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Post Info TOPIC: Tycho's Supernova Remnant


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Supernova 1572
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Tycho's Supernova Remnant:
NASA'S Chandra Finds New Evidence on Origin of Supernovas

tycho2_w2.jpg

This new image of Tycho's supernova remnant, dubbed Tycho for short, contains striking new evidence for what triggered the original supernova explosion, as seen from Earth in 1572. Tycho was formed by a Type Ia supernova, a category of stellar explosion used in measuring astronomical distances because of their reliable brightness.
Low and medium energy X-rays in red and green show expanding debris from the supernova explosion. High energy X-rays in blue reveal the blast wave, a shell of extremely energetic electrons. Also shown in the lower left region of Tycho is a blue arc of X-ray emission. Several lines of evidence support the conclusion that this arc is due to a shock wave created when a white dwarf exploded and blew material off the surface of a nearby companion star. Previously, studies with optical telescopes have revealed a star within the remnant that is moving much more quickly than its neighbours, hinting that it could be the companion to the supernova that was given a kick by the explosion.

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L

Posts: 131433
Date:
Tycho's Supernova Remnant
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The discovery of a pattern of X-ray "stripes" in the remains of an exploded star may provide the first direct evidence that a cosmic event can accelerate particles to energies a hundred times higher than achieved by the most powerful particle accelerator on Earth.
This result comes from a very long observation of the Tycho supernova remnant with NASA's Chandra X-ray Observatory. It could explain how some of the extremely energetic particles bombarding the Earth, called cosmic rays, are produced.

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