Date: 15/08/2019 10:50:10
From: Tau.Neutrino
ID: 1423027
Subject: 8 New Repeating Signals From Deep Space

Astronomers Have Detected a Whopping 8 New Repeating Signals From Deep Space
https://www.sciencealert.com/astronomers-have-bagged-a-jaw-dropping-haul-of-eight-new-repeating-fast-radio-bursts

At the start of 2019, just one of these mysterious signals, FRB 121102, was known to flash repeatedly. In January, scientists reported a second repeating one (FRB 180814).

This new paper – available on preprint server arXiv, and submitted to The Astrophysical Journal Letters – describes eight new repeating signals detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope.

more…

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Date: 15/08/2019 11:35:03
From: Tau.Neutrino
ID: 1423041
Subject: re: 8 New Repeating Signals From Deep Space

They happen, they are powerful.

They repeat

They have a downward shift in frequency with each repeating signal.

Could this be layers of a complex star collapsing downwards to another layer that then collapses ?

Black holes collapsing down further ?

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Date: 15/08/2019 11:41:55
From: Tau.Neutrino
ID: 1423045
Subject: re: 8 New Repeating Signals From Deep Space

Tau.Neutrino said:


They happen, they are powerful.

They repeat

They have a downward shift in frequency with each repeating signal.

Could this be layers of a complex star collapsing downwards to another layer that then collapses ?

Black holes collapsing down further ?

another clue

The polarisation of the signals (how twisted the signal is) is informative, too. If the signal is really twisted up, it means it came from an extreme magnetic environment, such as can be found around a black hole or neutron star. This is what the signal from FRB 121102 was like.

But the team was able to measure the polarisation of one of the new signals, FRB 180916, and it was really low. This tells us that not all repeating FRBs come from extreme environments.

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Date: 15/08/2019 14:47:23
From: Tau.Neutrino
ID: 1423165
Subject: re: 8 New Repeating Signals From Deep Space

Magnetar or Neutron star collapsing layers?

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Date: 15/08/2019 14:53:45
From: Tau.Neutrino
ID: 1423168
Subject: re: 8 New Repeating Signals From Deep Space

>>>They have a downward shift in frequency with each repeating signal.

How would collapsing layers of different densities sound like?

Does the shift in frequency determine the period of collapse? (if it is a collapse)

Or is it something different?

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Date: 15/08/2019 22:31:37
From: mollwollfumble
ID: 1423459
Subject: re: 8 New Repeating Signals From Deep Space

Tau.Neutrino said:


They happen, they are powerful.

They repeat

They have a downward shift in frequency with each repeating signal.

Could this be layers of a complex star collapsing downwards to another layer that then collapses ?

Black holes collapsing down further ?

Not alien communications? A downward frequency shift would make it easy to distinguish from natural sources. We even use a downward frequency shift in most syllables of the English language, consonants have higher frequencies than vowels.

Just thinking out loud.

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