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Originally Posted by Nereid
I meant, in my explanation, I wasn't clear which 'image data' should be divided by which other (the 171Å by the 191Å, or the other way around).
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I think that is probably the nature of the mistake Lockheed made as well frankly.
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Well then, I apologise for not being sufficiently clear, because I did no such thing!
It may be that we will need the FITS file to continue discussion, and possibly the 191Å FITS image as well.
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If you do get such information out of Lockheed, please post it since I would be most interested in duplicating their work myself, but no such information was forthcoming in my repeated emails to Lockheed.
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Never mind, now that we're in ATM, let me ask you: why do you think the 'blue background' is
a ) a 'background' (and not part of the corona?
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Because the corona is the lit up part in the composite Yohkoh/Trace image. I can see where the coronal loops enter the corona from this image. The corona is actually quite a bit higher in the atmosphere than the based of the coronal loops.
In the other composite image, you can see the coronal loops emitting green light from below the plasma layer, and we see it also rising through the plasma layer.
If the corona was the hottest part, rather than the heated plasma column, the heat would show up one or more of these frequencies. It's not there.
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b ) 6000K (and not ~1 million K)?
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If it's a million degrees K, where are the photons from it? We don't see any photons in 171A, 195A or Yohkoh images for that matter. If the background it hotter, where is the evidene of it in "standard" 171a or Yokhoh images? These images show all the heated plasma is contained within the coronal loops. When these loops reach the corona, they glow in soft xray. The base of these loops however originate much LOWER in the atmosphere based on these composite images.
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The photosphere yes; penumbral filaments too? Likely, but I'd like you to provide a reference please.
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Typically the top of the penumbral filaments is considered the top of the photosphere. If you prefer photosphere to penumbral filaments, that's ok by me. The arguement applies either way.
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That seems to be a summary of some 'model' of the Sun quite different from the mainstream one - is it yours?
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I don't own reality Nereid, and I will continue to argue the point from a gas model perspective so you can see it makes no difference how I appoach it. The superheated plasma column still originates from below the photosphere in standard gas models. It is irrelevant whether this is argued via the gas model or a solid surface model.
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You're going to have to slow down - for starters, what is this 'superheated plasma'? How did you come to the conclusion that any such stuff can 'stream' or 'rise' 'through the surface of the photosphere'?
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What is a coronal loop in your opinion? Where does this superheated plasma come from, and how does it form? How does it get from the photosphere into the corona? What is the heat source for this loop?
Before we go any further, I want to understand your answers to these questions. I was not aware there was any debate that coronal loops originate from the core, or from beneath the visible photosphere.