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

Alexei V. Byalko

doi:10.1117/12.375080

30 December 1999 Possibility of life origin on radioactive source of energy after our supernova explosion

Alexei V. Byalko

Proceedings Volume 3755, Instruments, Methods, and Missions for Astrobiology II; (1999) https://doi.org/10.1117/12.375080
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

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).

Citation Download Citation

Alexei V. Byalko "Possibility of life origin on radioactive source of energy after our supernova explosion", Proc. SPIE 3755, Instruments, Methods, and Missions for Astrobiology II, (30 December 1999); https://doi.org/10.1117/12.375080

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