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Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Sat Aug 16, 2014 8:34 am
by Paolo Berardi
My last observation, 12.9 aug 2014. Two Miles reference stars for flux calibration, HD 176301 and HD 196544.
4.9 and 12.8 august comparison of the same spectral range.
During large slit operations (long exposure guide camera frame). Target is slightly slit off-axis to avoid contamination by a field star.
Paolo
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Thu Aug 21, 2014 1:22 pm
by Jacques Montier
Hello,
Nova Cyg of the last night
- NovaCyg.png (18.05 KiB) Viewed 8552 times
My first try of measuring flux with Christian Buil first method and 23um/230um slit
- NovaCyg_flux.png (18.31 KiB) Viewed 8552 times
Regards,
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Wed Sep 03, 2014 8:33 am
by Jacques Montier
Hello all,
Flux comparison of the nova on 20140820, 20140829 and 20140901
- novacyg_flux_comparison.png (9.34 KiB) Viewed 8515 times
- novacyg_flux_comparison2.png (14.3 KiB) Viewed 8515 times
- novacyg_flux_anim.gif (23.84 KiB) Viewed 8515 times
Cheers,
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Sun Sep 14, 2014 7:04 am
by Francois Teyssier
Nova Cyg 2014 in nebular phase
- NovaCyg2014.png (4.79 KiB) Viewed 8485 times
Note the development of [OIII] 5007, 4959, [OII] and also He I lines 5876, 6876, 7085 ("Helium flash")
François
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Thu Sep 18, 2014 2:57 pm
by Tim Lester
Nova Cyg for Sept 17 calibrated for flux.
Multiplying by the V Bessel function gives a V magnitude of 12.65, in very good agreement with AAVSO data.
Tim
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Sun Sep 21, 2014 9:16 pm
by Francois Teyssier
Very fast evolution,
noticelly [OIII] lines
- novacyg2014.png (5.47 KiB) Viewed 8394 times
A daily coverage should be usefull for a few days
François
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Tue Sep 23, 2014 5:32 pm
by Francois Teyssier
Thanks to Joan and Antonio 's spectrum, we can establish that the "[OIII] flash" occured precisely between 20.9 and 21.8 of september
- .png (5.37 KiB) Viewed 8363 times
François
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Tue Sep 23, 2014 6:03 pm
by Jacques Montier
Hello,
Here is the nova spectrum of the last night
- novacyg.png (10.1 KiB) Viewed 8361 times
Cheers,
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Tue Sep 23, 2014 9:54 pm
by Christian Buil
A spectrum taken the 19.9 / 09 / 2014, not perfect but can help for follow fast evolution.
Peculiar spectrum because it is one of the first light of setup presented here
http://www.spectro-aras.com/forum/viewt ... ?f=6&t=917
Christian
Re: Nova Cyg 2014 = PNV J20214234+3103296
Posted: Fri Sep 26, 2014 12:59 pm
by Jacques Montier
Hello,
Nova Cyg on 25/09
- novacyg.png (9.39 KiB) Viewed 8323 times
Regards,