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A strange burst of radiation from space has left scientists baffled

indy100.com 12/7/2022

"\u003Chtml\u003E\n \u003Chead\u003E\u003C\u002Fhead\u003E\n \u003Cbody\u003E\n \u003Cdiv\u003E\n \u003Cdiv\u003E\n \u003Cdiv\u003E\n \u003Cdiv\u003E \n \u003Cp\u003E\u003Ca href=\"https:\u002F\u002Fwww.indy100.com\u002Ftopic\u002FAstronomers\"\u003EAstronomers\u003C\u002Fa\u003E are in a state of bewilderment after they discovered strange blasts of \u003Ca href=\"https:\u002F\u002Fwww.indy100.com\u002Ftopic\u002Fradiation\"\u003Eradiation \u003C\u002Fa\u003Efrom \u003Ca href=\"https:\u002F\u002Fwww.indy100.com\u002Ftopic\u002Fspace\"\u003Espace\u003C\u002Fa\u003E.\u003C\u002Fp\u003E \n \u003Cp\u003EThose blasts, known as gamma-ray bursts (GRBs), seem to come from a black hole that is developing slowly after two stars merged.\u003C\u002Fp\u003E \n \u003Cp\u003EAccording to\u003Ca href=\"https:\u002F\u002Fwww.newscientist.com\u002Farticle\u002F2350276-a-weird-gamma-ray-burst-doesnt-fit-our-understanding-of-the-cosmos\u002F\"\u003E NewScientist, \u003C\u002Fa\u003Egamma-ray bursts come in two categories: short GRBs and gamma-ray explosions: short GRBs and long GRBs.\u003C\u002Fp\u003E \n \u003Cp\u003EThe short GRBs last under two seconds and tend to occur when two neutron stars smash and fall into a black hole. Long GRBs can last two minutes and are linked to supernovas, powerful and luminous star explosions.\u003C\u002Fp\u003E \n \u003Cp\u003EHowever, when GRB 211211A was seen in 2021, it didn’t fit that criterion.\u003C\u002Fp\u003E \n \u003Cp\u003EThe\u003Ca href=\"https:\u002F\u002Fwww.newscientist.com\u002Farticle\u002F2350276-a-weird-gamma-ray-burst-doesnt-fit-our-understanding-of-the-cosmos\u002F\"\u003E New Scientist \u003C\u002Fa\u003Ereported that four research groups observed the GRB, and they all witnessed the same thing - two stars colliding but only for 60 seconds.\u003C\u002Fp\u003E \n \u003Cp\u003E“Two seconds is how long it takes in a merger for a black hole to form and eat up everything in its environment, so it’s very strange that this lasted a whole minute,” said \u003Ca href=\"https:\u002F\u002Fresearch.birmingham.ac.uk\u002Fen\u002Fpersons\u002Fbenjamin-gompertz\"\u003EBenjamin Gompertz\u003C\u002Fa\u003E, a professor of gravitational wave astronomy at the University of Birmingham.\u003C\u002Fp\u003E \n \u003Cp\u003EOne of the research teams believes that the merger could have left a neutron star called a magnetar, which could be catapulting the gamma-ray emission following the collision.\u003C\u002Fp\u003E \n \u003Cp\u003EMagnetars are the most he\u003Ca href=\"https:\u002F\u002Fearthsky.org\u002Fspace\u002Fwhat-is-a-magnetar\u002F\"\u003E most magnetic stars \u003C\u002Fa\u003Ein the solar system.\u003C\u002Fp\u003E \n \u003Cp\u003EOn the other hand, the other three teams feel the blasts left behind a black hole.\u003C\u002Fp\u003E \n \u003Cp\u003EIt’s still unknown how that could create the long GRB.\u003C\u002Fp\u003E \n \u003Cp\u003E“This is telling us that there is a missing piece of the puzzle that we didn’t even know was missing,” said professor \u003Ca href=\"https:\u002F\u002Feleonoratroja.wordpress.com\u002F\"\u003EEleonora Troja\u003C\u002Fa\u003E at Tor Vergata University of Rome\u003C\u002Fp\u003E \n \u003Cp\u003EAlthough GRB 211211A is separate from the typical GRB categorisations, there are others out there.\u003C\u002Fp\u003E \n \u003Cp\u003EThe other outlier GRBs haven’t been monitored as closely. Still, researching this particular GRB can help scientists better understand what’s happening.\u003C\u002Fp\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fbody\u003E\n\u003C\u002Fhtml\u003E"

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