Astronomy
A new three dimensional model of the Cassiopeia A supernova reveals it's bubbly interior.
One of the study's authors Professor Robert Fesen of Dartmouth College in New Hampshire says,"This is the first time we've actually seen such a complete image of what the interior of this thing looks like,"
Cassiopeia A was created 340 years ago when a massive star exploded to form a neutron star.In this type of explosion, known as a core-collapse supernova, the outer layers of the star drop in free fall, reaching speeds of 70,000 kilometres per second, a significant fraction of the speed of light. But, somehow that material suddenly stops and ends up travelling the other way at up to 10,000 kilometres per second.
Scientists call this sudden reversal a "bounce", but until now they've been unsure exactly how it happens.
This study was published in the journal Science.
Source:- ABC Science.
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There was a star somewhere around the sky staying almost unnoticeable, and got burst out suddenly in to a blistering brightness; it's just a one more Supernova!--if not Nova. The energy and light that was radiated in to the sky during the star's...
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Astronomy
New 3-D map reveals bubbly interior of Supernova. .
One of the study's authors Professor Robert Fesen of Dartmouth College in New Hampshire says,"This is the first time we've actually seen such a complete image of what the interior of this thing looks like,"
Cassiopeia A was created 340 years ago when a massive star exploded to form a neutron star.In this type of explosion, known as a core-collapse supernova, the outer layers of the star drop in free fall, reaching speeds of 70,000 kilometres per second, a significant fraction of the speed of light. But, somehow that material suddenly stops and ends up travelling the other way at up to 10,000 kilometres per second.
Scientists call this sudden reversal a "bounce", but until now they've been unsure exactly how it happens.
This study was published in the journal Science.
Source:- ABC Science.
- A Humongous Star Explosion
The "SN 2006gy" explosion took place in the galaxy called NGC 1260, 240 million light-years away. It was 100 times more powerful than most typical supernovas, the brightest and most energetic ever recorded. It was first detected in September 2006, using...
- The Firehead Supernova N 63a
It is estimated that the progenitor of the supernova that produced the remnant seen here was about 50 times more massive than our own Sun. Such a massive star has strong stellar winds that can clear away its ambient medium, forming a wind-blown bubble....
- Difference Between Nova And Supernova
As I said before a Nova is a completely different process compared with a Supernova. A Nova is actually a sudden brightness that spreads across the surface of a White dwarf--kind of a star. The brightness is the result of a fusion reaction that happens...
- What Is A Supernova?
There was a star somewhere around the sky staying almost unnoticeable, and got burst out suddenly in to a blistering brightness; it's just a one more Supernova!--if not Nova. The energy and light that was radiated in to the sky during the star's...
- What Is A Nova?
A Nova is not a new star that appears all of a sudden in the sky, as its name suggests. It's actually a sudden brightness that appears on the surface of an existing white dwarf star in a binary system with another star. The White dwarf star's...