Solar flares and their observation

I LOVE finding out about different ways to appreciate the Sun and light in general. Use this forum to post your info or questions about various outside the mainstream ways to appreciate our life giving star!
Post Reply
User avatar
Merlin66
Librarian
Librarian
Posts: 3170
Joined: Tue Dec 13, 2011 1:23 pm
Location: St Leonards, Australia
Contact:

Solar flares and their observation

Post by Merlin66 » Sun Sep 27, 2015 4:42 am

The SHG guys as well as others may be interested to read this paper.
http://articles.adsabs.harvard.edu//ful ... 9.000.html
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

highfnum
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 1234
Joined: Sat Nov 24, 2012 2:33 pm

Re: Solar flares and their observation

Post by highfnum » Sun Sep 27, 2015 12:02 pm

interesting -- names of observatories i never heard of

User avatar
Merlin66
Librarian
Librarian
Posts: 3170
Joined: Tue Dec 13, 2011 1:23 pm
Location: St Leonards, Australia
Contact:

Re: Solar flares and their observation

Post by Merlin66 » Sun Sep 27, 2015 10:13 pm

The illustration of the flare emission profile, to me shows Severny's "moustache" very well. My wife thinks it's Mick Jagger!!!
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer

User avatar
Montana
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 19808
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK

Re: Solar flares and their observation

Post by Montana » Mon Sep 28, 2015 10:23 am

Thanks for the link Merlin :)

Alexandra

User avatar
marktownley
Librarian
Librarian
Posts: 24543
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Contact:

Re: Solar flares and their observation

Post by marktownley » Tue Sep 29, 2015 5:59 am

Interesting Ken, thanks :)
Image
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!

User avatar
p_zetner
Almost There...
Almost There...
Posts: 901
Joined: Sun Mar 18, 2012 4:59 pm
Location: Winnipeg, Manitoba, Canada

Re: Solar flares and their observation

Post by p_zetner » Tue Sep 29, 2015 5:16 pm

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

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests