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« "Is There Unstoppable Global Warming Every 1500 Years?" (Weekend Feature) |Main| Spectacular Globular Cluster Found Harboring a 13-Billion-Year-Old Planet (Weekend Feature) »September 08, 2012 Small Magellanic Cloud Reveals a Challenge to Big Bang Physics
Stars in the Milky Way have about four times less lithium on the surface than expected by Big Bang predictions. Some scientists suggest that stellar activity might destroy lithium, or the element might sink from the surface through lighter hydrogen, but the remarkably consistent ratio from star to star is a challenge to those explanations. Observations of gas in the Small Magellanic Cloud revealed the amount of lithium that predictions say would have been produced at the Big Bang, but leave no room for subsequent production of the element.
One explanation could be a novel kind of physics operating at the Big Bang that left less lithium than the Standard Model predicts. J. Christopher Howk, Nicolas Lehner and Grant Mathews of the Center for Astrophysics at the University of Notre Dame published a paper this week in the journal Nature titled "Observation of interstellar lithium in the low-metallicity Small Magellanic Cloud."The astrophysicists have explored a discrepancy between the amount of lithium predicted by the standard models of elemental production during the Big Bang and the amount of lithium observed in the gas of the Small Magellanic Cloud, a galaxy near to our own.
"The paper involves measuring the amount of lithium in the interstellar gas of a nearby galaxy, but it may have implications for fundamental physics, in that it could imply the presence of dark matter particles in the early universe that decay or annihilate one another," Howk says. "This may be a probe of physics in the early universe that gives us a handle on new physics we don't have another way to get a handle on right now."
Using observations from European Southern Observatory's Very Large Telescope (VLT) in Chile, the team measured the amount of lithium in the interstellar gas of the Small Magellanic Cloud, which has far fewer star-produced heavy elements than the Milky Way.
In addition to the production of elements by fusion in the core of stars, scientists believe conditions immediately after the Big Bang led to the formation of some elements, including a small amount of lithium. The team will conduct three nights of observations on the VLT in November. They will look for the lithium isotope 7Li in the Large Magellanic Cloud and 6Li in both the Large Magellanic Cloud and the Small Magellanic Cloud. The standard model predicts that no 6Li was created at the Big Bang.
The Daily Galaxy via Nature
Posted at 08:45 AM | PermalinkComments
AN ELEMENTARY WRONG FORMATION MODEL
Quote: "The astrophysicists have explored a discrepancy between the amount of lithium predicted by the standard models of elemental production during the Big Bang and the amount of lithium observed in the gas of the Small Magellanic Cloud, a galaxy near to our own”.
AD: OK then the Big Bang and the Standard model both are wrong regarding the formation of elements, but what then? Maybe the formation has nothing to do with the age of a star? Maybe the star formation hypothesis itself is wrong?
- Since our solar is an integrated part of the galactic rotation its formation shall be connected to this formation and not to “a local cloud of dust and gas that suddenly collapsed and formed our sun and planets”.
The actual amount and composition of gas and dust in the molecular cloud that formed our galaxy – and therefore also our solar system – decided what kind of elements that could be formed in our galaxy and in our solar system, and it is very logical that stars in other galaxies have other compositions of gasses and particles.
- It is the standard formation model itself that is wrong, connecting age to the solar formation and assuming that gasses and particles are evenly spread all over in cosmos, which this article contradicts very clearly.
again the 14 billion years and the big-bang BS...is anybody here that believes we`re right in the middle of the sphere? you`re all living in a box with your mind. Let`s consider we are at half distance between middle Universe and the Universe border. We should see stars in one direction (border) at 7 billion LY, and in the other (through the center of the Universe) at 21 billion LY. Instead we see stars at 14 billion LY in all directions. Please get out of your mind box.
Posted by:Gaugain |September 09, 2012 at 02:47 AMThere could be higher concentrations of Lithium in other galaxies. This would balance out the big bang theory. Our universe is not homogenous.
Posted by:Pete |September 09, 2012 at 05:48 AMFrom the time of the very auspicious inception of the civilization, mankind is continuing to find out the correct answer to the question about universe creation or creator. Aborigines have taking up the considerations of the causes by religious thoughts in different ways as consolations as there was no practical answer or solutions to the questions. Pensive it mentioned below the little serving as an example of my research results and see Interesting facts about the Universe, as I see its- New Discovery of the Universe. See at http://t.co/jVFHtSCr
Posted by:Shahidur Rahman Sikder |September 09, 2012 at 03:19 PMPost a comment
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