Astronomers might have plant evidence for a violent stellar amalgamation that can potentially explain one of the most energetic case in the universe : gamma - ray bursts .
Gamma - re bursts ( GRBs ) – the brightest events in the universe – are sudden and straightaway flashbulb of gamma - beam luminousness from very distant galaxies . One of these GRBs was detected by NASA ’s fleet lookout on September 3 , 2014 , and the analysis of this event has now been released .
It live on for less than two second and turn 2x1043joules of vitality , which is about 15 percent of the lifespan energy production of the Sun . The briefness of this GRB suggest that it was due to a collision of either neutron stars or a neutron star and a dark trap .
Such an event need peculiar attention , and researchers quickly followed up the first detection with several other official document , attempt to identify the cause of the GRB .
The observation with Chandra , NASA ’s hug drug - ray telescope , drive home the mostinteresting informationregarding the event . For 21 days , the source was monitored and the way the emission decreased over time offer important information on the source . Their findings are reported in the Astrophysical Journal and they can be record online atarXiv .
The GRB is turn up in a coltsfoot 3.9 billion light - geezerhood off . The afterglow indicated that the collision produce a narrow blue jet of da Gamma irradiation , which uranologist were only able-bodied to detect because it was pointing right at Earth . This implies that only 0.4 percentage of these GRBs can be detected .
But that does n’t mean that there are no other slipway to observe neutron star collision . merger between either two neutron star or a neutron star and disgraceful hole are expect to grow a large number ofgravitational waves , so LIGO could honour these events without the need to see a GRB first .
shortly , gravitational waving observation tower will be able of pinpoint the precise location in the sky of an event , and when that materialise , GRBs will finally reveal their secret .
