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bipolar nebula

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#1 Mark SW

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Posted 08 August 2019 - 10:42 AM

Looking for more information on bipolar nebula. Are the central stars all binary stars? I have done the search thing and came back with a lot of nice pictures but no information.

 

From Wikipedia, the free encyclopedia

 

Bipolar planetary nebula PN Hb 12.[1]
A bipolar nebula is a type of nebula characterized by two lobes either side of a central star. About 10-20% of planetary nebulae are bipolar.[2]

 

 Though the exact causes of this nebular structure are not known, it is often thought to imply the presence of a binary central star with a period of a few days to a few years. As one of the two stars expelled its outer layers, the other disrupted the outflow of material to form the bipolar shape.[3].

 

 

Thank you 

Mark



#2 JGass

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Posted 08 August 2019 - 11:12 AM

Mark,

 

You might find this interesting (Link).


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#3 polare70

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Posted 08 August 2019 - 11:16 AM

Try see here !

https://iopscience.i...56/148/5/98/pdf
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#4 Mark SW

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Posted 08 August 2019 - 11:27 AM

Mark,

 

You might find this interesting (Link).

This was also on your link 

http://arxiv.org/abs/1307.5711

Thanks for the help




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