The Leigh Hunt for inscrutable disconsolate matter has so far give rise very trivial solvent , but scientists might have found evidence of " dark matter obliteration , " essentially dark issue corpuscle clash and producing a signal . An American team of astronomers discovered the promising da Gamma - beam emission coming from within the halo of the Milky Way .
The rootage , 3FGL J2212.5 + 070 , was regain to be produce gamma - ray of light by NASA’sFermi telescope . What ’s unusual , though , is that this source is spread over a large realm – or in other words , it is spatially extended . Other root for gamma - rays , such as pulsars and mordant holes , are " peak - like " and get along from one place .
colored matter annihilation farm brightness in a limited wavelength range and since this source was not notice at other wavelength aside from gamma - rays , it is a not bad campaigner for being a small clump of dark matter ( known as a subhalo ) that is annihilating into gamma - ray of light . The finding have been submitted to the Journal of Cosmology and Astroparticle Physics , and are usable onarXiv .
“ drawn-out objects that give off in gamma - rays also breathe in radio receiver , disco biscuit - rays , and so on , ” lead source Dr. Bridget Bertoni differentiate IFLScience . “ So , the fact that we found something that was emitting only in gamma - ray that was protract and had a spectrum that looked like a dark matter obliteration spectrum made this source an specially interesting dark matter subhalo candidate . ”
NASA ’s Fermi scope , illustrated , was used to make the discovery . NASA / Fermi
Dark matteris a cryptical type of topic that percolate the world . It ’s six times more abundant than ordinary subject and it does n’t interact with brightness , hence the nickname “ dark . ” But we can see the effect of dark matter on the shape of extragalactic nebula and how they are distributed in space .
sinister matter is mean to pile up at the center of galaxies , so several searches have been deal to seem for signaling from the core group of the Milky Way . But while some potential signal have been discover , there ’s alot of debateon the nature of these sources .
“ We followed another elbow room to search for this dark matter obliteration , complementary to hunting in the galactic center , ” said Dr. Bertoni . “ We are looking at non-white matter subhalos . These are small bound clumps of dark matter that are in the Milky Way . It is auspicate that there should be many small clumps of dismal matter around galaxies such as the Milky Way . ”
Astronomers think that dark affair could be made by weakly interacting massive molecule ( WIMPs ) . When these particles clash , they are expected to let out gamma - beam of light – the signal of which could be observed by da Gamma - ray telescopes such as the Fermi scope .
While the source is very promising , the researchers have discussed the possibility that the detection is not a unmarried extended subhalo but two nearby da Gamma - ray sources . The model suggests that there is a 2 percentage probability that a pair such as this would exist somewhere in the sky . The hazard is small but not zero , and more observation are necessary to confirm its true nature .
“ It would be heavy to have other follow - up [ observations ] of this object , ” said Dr. Bertoni . “ What you would need are observation with a gamey angulate answer to distinguish if this is two object or one object . Also , to preserve to search for da Gamma pulsations coming from this aim would be useful as well . ”
