Spectroheliogram of yesterday in Fe1 at 3922.92 A light, one of the iron lines near the CAIIK, as you can see in the image.
The low magnetic signature suggest the line could be at lower end of Chromosphere.Can anyone has some reference about this?
Fulvio
Spectroheliogram Fe1 at 3922
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Re: Spectroheliogram Fe1 at 3922
Very nice!
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: Spectroheliogram Fe1 at 3922
Tyhanks, Mark: there are a lot of lines to investigate in the UV, this is only one.I'm planning to visit, over the time, a great part of those compatible with the resolution of my POSS2 UV spectrograph and the QE of my camera.
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Re: Spectroheliogram Fe1 at 3922
Great image In the references all the iron lines seem to show photosphere/magnetic fields. However, I don't know about this specific iron line https://solarnutcase.livejournal.com/9556.html
Alexandra
Alexandra
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Re: Spectroheliogram Fe1 at 3922
OK, Alexandra: the line , following the paper, must belong to photosphere (high?), but with a feature of srtrong sensitivity to magnetic fields, that explain their emission appearance, due also to the high Landè factor (the Fe1 at 3922 has 2.26).Do you agree?
Fulvio
Fulvio