Astrobiology in the Environments of Main-Sequence Stars: Effects of Photospheric Radiation

Details Astrobiology in the Environments of Main-Sequence Stars: Effects of Photospheric Radiation Astrobiology in the Environments of Main-Sequence Stars: Effects of Photospheric Radiation

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..420..253c&link_type=abstract

Bioastronomy 2007: Molecules, Microbes and Extraterrestrial Life ASP Conference Series, Vol. 420, proceedings of a workshop held

Astronomy and Astrophysics

Astronomy

Scientific paper

We explore if carbon-based macromolecules (such as DNA) in the environments of stars other than the Sun are able to survive the effects of photospheric stellar radiation, such as UV-C. Therefore, we focus on main-sequence stars of spectral types F, G, K, and M. Emphasis is placed on investigating the radiative environment in the stellar habitable zones. Stellar habitable zones are relevant to astrobiology because they constitute circumstellar regions in which a planet of suitable size can maintain surface temperatures for water to exist in fluid form, thus increasing the likelihood of Earth-type life.

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