How to describe the Sun's interior?
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JMz
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Fervent Freyja said:
I suggest you start with Chandrasekhar, S. (1958) [1939]. An Introduction to the Study of Stellar Structure. New York: Dover. ISBN 0-486-60413-6, quite readable, and very well reasoned.
Fervent Freyja
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JMz said:
I don't see reason to waste my time reading outdated material. I would rather continue reading updated work. Thanks, though.
JMz
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Assuming that reading Chandra were ever wasted time, my point in listing it was to demonstrate just how long the subject of the OP (rather than the surface layers) has been firmly established.
JMz
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That's the thing about 19 C. thermodynamics and Newtonian gravity (in the right hands!). :-)davenn said:
Fervent Freyja
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davenn said:It would be very wise of you to read up on the known basics
It would help stop you from making the really oddball comments you did a few posts ago
Not all info is outdated !
agreed
Hey! What's wrong with trying to persuade others to see my side and get a little more excited about something? It's urgent- I want to know what the solar interior looks like myself!
Oddball comments, yeah, did you see the poster who happened to sign up for an account just to try and insult me by telling me I live in fantasyland with butterflies!
Ken G
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Well, you can be pretty sure the solar interior is quite bright, and the region just below the surface is highly convective, almost like boiling water. It is threaded with magnetic fields which can introduce a lot of interesting plasma effects, like coronal heating. Exactly how it all works is not completely known, but then, it is also not completely known what is happening in a pot of boiling water-- and the latter is much easier to observe!
Science Advisor
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Fervent Freyja said:
everything, if it is ( and you used the word) fantasy and not science
Fervent Freyja said:Oddball comments, yeah, did you see the poster who happened to sign up for an account just to try and insult me by telling me I live in fantasyland with butterflies!
insults are not good
, but you should also take it as a hint to stay on the straight and narrow in a science forum Please, and I can't stress this enough, Don't dismiss older research papers. They are still full of good valid information
We don't dismiss Einstein's work and theories because they are ~ 100 yrs old ... aye ?
Dave
JMz
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There are worse things to live with. :-) But this is PF: reasoned discourse, new data, peer-reviewed publications, and so forth, all ultimately (though not necessarily directly) founded on observations of the natural world, to the greatest extent possible.Fervent Freyja said:
JMz
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Fervent Freyja said:
And BTW, if you want to see "excited", just wait till we have the next naked-eye-visible supernova, or an incoming radio signal encoding a series of prime numbers! ;-)
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@JMz
you are a way ahead of me on the theory side of things
PhD in astrophysics ... impressive
Are you active in any particular field(s) of research?
I'm just a very active amateur astronomer with 50 yrs of experience looking at the skies.
Wonder if you have seen my solar imaging thread
https://www.physicsforums.com/threads/solar-imaging-and-techniques.925656/
will give you an idea of my interests in in solar activity ... I started doing sunspot drawings in the early 1970's and progressed from there
my other major interest is Earth science... often post in the Earth science section of the forum
just missed completing my BSc in geology before leaving New Zealand in 1999 to come to Australia
Dave
you are a way ahead of me on the theory side of things
PhD in astrophysics ... impressive
Are you active in any particular field(s) of research?
I'm just a very active amateur astronomer with 50 yrs of experience looking at the skies.
Wonder if you have seen my solar imaging thread
https://www.physicsforums.com/threads/solar-imaging-and-techniques.925656/
will give you an idea of my interests in in solar activity ... I started doing sunspot drawings in the early 1970's and progressed from there
my other major interest is Earth science... often post in the Earth science section of the forum
just missed completing my BSc in geology before leaving New Zealand in 1999 to come to Australia
Dave
Stavros Kiri
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That sais it all! ...mathman said:
Thread closed.
(Just kidding!
)Edit: Superhot plasma, if I may add ...
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JMz
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davenn said:
Not in this. I try to stay well informed, that's all. These days, I mostly work in mathematical acoustics/digital signal processing -- which I got into from (a) digital image processing, which I got into from astronomy (all those great images begging for enhancement & analysis) + (b) radio astronomy (all that phase & directionality processing). So it's never far from my mind. :-)
When I read that, I wondered about H-alpha. Two questions there: Why the extreme narrow-band for the filters? I'd have guessed that you could get equally good pix with, say, 1-nm or maybe even 10-nm filters, instead of 0.3-nm. No? And second, what about H-inf, the continuum? I know the atmosphere cuts out near that wavelength, but I thought it still let some through. Or is the continuum just like H-alpha for imaging purposes, except that the filters and optics are more expensive for UV?
Also an interest of mine. :-)