dept., Tor Vergata

University) or online on the MS Teams App:

https://rebrand.ly/Seminar-Airapetian

Eruptions from Young Solar-like Stars and Impact

of Habitable Environments of Rocky Exoplanets

Chair: A. Balbi Ref: F. Tombesi (francesco.tombesi@roma2.infn.it)

Vladimir Airapetian

NASA - Goddard Space Flight Center

American University, Washington DC

ASTROPHYSICS SEMINAR