Astronomers detect signal from the dawn of the universe.

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Grant (SSSF)
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Message 1921802 - Posted: 1 Mar 2018, 2:57:03 UTC
Last modified: 1 Mar 2018, 2:57:42 UTC

A tiny signal, dating back to the birth of the first stars in our universe, has been detected by astronomers for the first time.
They have picked up a radio signature produced just 180 million years after the Big Bang using a simple antenna in the West Australian outback.

The ground breaking discovery, reported today in the journal Nature, sheds light on a period of time known as the "cosmic dawn", when radiation from the first stars started to alter the primordial gas soup surrounding them.
It could also completely revolutionise our understanding about dark matter, the invisible structure that makes up the bulk of our universe today.
"The signal confirms our expectations for when stars show up in the universe," said the study's lead author Judd Bowman of Arizona State University.
Grant
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Message 1921808 - Posted: 1 Mar 2018, 3:17:58 UTC - in response to Message 1921802.  

Thanks for posting Grant, very interesting reading..
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Message 1921933 - Posted: 1 Mar 2018, 18:34:35 UTC - in response to Message 1921808.  
Last modified: 1 Mar 2018, 19:03:39 UTC

If I go the "Nature" online article I cannot read it without paying. But if I go to theregister.co.uk and click on the post related to this subject and then click on the article, I can read it through Springer Verlag SharedIt.
Tullio
This also on Le Scienze, Italian edition of Scientific American. It looks like I cannot read "Nature" directly but I have to go to another site,which has a link to "Nature".
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Message 1921940 - Posted: 1 Mar 2018, 19:05:53 UTC - in response to Message 1921933.  
Last modified: 1 Mar 2018, 19:06:36 UTC

If I go the "Nature" online article I cannot read it without paying. But if I go to theregister.co.uk and click on the post related to this subject and then click on the article, I can read it through Springer Verlag SharedIt.
Tullio

Maybe Nature have something like a 10 articles a month limit.
I can read this Nature article published today without paying.
https://www.nature.com/articles/d41586-018-02620-y
And this.
Astronomers detect light from the Universe’s first stars, from 28 february 2018
https://www.nature.com/articles/d41586-018-02616-8
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Message 1921944 - Posted: 1 Mar 2018, 19:29:27 UTC - in response to Message 1921940.  

Yes,but they are not the articles published by scientists with full test and images.
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Message 1922164 - Posted: 2 Mar 2018, 18:33:52 UTC

A couple of guys with a radio telescope no bigger than a table have discovered one of the earliest stars, with results that can change cosmology but also physics. There is a trend in elementary particle physics to forget about bigger accelerators and go to tabletop experiments which cost much less and give impressive results. So the"spiral of high energies" described by Angelo Baracca and Silvio Bergia in a book by that name in the Seventies would finally be broken.
Tullio
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Message 1922281 - Posted: 3 Mar 2018, 2:48:41 UTC

This topic doesn't look like it relates to seti@home subjects but rather astronomy in general.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1922367 - Posted: 3 Mar 2018, 7:31:16 UTC - in response to Message 1922281.  

This topic doesn't look like it relates to seti@home subjects but rather astronomy in general.


I agree.
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Message 1922379 - Posted: 3 Mar 2018, 8:43:12 UTC - in response to Message 1922367.  
Last modified: 3 Mar 2018, 9:01:01 UTC

It should go to Science (non SETI)
Tullio
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Message boards : Science (non-SETI) : Astronomers detect signal from the dawn of the universe.


 
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