Forum der Vereinigung der Sternfreunde
https://forum.vdsastro.de/

Solar eclipse observation
https://forum.vdsastro.de/viewtopic.php?t=4293		 Seite 1 von 1
Autor:  Alexandros Filothodoros [ 23. März 2015, 00:35:46 AM ]
Betreff des Beitrags:  Solar eclipse observation
Hello everyone :D

I have attached some fotos from my friend Aristeidis Voulgaris. He is still in Svalbard.

The sky was clear during totality and as you can see they got some flash spectra.

Cheers!
Alex

Dateianhang:
10984138_609853939114616_94473456060286843_n.jpg
10984138_609853939114616_94473456060286843_n.jpg [ 26.06 KiB | 2779 mal betrachtet ]
Dateianhang:
10866160_609859385780738_921065135976234719_o.jpg
10866160_609859385780738_921065135976234719_o.jpg [ 43.27 KiB | 2779 mal betrachtet ]
Dateianhang:
10007325_609985352434808_3875423426569615367_o.jpg
10007325_609985352434808_3875423426569615367_o.jpg [ 33.84 KiB | 2779 mal betrachtet ]
Dateianhang:
11082555_609853889114621_5959704036345729127_n.jpg
11082555_609853889114621_5959704036345729127_n.jpg [ 31.2 KiB | 2779 mal betrachtet ]
Dateianhang:
1957856_609605632472780_859867532247992644_o.jpg
1957856_609605632472780_859867532247992644_o.jpg [ 31.02 KiB | 2779 mal betrachtet ]
Autor:  Daniel Sablowski [ 23. März 2015, 20:27:50 PM ]
Betreff des Beitrags:  Re: Solar eclipse observation
Hi Alex,

nice impressions!

Now, well, what are they doing with such flash spectra?

ciao,
Daniel
Autor:  Alexandros Filothodoros [ 23. März 2015, 20:39:14 PM ]
Betreff des Beitrags:  Re: Solar eclipse observation
Aloha :D

The idea is to compare the intensity of Fe XIV. The stronger it is the more active the Sun is.
Also sometimes weak lines, that usually require a lot of energy to be produced, are detected. This gives a better understanding of the current status of the Sun.

Have a look here

http://arxiv.org/find/astro-ph/1/au:+Vo ... /0/all/0/1

The spectra form last Friday show that the lines are stong again.
Cheers
Alex :)
Autor:  Thomas Eversberg [ 23. März 2015, 21:22:48 PM ]
Betreff des Beitrags:  Re: Solar eclipse observation
Excellent stuff! Will they write an article for our journal?

Cheers, Thomas
Autor:  Daniel Sablowski [ 24. März 2015, 08:53:02 AM ]
Betreff des Beitrags:  Re: Solar eclipse observation
OK,

and these prominences are due to magnetic reconnection?

BTW: NASA is planing an interesting mission on that within the earth magnetic field:

https://www.youtube.com/watch?v=BGh1xc- ... e=youtu.be

http://science.nasa.gov/science-news/sc ... 10mar_mms/


cheers,
Daniel
Autor:  Alexandros Filothodoros [ 24. März 2015, 17:37:45 PM ]
Betreff des Beitrags:  Re: Solar eclipse observation
@Daniel

As far as I know the filaments are just the cold plasma following the magnetic lines. The Solar flares exist because of magn. reconnection.

@Thomas I can promise that I will ask.


Cheers :)
Alex
Autor:  Robin Leadbeater [ 25. März 2015, 15:38:59 PM ]
Betreff des Beitrags:  Re: Solar eclipse observation
Hello Alex
Zitat:

The idea is to compare the intensity of Fe XIV.
Very Interesting. I did not realise the Fe XIV line was visible in the flash (chromospheric) spectrum. I thought it was only seen in the corona which is very blurred in slitless spectra


Cheers
Robin
Seite 1 von 1 Alle Zeiten sind UTC+02:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/