New images with my SHG

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Phil Rousselle
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New images with my SHG

Post by Phil Rousselle » Tue Jul 22, 2014 4:30 pm

hi everybody
my last solar observation was on july 3. I'm a very lazy boy now

the usual 3 wavelengths
Image

a Dopplergram (without rotational shift)
Image

and a not very good magnetogram.
Image

Regards
Phil



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Re: New images with my SHG

Post by marktownley » Tue Jul 22, 2014 6:33 pm

Very nice! Very interesting too! :cool:


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Re: New images with my SHG

Post by Carbon60 » Tue Jul 22, 2014 6:39 pm

Very impressive!

Fantastic images.

Please can you explain how you obtained the magnetograph?

Stu.


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Re: New images with my SHG

Post by p_zetner » Tue Jul 22, 2014 7:01 pm

Wonderful images, Phil. (Welcome back!)

Can you tell me the magnitude of the field in the magnetogram and the corresponding shift of the Fe line?
What field polarity does black / white represent?
I'm assuming you're doing this, as you describe on your site, with a polarizer as well? I'm gearing up my instrument for these studies also.

Cheers.
Peter.



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Re: New images with my SHG

Post by Phil Rousselle » Tue Jul 22, 2014 7:24 pm

Happy to see your responses

carbon60 and Peter, I have a page who describes the method and give som explainations as polarity and scale.
http://www.astrosurf.com/spectrohelio/m ... phe-en.php
If it does not reply enough to your questions, i'll try to continue here

Peter, the lower intensity of magnetic fields that i can record is about 100 to 50 gauss. This magnetogram is not good because the intensity scale is not the same on the whole disk (problem to get a good focus of polarized beams)

Phil



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Re: New images with my SHG

Post by swisswalter » Wed Jul 23, 2014 4:39 am

Hi Phil

what a wonderful job. Congratulations


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Re: New images with my SHG

Post by alex » Wed Jul 23, 2014 9:25 am

swisswalter wrote:Hi Phil

what a wonderful job. Congratulations
I'll second that!!



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Re: New images with my SHG

Post by Wah » Wed Jul 23, 2014 9:27 am

Phil's SHG and images are excellent as always.



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Re: New images with my SHG

Post by Montana » Wed Jul 23, 2014 11:03 am

Truly amazing :bow :bow :bow

Alexandra



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Re: New images with my SHG

Post by Phil Rousselle » Fri Jul 25, 2014 12:45 pm

thank you very much
Phil



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Re: New images with my SHG

Post by sullij1 » Sun Aug 03, 2014 1:06 am

Very well done.


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Re: New images with my SHG

Post by jp-brahic » Sun Aug 03, 2014 6:20 am

great work Phil ;)

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Re: New images with my SHG

Post by highfnum » Fri Nov 21, 2014 12:49 am

a true master with this method

tre bien indeed



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