I What happens to the material not involved in the core collapse of a supernova?

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The discussion focuses on the fate of material not involved in the core collapse of a supernova, specifically the outer layers of the star and surrounding clouds. It raises questions about whether this material disperses into space or remains gravitationally bound, potentially collapsing in the future. Examples of supernova remnants, like the Crab Nebula, illustrate the expansive nature of these remnants, which can grow significantly over time. Additionally, it is noted that massive stars may form low-mass black holes after a supernova, with some material falling back due to gravitational forces. Overall, the conversation highlights the complex dynamics of supernova remnants and their potential for future gravitational interactions.
MarkL
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Supernovas
What happens to the material not involved in the core collapse of a supernova? This would be the outer portion of a star or any cloud that surrounds the star. All material to infinity or does some material remain close -- gravitationally close that might collapse if it could. thanks
 
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MarkL said:
Summary:: Supernovas

What happens to the material not involved in the core collapse of a supernova? This would be the outer portion of a star or any cloud that surrounds the star. All material to infinity or does some material remain close -- gravitationally close that might collapse if it could. thanks

Have you looked at supernova remnants on the net ? there's lots of them

Here's a couple of random examples
M1 - Crab Nebula in Taurus
The Crab Nebula is around 10 lightyears across and continues to expand at around 4.8 million km/h

Crab-Nebula-M1.jpg


N1006

SN-1006.jpg
 
davenn said:
Have you looked at supernova remnants on the net ? there's lots of them

Here's a couple of random examples
M1 - Crab Nebula in Taurus
The Crab Nebula is around 10 lightyears across and continues to expand at around 4.8 million km/h

View attachment 282189

N1006

View attachment 282190
 

Thread 'Project Progress Report and possible Radio Astronomy Technique?'

Some 8 years ago I posted some experiments using 2 Software Defined Radios slaved to a common clock. The idea was measure small thermal noise by making correlation measurements between the IQ samples from each radio. This is a project that has kinda smoldered in the background where I've made progress in fits and starts. Since most (all?) RA signals are small thermal signals it seemed like the technique should be a natural approach. A recent thread discussing the feasibility of using SDRs to...
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