Recurrent supernovae as time markers in interstellar communication
Abstract
The speculation that a supernova may re-explode once is examined and found to be plausible. According to theoretical predictions, the event is accompanied by an energy release of approximately 10 to the 45th J, and it has a similar absolute photovisual magnitude to a Type II supernova if approximately 1% of the total energy is converted into visible light. Though less prominent than a Type I supernova, it should still be easily observed without delay. Therefore, if it does occur, its use as a time marker in interstellar communication is practical. The geometry and the feasibility of an answering and calling strategy based on a recurrent supernova are considered.
- Publication:
-
Journal of the British Interplanetary Society
- Pub Date:
- November 1981
- Bibcode:
- 1981JBIS...34..491T
- Keywords:
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- Energy Transfer;
- Extraterrestrial Intelligence;
- Interstellar Communication;
- Supernovae;
- Time Lag;
- Energy Conversion;
- Signal Transmission;
- Stellar Evolution;
- Time Measurement;
- Space Sciences (General)