FRBs

[John101]

 

You may want to google...

FRBs and/or Fast Radio Bursts'

 

"Mysterious repeating radio signals have been detected coming from outside our galaxy"

 

Wonder if others are following this most recent event?

 

At this 'shack, 

I have Audiocity and SpectrumLab running in the back ground.

Remember too ARGO paints a pretty raster.

 

John

[Knighty2112]

Hmmmm.......this ones been kept below the radar. Never heard anything mentioned about them before. Interesting! Thanks for posting.  

[John101]

FRBs and SWLers...

 

Just imagine an antenna like this in the back yard.

 

http://www.independent.co.uk/news/science/fast-radio-bursts-scientists-hear-huge-mysterious-signal-from-deep-in-space-a6909211.html

 

 

http://news.psu.edu/story/386147/2016/01/04/research/mysterious-radio-signals-space-test-einsteins-general-relativity

 

John

 

[andrew s]

It seems that some FRBs have been due to the astronomers having a snack! 

Radio emission escaping from microwave ovens during the magnetron shut-down phase neatly explain all of the observed properties of the peryton signals. Now that the peryton source has been identified, we furthermore demonstrate that the microwaves on site could not have caused FRB 010724. This and other distinct observational differences show that FRBs are excellent candidates for genuine extragalactic transients.

https://api.viglink.com/api/click?

Regards Andrew

[John101]

Thanks Andrew

 

and another interesting read, at apx 800 mHz, down where a ham might peek around with SWL gear.

 

http://arxiv.org/

Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); Cosmology and Nongalactic Astrophysics (astro-ph.CO)

 

Fast Radio Bursts: Searches, Sensitivities & Implications

E. F. Keane, SUPERB Collaboration

http://arxiv.org/find/grp_physics/1/id:+1602.05165/0/1/0/all/0/1

 

John

 

[John101]

WOW!  Confirmed...

http://www.sciencealert.com/confirmed-mysterious-radio-bursts-detected-by-astronomers-really-are-coming-from-outer-space

 

John

[Davey-T]

Read an article about a possible mobile phone app that could turn the whole planet into a giant FRB detector 

Dave

[Dave In Vermont]

Here you go, all:

Extraterrestrial Origin Of Fast Radio Burst Phenomenon Confirmed.pdf

Very well written article Nancy Atkinson & UT!

Enjoy -

Dave

[ronin]

I attended a talk on FRB's, one of the oddest I have been at.

Started out explaining that they could or have only detected sort of single bursts as they did not have a repeating example. Followed within a few minutes of being told how they have detected and found a repeating one. or maybe more then one to study.

Another point made was that they were a like pulsars but that the theory, and maybe something else, said they came from a body a few hundred times bigger (more massive) then a neutron star. Problem being that something that massive would be a black hole. Yet it was distinctly not implied they were to do with a black hole.

One bit I recall was that the person said there were at present more theories about FRB's then there were detected FRB's and maybe even more theories then there were people studing them. In which case some people had more then one theory.

One of those where you came away not exactly sure what you had learnt. Sort of one to file for possible future reference.

[John101]

Storm of Strange Radio Bursts Emerges From Deep Space

Astronomers recently caught 15 blasts of radio waves coming from a mysterious object about three billion light-years away.



A parked bus offers a sense of scale in a view of the Green Bank Telescope, a highly sensitive radio observatory in West Virginia.

 
PHOTOGRAPH BY NRAO/AUI, REUTERS



By Nadia Drake

PUBLISHED SEPTEMBER 1, 2017

Something has breathed new life into a faraway cosmic mystery machine and caused it to repeatedly hurl tremendous amounts of energy into the void.

Scientists with the Breakthrough Listen project made the discovery because, fortunately, they had a pretty good idea where to look. The team had tuned the giant Green Bank Telescope in West Virginia to a spot on the sky where a fast radio burst known as FRB 121102 had previously been singing to the stars.

http://news.nationalgeographic.com/2017/09/radio-bursts-galaxy-space-breakthrough-listen-science/

John

 

[Dave In Vermont]

This just came in yesterday in my email:

Alien Seekers Report 15 more Fast Radio Bursts.pdf

And some extracted graphics - courtesy of Yours' Truly:

 

 

 

 

Food for thought,

Dave

[John101]

Analysis by Gajjar and the Breakthrough Listen team revealed 15 new pulses from FRB 121102. The observations show for the first time that fast radio bursts emit at higher frequencies than previously observed, with the brightest emission occurring at around 7 GHz.

“The extraordinary capabilities of the backend receiver, which is able to record several gigahertz of bandwidth at a time, split into billions of individual channels, enable a new view of the frequency spectrum of FRBs, and should shed additional light on the processes giving rise to FRB emission.” Gajjar said.

“Whether or not fast radio bursts turn out to be signatures of extraterrestrial technology, Breakthrough Listen is helping to push the frontiers of a new and rapidly growing area of our understanding of the universe around us,” Siemion said.



 

[JamesF]

And in a galaxy far, far away, a little green man is still trying to get reliable wifi reception at the end of his garden

(Actually, I think this stuff is quite fascinating.  There was a Horizon programme about FRBs a while back which included the story about the microwave oven interfering with the detectors.)

James

[Dave In Vermont]

I never doubted the 'Little Green Man' had contact with a Terran (Earthling) who knew a few things about these FRB's. But I didn't know one of the sponsors was none-other-than Stephen Hawking himself. Any doubt? Try this:

http://www.telegraph.co.uk/science/2017/09/01/stephen-hawking-mission-find-alien-civilisation-detects-radio/

Fascinating,

Dave - LGM

[John101]

Image credit
David Gestalder

The Roumoules transmitter is the main broadcasting facility for long-wave and medium-wave broadcasting of Radio Monte Carlo near Roumoules, France. The medium-wave towers, shown here, are the most powerful in the world, and are nineteen orders of magnitude (10^ -19) weaker than the signals we're seeing in FRBs.