v694 Mon

[umberto sollecchia]

Bonjour à tous, un nouveau profil et l 'animation d'observation 03.08.2016.

Profilo v694mon.png (7.71 KiB) Viewed 9668 times

Animation

@Animazione.gif (63.78 KiB) Viewed 9644 times

Salutations Umberto

[umberto sollecchia]

Bonsoir à tous, le profil de ce soir.

Profilo.png (4.97 KiB) Viewed 9641 times

salutations umberto

[Joan Guarro Flo]

Hi:

It is also a graph of last night, which complements that of the Umberto.

Regards, Joan.

[Paolo Berardi]

Hi Joan, Umberto and all. A mid-res spectrum for the same night (between many clouds...):



Plot of radial velocity:



It seems to me that maximum radial velocity has increased (~ -3000 Km/s).

Paolo

[Francois Teyssier]

Excellent
Complex profile of the absorption
Clear sky today, for the first time in a long time.
I'll try it. Not easy for me, it's very low.
François

[Joan Guarro Flo]

Ciao Paolo

E'un buon lavoro.

Saluti tanti, Joan.

[Paolo Berardi]

Thank you François, Joan.

I add a H-Alpha Vrad comparison between 5 feb and 11 mar 2016.



Paolo

[Peter Somogyi]

Nice series for the lores full spectra, ideal for a real data mining!

Just for my curiosity I've compiled a LoRes serie of v694 Mon picked every day, to get an insight what is changing and how does ARAS correlate with AAVSO.
Hope authors don't mind to publish such a compilation (2016.01.20 - 2016.03.07):

v694mon_20160120_0307_full.gif (785 KiB) Viewed 9579 times

This is the way I produced this animated gif:
- downloaded 22 spectra from here one by one via normal http, trying to cover the most interesting AAVSO-reported peak around 2016-FEB-11/12:
http://www.astrosurf.com/aras/Aras_Data ... 694Mon.htm
(at this time 2016.03.07 is the last downloadable)
- created continuum for each spectra via IRAF task 'continuum' with params:
sampling region: 3700:4800,5000:5800,5900:6400,6700:7200, order: 9, function: legendre, iteration: 100 (rejects outstanding peaks/holes)
- then divided each spectra by their extracted continuum
- generated AAVSO chart from http://www.aavso.org
- used ImageMagick to put aavso + annotate AUTHORs noting resolution at the bottom of pictures (and a set of linux commands, all free and opensource)
- of course, all thandled with my local script ecosystem...which is a set of random script stanzas in bash + IRAF commands I have gathered in the last 4-5 years + now.
Hope others find the animation useful for gathering insight what is changing.

Happy hunting!
- Peter

[Francois Teyssier]

After the episode "aquarium", the observatory works again.

v694mon_20160314.PNG (10.52 KiB) Viewed 9534 times

François

[Jim Ferreira]

Hello
This is my first time posting to the forum....so go easy on me. I've had 3 opportunities to collect V694 Mon low resolution spectra. Comparing the results from 3 nights, particularly at 4861 was suggestive, but considering the resolution, hardly quantitative. Still, suggestive.







Cheers
Jim Ferreira, Livermore CA