Possibility of life origin on radioactive source of energy after our supernova explosion

Details Possibility of life origin on radioactive source of energy after our supernova explosion Possibility of life origin on radioactive source of energy after our supernova explosion

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3755..234b&link_type=abstract

Proc. SPIE Vol. 3755, p. 234-241, Instruments, Methods, and Missions for Astrobiology II, Richard B. Hoover; Ed.

Biology

Scientific paper

I suggest an idea of primitive life creation on protocomets with sizes 100 m to 100 km at very early stages (0.1 to 100 Myr) after our Supernova explosion 4.56 Gyr before present. Dust condensation in supernova remnants develops in conditions of decreasing gas temperature. After it crosses the level of 273 K, initial comets become rich in water and organic compounds. Their surface temperature is governed by equilibrium between heat production by radioactivity and thermal radiation from the surface. (The sun began to contribute to the thermal balance only at 50 - 100 Myr). Main energy contribution at this stage is produced by the following isotopes (decay time in Myr in brackets): 41Ca(0.14), 60Fe(0.30), 26Al(0.72), 53Mn(3.70).

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