UV Habitable Zones Further Constrain Possible Life

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UV Habitable Zones Further Constrain Possible Life

Post by PlutonianEmpire on 1st February 2017, 12:17 am


Besides the presence of liquid water, there are other things life may need to persist. For life as we know it, one important element is moderate UV radiation: if a planet receives too little UV flux, many biological compounds canít be synthesized. If it receives too much, however, then terrestrial biological systems (e.g. DNA) can be damaged.

To determine the most likely place to find persistent life, we should therefore look for the region where a starís traditional habitable zone, within which liquid water is possible, overlaps with its UV habitable zone, within which the UV flux is at the right level to support life.

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