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Major Astrophysics Discovery to be Announced on Monday
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Michael Watson Send message Joined: 7 Feb 08 Posts: 1388 Credit: 2,098,506 RAC: 5 |
A major discovery in astrophysics is set to be announced at 1600 GMT on Monday (9 a.m. Pacific Time, 12 Noon, Eastern Time). The announcement will apparently involve the detection of primordial gravitational waves from the earliest moments of the universe, during the postulated cosmic inflation. http://www.theguardian.com/science/2014/mar/14/gravitational-waves-big-bang-universe-bicep |
anniet ![]() Send message Joined: 2 Feb 14 Posts: 7105 Credit: 1,577,368 RAC: 75 ![]() ![]() |
A major discovery in astrophysics is set to be announced at 1600 GMT on Monday (9 a.m. Pacific Time, 12 Noon, Eastern Time). The announcement will apparently involve the detection of primordial gravitational waves from the earliest moments of the universe, during the postulated cosmic inflation. Thank you Michael! Sounds interesting and will be all ears :) |
![]() ![]() ![]() Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 ![]() ![]() |
A major discovery in astrophysics is set to be announced at 1600 GMT on Monday (9 a.m. Pacific Time, 12 Noon, Eastern Time). The announcement will apparently involve the detection of primordial gravitational waves from the earliest moments of the universe, during the postulated cosmic inflation. Thanks so much Michael, for this news. |
Thomas Send message Joined: 9 Dec 11 Posts: 1499 Credit: 1,345,576 RAC: 0 ![]() |
A major discovery in astrophysics is set to be announced at 1600 GMT on Monday (9 a.m. Pacific Time, 12 Noon, Eastern Time). The announcement will apparently involve the detection of primordial gravitational waves from the earliest moments of the universe, during the postulated cosmic inflation. +1 |
![]() ![]() Send message Joined: 24 Jan 00 Posts: 37423 Credit: 261,360,520 RAC: 489 ![]() ![]() |
It should be interesting. Cheers. |
yo2013 ![]() Send message Joined: 9 Mar 14 Posts: 173 Credit: 50,837 RAC: 0 ![]() |
I'll wait for the announcement before opening the champagne bottle. |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1388 Credit: 2,098,506 RAC: 5 |
Yes, let's hope that the discovery lives up to the highest expectations for it. The scientists involved have reportedly described the results of their work as a 'a major discovery'. If they're employing the caution appropriate to scientists, they must really have something! Cosmic inflation, while it has had several of its predictions fulfilled, and answers several very difficult cosmological problems, is still viewed by many as lacking empirical support. Gravitational waves of the appropriate sort could be a powerful confirmation of inflation. They may also make it possible to better define the nature of this inflation, and the physical mechanism by which it occurred. Well, one way or the other, we should know what they have in just over 24 hours. http://www.space.com/25066-major-astrophysics-discovery-announcement-monday.html |
![]() ![]() ![]() Send message Joined: 29 Jun 99 Posts: 11447 Credit: 29,581,041 RAC: 66 ![]() ![]() |
I just reposted the link over at Einstein, they would be very interested. |
Batter Up ![]() Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 ![]() |
I just reposted the link over at Einstein, they would be very interested. So will this be the end of Einstein@home? ![]() |
![]() ![]() ![]() ![]() Send message Joined: 15 May 99 Posts: 3830 Credit: 1,114,826,392 RAC: 3,319 ![]() ![]() |
So will this be the end of Einstein@home? From the little I know of this, I highly doubt it. These are indirectly detected waves from 13.8 billion years ago, whereas E@H is looking for direct detections of recent (well, cosmically) events in the hopes that wave events could be used as a sort of telescope to indicate phenomena. ![]() |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1388 Credit: 2,098,506 RAC: 5 |
Another article about the possibility of the discover of primordial gravitational waves, and what this could mean for cosmology. It does a good job of explaining the subject. http://www.skyandtelescope.com/news/home/Proof-of-inflationary-Universe-To-Be-Announced-Monday-250522521.html[/url] |
Batter Up ![]() Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 ![]() |
Another article ... "It will tell us something incredibly fundamental about what was happening when the universe was 10–34 seconds old," I'm confused, how can they time to 34 decimal places when time is not constant. ![]() |
![]() ![]() ![]() ![]() Send message Joined: 15 May 99 Posts: 3830 Credit: 1,114,826,392 RAC: 3,319 ![]() ![]() |
I'm confused, how can they time to 34 decimal places when time is not constant. 10^-34 seconds is the (extremely short) time after the Big Bang when gravity decoupled from the other three fundamental forces, being the weakest and most different. Grand Unification predicts that as energy increases the forces merge. This has been been confirmed experimentally so far for every force except gravity. ![]() |
yo2013 ![]() Send message Joined: 9 Mar 14 Posts: 173 Credit: 50,837 RAC: 0 ![]() |
"I'm confused, how can they time to 34 decimal places when time is not constant." Time is not constant? |
![]() Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 ![]() |
AFAIK gravitational waves from the Big Bang should have huge wavelengths, which were the target of the LISA system, abandoned by NASA and mothballed by ESA. Einstein@hone and Albert@home, which I take part in, search for much smaller wavelengths. Tullio |
Batter Up ![]() Send message Joined: 5 May 99 Posts: 1946 Credit: 24,860,347 RAC: 0 ![]() |
No, time is affected by speed and gravity relative to the observer. At least that is what my New Jersey homie said. ![]() ![]() |
Michael Watson Send message Joined: 7 Feb 08 Posts: 1388 Credit: 2,098,506 RAC: 5 |
The linked article suggests that gravitational waves detected as faint relics of the 'big bang' may be relatively short in wavelength-- 3000 meters to, probably, 3 cm. http://en.wikipedia.org/wiki/Gravitational_wave |
![]() ![]() Send message Joined: 28 Oct 09 Posts: 34060 Credit: 18,883,157 RAC: 18 ![]() ![]() |
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Michael Watson Send message Joined: 7 Feb 08 Posts: 1388 Credit: 2,098,506 RAC: 5 |
Here it is. Confirmed that the major discovery is the detection of gravitational waves connected to cosmic inflation. They spent several years checking their results to make sure it was what they thought it was. http://www.space.com/25078-universe-inflation-gravitational-waves-discovery.html |
![]() ![]() ![]() ![]() Send message Joined: 15 May 99 Posts: 3830 Credit: 1,114,826,392 RAC: 3,319 ![]() ![]() |
http://www.space.com/25078-universe-inflation-gravitational-waves-discovery.html From the article: A team led by John Kovac, of the Harvard-Smithsonian Center for Astrophysics, is announcing the results today (March 17), unveiling two manuscripts that have not yet been submitted to peer-reviewed journals. Hrm. Well, I'm sure they did their homework a little more rigorously than, say, Fleischmann and Pons*. :^) *(The cold fusion duo.) Edit: Between the time I posted this and now, they already changed the wording; now says "...that have been submitted to the prestigious journal Nature." ![]() |
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