William Bacon's Homepages/SETI Fast Radio Bursts



Locations of Site Visitors

Comments?????
Email the Webmaster!!!!!



This page was last updated on May 29, 2021


William Bacon's SETI Fast Radio Bursts Page Index


INTRODUCTION

Current status of the deep space network

This artist’s impression of the cosmic web, the filamentary structure that fills the entire Universe, being illuminated by FRBs. Credit: M. Weiss/CfA


Click here to return to top of page



Thanks to Australia's Commonwealth Scientific Indutrial Research Orginazition (CSIRO)


Information on Thanks to Australia's Commonwealth Scientific Indutrial Research Orginazition (CSIRO)




EXTRATERRESTRIAL ORIGIN OF FAST RADIO BURST (FRB) PHENOMENON CONFIRMED



CSIRO's (commonwealth Scientific Industrial Research Organization) Parkes radio telescope in Australia spotted the first signs of a FRB (Fast Radio Burst) Follow-up observations identified its location and host galaxy, the first determination for an FRB. Credit: CSIRO


SETI@home: New SETI Perspectives article Richard M Lawn has posted another interesting article to the SETI Perspectives forum. This one is about the mysteries of Fast Radio Burst (aka FRBs) , possibly some of the most distant explosions ever seen.





Astronomers Observe Cosmic Fast Radio Burst in Real Time, Yet Mystery of Their Origin Deepense


A schematic illustration of the Parkes radio telescope receiving the polarised signal from the distant fast radio burst FRB 140514, the first one to be discovered by astronomers in real-time. Image Credit: Swinburne Astronomy Productions




Artist's impression shows three bright red flashes depicting fast radio bursts far beyond the Milky Way, appearing in the constellations Puppis and Hydra, above the Mongolo radio telescope in Australia.
Credit: James Josephides/Mike Dalley.




Gemini composite image of the field around FRB 121102, the only repeating FRB discovered so far.
Credit: Gemini Observatory/AURA/NSF/NRC.



Here is the pdf on The BURST project will perform deep FRB searches with MOSTS's wide field-of-view and nearly constant single pulse searches of the radio sky.



OCTOBER 17, 2018 BY MATT WILLIAMS
Australian astronomers have been able to double the number of mysterious fast radio bursts
discovered so far



Fast Radio Bursts (FRBs) have become a major focus of research in the past decade. In radio astronomy, this phenomenon refers to transient radio pulses coming from distant cosmological sources, which typically last only a few milliseconds on average. Since the first event was detected in 2007 (the “Lorimer Burst”), thirty four FRBs have been observed, but scientists are still not sure what causes them.

Artist’s impression of CSIRO’s Australian SKA Pathfinder (ASKAP) radio telescope observing ‘fast radio bursts’ in ‘fly’s eye mode’. Credit: OzGrav, Swinburne University of Technology.


A Fast Radio Burst has Finally Been Traced Back to its Source:
the Outskirts of a Galaxy 4 Billion Light-Years Away



Fast-Radio Bursts (FRBs) are one of the most puzzling phenomena facing astronomers today. Essentially, FRBs are brief radio emissions from distant astronomical sources whose cause remains unknown. In some cases, FRBs that have been detected that have been repeating, but most have been one-off events. And while repeating sources have been tracked back to their point of origin, no single events have ever been localized.

Bannister and his colleagues found the FRB using the Australian Square Kilometre Array Pathfinder (ASKAP), a network of 36 radio telescopes at CSIRO’s Murchison Radio-astronomy Observatory in Western Australia. They detected the burst on Sept. 24, 2018, which explains its name — FRB 180924. (The repeater FRB 121102 was first spotted in 2012, as you may now have surmised.)

CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope, located at CSIRO’s Murchison Radio-astronomy Observatory in Western Australia. (Image credit: CSIRO/Dragonfly Media)

The models will get stronger and stronger as more and more FRBs are pinpointed using the methods pioneered by Bannister and his team. And there are other exciting implications of the find as well.


The models will get stronger and stronger as more and more FRBs are pinpointed using the methods pioneered by Bannister and his team. And there are other exciting implications of the find as well.



What Are Fast Radio Bursts? A Big Mystery in Astronomy






Here's a big mystery in astronomy: fast radio bursts. Brief shrieks of radio waves coming from space. What are they? Where do they come from? Astronomers have no idea. Sponsored by the .space domain name. Go to and use the code "GUIDETOSPACE" to get a domain for $2.99. Sign up to my weekly email newsletter: Support us at:Support us at: : More stories at Follow us on Twitter: @universetoday Like us on Facebook: Google+ - Instagram - Team: Fraser Cain - @fcain / frasercain@gmail.com /Karla Thompson - @karlaii Chad Weber - Chloe Cain - Instagram: @chloegwen2001

FRB 150807

“This FRB, like others detected, is thought to originate from outside of Earth’s own Milky Way galaxy,” says Shannon, “which means their signal has travelled over many hundreds of millions of light years, through a medium that – while invisible to our eyes – can be turbulent and affected by magnetic fields. It is amazing how these very few milliseconds of data can tell how weak the magnetic field is along the travelled path and how the medium is as turbulent as predicted.”

mage: The radio pulse FRB 150807. The colour shows the frequency of the waves, which is like the colour of light. The brightness varies with frequency due to a process termed “scintillation”, which is caused by the twinkling of the burst in the cosmic web. This scintillation is the fingerprint of turbulence in the cosmic web and tells us that web is very placid. Credit: Dr Vikram Ravi/Caltech and Dr Ryan Shannon/ICRAR-Curtin/CSIRO.

Using FRBs as cosmological probes has been made difficult by the uncertainty about their origins, which is why FRB 150807 is so helpful — we can reconstruct its path. The archival images the team is using show three stars and six galaxies that are possible sites (see image below). The brightest galaxy is between 1 and 2 gigaparsecs away — roughly between 3.3 and 6.6 billion light years. The other galaxies are fainter than this object by factors of 6 and more, and all are thought to be more than 500 Mpc (1.6 billion light years) distant. This assumes, of course, that we can associate the burst with a star or a galaxy.

Image: The location of the FRB 150807. The yellow circle shows the typical location of an FRB. There are thousands of stars and galaxies in this direction. Because the burst was very bright researchers were able to locate it to a small region near the edge of that circle, shown as the pink banana-shaped region in the inset. In this region there are only 6 detected galaxies. The position of the most likely host galaxy, VHS7, is highlighted on the plot. Credit: Dr Vikram Ravi/Caltech and Dr Ryan Shannon/ICRAR-Curtin/CSIRO.

P>

Mysterious, Ancient Radio Signals Keep Pelting Earth. Astronomers Designed an AI to Hunt Them Down.

An animation shows the random appearance of fast radio bursts (FRBs) across the sky. Astronomers have discovered about 85 since 2007, and pinpointed two of them. (Image: © NRAO Outreach/T. Jarrett (IPAC/Caltech); B. Saxton, NRAO/AUI/NSF))


Click here to return to top of page

A Repeating Fast Radio Burst Has Been Found. It Flares for 4 Days and then Remains Silent for 12 Days

Five hundred million light-years from Earth, there is a deeply unusual object. It is radio silent for 12 days, then erupts in bright radio bursts. These fast radio bursts occur randomly over four days, then the object goes silent for another 12 days. Astronomers have observed this object for 500 days, and the pattern always repeats, like clockwork. We still aren’t sure what the object is.

FRBs could be caused by magnetic bursts of a neutron star. Credit: NASA’s Goddard Space Flight Center/S. Wiessinger

The number of bursts follows a highly regular pattern. Credit: Amiri, M., et al


Click here to return to top of page


Some Observatories observing Fast Radio Bursts


The Gemini South Telescope in Chile. Credit: Gemini Observatory/AURA/Manuel Paredes


WEBSITE OF THE GEMINI OBSERVORTORY




WEBSITE OF THE GEMINI OBSERVORTORY



The Very Large Telescope



The four Unit Telescopes that make up the ESO’s Very Large Telescope, at the Paranal Observatory Image: By ESO/H.H.Heyer/Wikimedia Commons


The Square Kilometer Array Pathfinder Radio Telescope Article on Fast Radio Bursts





The Square Kilometer Array Pathfinder Radio Telescope Website





Click here to return to top of this page



Origin of some FRBs

Hubble Has Tracked Down the Source of 5 Different Fast Radio Bursts

In a new survey, astronomers using the Hubble Space Telescope have managed to pinpoint the location of several Fast Radio Bursts (FRBs). FRBs are powerful jets of energy that, until recently, had mysterious, unknown origins. The research team, which includes University of California Santa Cruz’ Alexandra Manning and Sunil Simha, as well as Northwestern University’s Wen-fai Fong, performed a survey of eight FRBs, from which they were able to determine that five of them originated from a spiral arm in their host galaxies.

Hubble images showing two galaxies from which FRB’s originated (marked by dotted ovals). On the right, the images have been enhanced to show the spiral arms of the galaxies. Image Credit: NASA, ESA, Alexandra Mannings (UC Santa Cruz), Wen-fai Fong (Northwestern) Image Processing: Alyssa Pagan (STScI)

Hubble Tracks Origins Of Energy Blasts

Fast radio bursts, or FRBs, are extraordinary events that generate as much energy in a thousandth of a second as the Sun does in an entire year! Astronomers using NASA’s Hubble Space Telescope have traced the locations of five brief, powerful FRBs, which are near or on their host galaxies' spiral arms. The research helped rule out some of the possible stellar objects originally thought to cause these brilliant flares. For more information: Video credit: NASA's Goddard Space Flight Center Paul Morris: Lead Producer Andrea Gianopoulos: Science Writer Cassandra Morris: Narrator Additional Visualizations: Sunrise over the Pacific: Artbeats Animation of Magnetar: Scott Wiessinger FRB Locations Animation: Scott Wiessinger and Chris Smith Gamma Ray Burst Illustration: Michael Starobin Neutron Star Merger: Michael Starobin Magnetar Flyby Animation: Chris Smith Magnetar Flare Sequence: Chris Smith Music: "Deep Caverns" by JC Lemay [SACEM] via Koka Media [SACEM], Universal Publishing Production Music France [SACEM], and Universal Production Music This video can be shared and downloaded at While the video in its entirety can be shared without permission, individual imagery provided by Artbeats is obtained through permission and may not be excised or remixed in other products. Specific details on stock footage may be found here For more information on NASA’s media guidelines, visit See more Hubble videos on YouTube: Follow NASA's Hubble Space Telescope: · Facebook: · Twitter: · Instagram: · Flickr: --- If you liked this video, subscribe to the NASA Goddard YouTube channel: Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: Follow NASA’s Goddard Space Flight Center · Instagram · Twitter NASA GODDARD · Twitter NASA GODDARD PICTURES · Facebook: · Flickr


Click here to return to top of page



Articles on fast radio burts



From Universetoday.com

A Repeating Fast Radio Burst Has Been Found. It Flares for 4 Days and then Remains Silent for 12 Days

Are Fast Radio Bursts Evidence Of Alien Activity?


Hubble Has Tracked Down the Source of 5 Different Fast Radio Bursts

https://www.universetoday.com/151268/hubble-has-tracked-down-the-source-of-5-different-fast-radio-bursts/#more-151268">

Universe today's CATEGORY: ASTRONOMY

Universe today's TAG: FAST RADIO BURSTS (FRBS)

Universe today's TAG: HUBBLE SPACE TELESCOPE

Universe today's TAG: MAGNETARS

Universe today's TAG: NASA GODDARD

Universe today's TAG: NORTHWESTERN

Universe today's TAG: SPACE TELESCOPE SCIENCE INSTITUTE (STSCI)

Universe today's TAG: UC SANTA CRUZ


Articles




The magnetic field and turbulence of the cosmic web measured using a brilliant fast radio burst

Information on The magnetic field and turbulence of the cosmic web measured using a brilliant fast radio burst

Hubble Tracks Down Fast Radio Bursts to Galaxies' Spiral Arms


information on Hubble Tracks Down Fast Radio Bursts to Galaxies' Spiral Arms

PDFs

Periodic activity from a fast radio burst source

Activity of frbs (pdf)


Click here to return to top of page