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    supernova tagged posts

    Superluminous Supernova marks the Death of a Star at Cosmic High Noon

    July 23, 2017, Categories  Astronomy/Space

    The yellow arrow marks the superluminous supernova DES15E2mlf in this false-color image of the surrounding field. North is up and east is left. This image was observed with the Dark Energy Camera (DECam) gri-band filters mounted on the Blanco 4-meter telescope on Dec. 28, 2015, around the time when the supernova reached its peak luminosity. Credit: Observers: D. Gerdes and S. Jouvel

    The yellow arrow marks the superluminous supernova DES15E2mlf in this false-color image of the surrounding field. North is up and east is left. This image was observed with the Dark Energy Camera (DECam) gri-band filters mounted on the Blanco 4-meter telescope on Dec. 28, 2015, around the time when the supernova reached its peak luminosity. Credit: Observers: D. Gerdes and S. Jouvel

    At a distance of 10 billion light years, a supernova detected by the Dark Energy Survey team is one of the most distant ever discovered and confirmed. The death of a massive star in a distant galaxy 10 billion years ago created a rare superluminous supernova that astronomers say is one of the most distant ever discovered...

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    How to make ‘your own supernova’

    July 9, 2017, Categories  Astronomy/Space

    Image credit: Shutterstock

    How to make a supernova – Summer Science Exhibition 2017

    Researchers are using the largest, most intense lasers on the planet, to for the first time, show the general public how to recreate the effects of supernovae, in a laboratory. One of the most extreme astrophysical events, Supernova explosions are the violent deaths of certain stars that scatter elements heavier than hydrogen and helium into surrounding space. Our own solar system is thought to have formed when a nearby supernova exploded distributing these elements into a cloud of hydrogen that then condensed to form our sun and the planets. In fact, the very atoms that make up our bodies were formed in the remnants of such an explosion.
     
    Working in collaboration with Imperial College, London, and AWE Aldermaston the tea...
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    Explosive Material: The Making of a Supernova

    April 10, 2017, Categories  Astronomy/Space

    Instability before the supernova

    Pre-supernova stars may show signs of instability for months before the big explosion. Credit: Weizmann Institute of Science

    Pre-supernova stars may show signs of instability for months before the big explosion, spewing material into space and creating a dense gas shell around themselves, report scientists in a new report. In the most common type of supernova, the iron core of a massive star suddenly collapses in on itself and the outer layers are thrown out into space in a spectacular explosion. New research led by Weizmann Institute of Science researchers shows that the stars that become core-collapse supernovae might already exhibit instability for several months before the big event, spewing material into space and creating a dense gas shell around themselves...

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    Calculations Show Close Ia Supernova should be Neutrino detectable offering possibility of identifying Explosion type

    March 5, 2017, Categories  Astronomy/Space

    Density contour plots including deflagration (white) and detonation (green) surfaces. Credit: arXiv:1609.07403 [astro-ph.HE] Read more at: https://phys.org/news/2017-03-ia-supernova-neutrino-possibility-explosion.html#jCp

    Density contour plots including deflagration (white) and detonation (green) surfaces. Credit: arXiv:1609.07403 [astro-ph.HE]

    A team of researchers at North Carolina State University has found that current and future neutrino detectors placed around the world should be capable of detecting neutrinos emitted from a relatively close supernova. They also suggest that measuring such neutrinos would allow them to explain what goes on inside of a star during such an explosion—if the measurements match one of two models the team built to describe the inner workings of a supernova.

    Supernovae have been classified into different types depending on what causes them to occur—one type, a la supernova, occurs when a white dwarf pulls in enough material from a companion, eventually triggering carbon fus...

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