Tuesday, April 14, 2015

Is ET the source of the mysterious fast radio bursts?

By Paul LaViolette via etheric.com, 11 April 2015

Graph from the New Scientist article

The answer to the above question, in my opinion, is very likely yes.

Over the years radio astronomers have been reporting that they have observed mysterious bursts of broad band radio emission, single pulses of extremely high radio brightness lasting as little as a few milliseconds.  Because they do not repeat astronomers have been unable to get a fix on their location, but the fact that the longer frequency radio waves from the burst lag significantly behind the higher frequency radio waves, they have concluded that they must be coming from very far away, even outside the galaxy.  This phenomenon is called dispersion and it is attributed to the interaction of the radio waves with electrons in the interstellar or intergalactic medium.  According to their estimates the bursts with the greatest dispersion should be coming from a distance of 5.5 billion light years.


The recent development is the finding that the dispersion measure, the amount of delay between the leading and trailing wavelengths of each burst, is quantized in multiples of 187.5!  This has some astronomers wondering whether they are of ETI origin.

Here are some links on this topic:

http://www.newscientist.com/article/mg22630153.600-is-this-et-mystery-of-strange-radio-bursts-from-space.html#.VSnU9UvS-1s

http://arxiv.org/abs/1503.05245

http://www.newscientist.com/article/dn27287-alien-faq-6-questions-about-strange-cosmic-radio-bursts.html#.VSnZHEvS-1s

Interestingly, these fast radio bursts (FRBs) very strongly resemble giant pulses observed sporadically to come from radio pulsars.  Like giant pulses they are broadband radio bursts that are solitary bursts and very brief.  In the case of the Crab Pulsar, they can be as brief as a 2 nanoseconds.  The reason that these FRBs last a few milliseconds is probably because the great dispersion that they undergo.  Also like pulsar bursts they are very intense.  If you read the above news postings, you will hear speculation of these bursts requiring huge amount of power to be produced bordering on the output of an entire star.  This is because they have no idea how they are produced.  Assuming these bursts are produced in the same fashion as the giant pulse from a radio pulsar beacons, their high energy is illusory.  It is due to what is known as relativistic beaming.  In pulsars,  beamed signals would be produced by cosmic rays traveling toward the observer and producing a narrow beam of synchrotron radiation whose luminosity increases according to the 8 γ3 where γ is the Lorentz factor where typically can range from 105 to 106.  So you can see that luminosities can be magnified 1019 fold by this effect.  All that energy is being beamed directly at us.  Why, just chance?  No, it is because They are communicating with us.

Continue to the full article here,
http://etheric.com/is-et-the-source-of-the-mysterious-fast-radio-bursts/

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