Solar flares and their observation

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Merlin66
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Solar flares and their observation

Post by Merlin66 »

The SHG guys as well as others may be interested to read this paper.
http://articles.adsabs.harvard.edu//ful ... 9.000.html


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Re: Solar flares and their observation

Post by highfnum »

interesting -- names of observatories i never heard of


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Re: Solar flares and their observation

Post by Merlin66 »

The illustration of the flare emission profile, to me shows Severny's "moustache" very well. My wife thinks it's Mick Jagger!!!


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"Imaging Sunlight - using a digital spectroheliograph" - Springer
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Re: Solar flares and their observation

Post by Montana »

Thanks for the link Merlin :)

Alexandra


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Re: Solar flares and their observation

Post by marktownley »

Interesting Ken, thanks :)


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Re: Solar flares and their observation

Post by p_zetner »

Thanks for the interesting link, Ken.

You've mentioned the "moustache" flare spectrum before and I thought that would be an interesting observation to make someday.
Turns out I've already photographed it (in Ca H)! Here's my earlier posting of the spectrum:

http://solarchat.natca.net/viewtopic.php?f=8&t=12329

Here's a reworked diagram showing plotted spectral profiles of the flare itself and the (nearby) disk. The blue spectral plot is a moustache (kind of)!

Admittedly, the Ca H (and K) lines are more complicated than H alpha so the difference between flare and disk may not be as pronounced in shape. Big difference in intensity, though.
Also, the difference spectrum exhibits a number of smaller peaks (aside from the "big two"), showing that the flare seems to "fill in" many of the weaker, narrow absorption lines within the Ca H absorption profile.

Cheers.
Peter.
CaH Flare spec rework.png


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