Mysterious Space Radio Signals

Sciences, Environmental/Climate issues, Academia and Technical interests
Post Reply
User avatar
Black Orchid
Posts: 25685
Joined: Sun Sep 25, 2011 1:10 am

Mysterious Space Radio Signals

Post by Black Orchid » Mon Feb 10, 2020 11:03 pm

A mysterious radio source coming from the outskirts of another galaxy has been sending signals to Earth in steady 16-day cycles, a new study has revealed.

Recording periodic activity from the signals, known as fast radio bursts (FRBs), was a first for scientists working to discover the source.

The discovery was made by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project (CHIME/FRB), which is dedicated to researching FRBs.

The group discovered FRB 180916.J0158+65 had a regular cadence while it was observed using the CHIME radio telescope in British Columbia between September 2018 and October 2019.

Bursts were found to have a total cycle of about 16 days – four days of clusters and then 12 days of silence – which then repeated.
"We conclude that this is the first detected periodicity of any kind in an FRB source," the research explained.

"The discovery of a 16.35-day periodicity in a repeating FRB source is an important clue to the nature of this object."

Observations at both radio and optical wavelengths revealed the source is in a galaxy 500 million light years from Earth – the closest FRB ever detected.

Researchers suggest the periodic nature of the signals could be the source orbiting a compact object, such as a black hole.
More at ... https://www.9news.com.au/technology/mys ... 2c4575a5c3


Hmmm. Interesting.

User avatar
Bobby
Posts: 18218
Joined: Thu Feb 23, 2017 8:09 pm

Re: Mysterious Space Radio Signals

Post by Bobby » Tue Feb 11, 2020 6:19 am

Thanks BO - astronomy is very interesting.

I am following this one:
https://thenewdaily.com.au/news/state/w ... a-outback/

World’s largest radio telescope set for WA
Scientists and engineers are one step closer to building the world’s biggest radio telescope in Western Australia’s rugged, “radio quiet” Murchison region.

The Square Kilometre Array (SKA) is an international, multibillion-dollar project which, when built, will explore the universe in unprecedented detail, listening in on the evolution of the stars and galaxies.

The SKA Infrastructure Australia Consortium, led by the CSIRO, has finished and signed off on the infrastructure designs for the facility, the most significant milestone in the project to date.

The team’s director Antony Schinckel said infrastructure is the backbone of the project and involves everything from supercomputing facilities to roads, water supply and power, everything that is needed to host the instrument at the CSIRO’s Murchison Radio-astronomy Observatory (MRO).

“It is an extremely important part of the base of a telescope,” he said.

“Particularly in a remote site, they cannot exist there without all of the infrastructure.

“You have to remember we are going to a site where there is nothing existing now.”

He said it took the team five years to finish the designs, before they were approved late last year.

User avatar
The4thEstate
Posts: 543
Joined: Fri Apr 26, 2019 4:28 pm

Re: Mysterious Space Radio Signals

Post by The4thEstate » Tue Feb 11, 2020 3:29 pm

Black Orchid wrote:
Mon Feb 10, 2020 11:03 pm
A mysterious radio source coming from the outskirts of another galaxy has been sending signals to Earth in steady 16-day cycles, a new study has revealed.

Recording periodic activity from the signals, known as fast radio bursts (FRBs), was a first for scientists working to discover the source.

The discovery was made by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst Project (CHIME/FRB), which is dedicated to researching FRBs.

The group discovered FRB 180916.J0158+65 had a regular cadence while it was observed using the CHIME radio telescope in British Columbia between September 2018 and October 2019.

Bursts were found to have a total cycle of about 16 days – four days of clusters and then 12 days of silence – which then repeated.
"We conclude that this is the first detected periodicity of any kind in an FRB source," the research explained.

"The discovery of a 16.35-day periodicity in a repeating FRB source is an important clue to the nature of this object."

Observations at both radio and optical wavelengths revealed the source is in a galaxy 500 million light years from Earth – the closest FRB ever detected.

Researchers suggest the periodic nature of the signals could be the source orbiting a compact object, such as a black hole.
More at ... https://www.9news.com.au/technology/mys ... 2c4575a5c3


Hmmm. Interesting.
I'm a radio geek, so this sort of thing fascinates me.

I'm even curious what the radio frequency is (in Megahertz, etc.).

Here's what fast radio bursts sound like:
https://www.independent.co.uk/life-styl ... 19886.html

Post Reply

Who is online

Users browsing this forum: No registered users and 58 guests