If Fast Radio Bursts are beamed solar sail propulsion then they are powering one million ton spaceships for up to ten thousand Kardashev 1+ alien civilizations
by noreply@blogger.com (brian wang) from NextBigFuture.com on (#2FWXC)
A new study by Manasvi Lingam and Avi Loeb at Harvard says that fast radio bursts (FRBs) could come from extraterrestrial radio beams being used as beacons or to power alien light sails.
The source of FRBs, which are milliseconds-long but incredibly bright pulses of radio waves, have intrigued and mystified astronomers for years - and this isn't the first time aliens have been suggested.
If Fast radio bursts are aliens powering high speed solar sails then
IF each civilization broadcasts only a single beam, this allows us to place a bound on the number of technologically sophisticated civilizations. Using this value in conjunction with the fact that there area1/410 billion habitable Earth-size planets in our Galaxy leads us to the conclusion that there are less than 10,000 FRB-producing civilizations in a galaxy similar to our own. These civilizations must belong to the Kardashev I class at a minimum.
There may be a large number of interplanetary spacecrafts operating at extragalactic distances that are too faint to be detected. In contrast, such spacecrafts (and beams) within our Galaxy are potentially detectable.
The analysis of fast radio bursts gave rise to many interesting consequences. It was shown that the payload of the light
sail and the beam's characteristic period should be approximately one million tons and beaming lasts about 7 days respectively. Moreover, under certain simplifying assumptions,they derived an upper bound on the total number of intelligent civilizations in a galaxy (akin to the Milky Way).
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The source of FRBs, which are milliseconds-long but incredibly bright pulses of radio waves, have intrigued and mystified astronomers for years - and this isn't the first time aliens have been suggested.
If Fast radio bursts are aliens powering high speed solar sails then
IF each civilization broadcasts only a single beam, this allows us to place a bound on the number of technologically sophisticated civilizations. Using this value in conjunction with the fact that there area1/410 billion habitable Earth-size planets in our Galaxy leads us to the conclusion that there are less than 10,000 FRB-producing civilizations in a galaxy similar to our own. These civilizations must belong to the Kardashev I class at a minimum.
There may be a large number of interplanetary spacecrafts operating at extragalactic distances that are too faint to be detected. In contrast, such spacecrafts (and beams) within our Galaxy are potentially detectable.
The analysis of fast radio bursts gave rise to many interesting consequences. It was shown that the payload of the light
sail and the beam's characteristic period should be approximately one million tons and beaming lasts about 7 days respectively. Moreover, under certain simplifying assumptions,they derived an upper bound on the total number of intelligent civilizations in a galaxy (akin to the Milky Way).
Read more