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Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Fri Nov 27, 2020 3:09 pm
by Paolo Berardi
Hi all, great spectra!
My contribution using Lires III and 600 l/mm grating.
H-beta and Fe II region
H-alpha, Fe II and neutral helium
Neutral oxygen and helium, maybe C II
(W25 filter to avoid 2nd order contamination)
Paolo
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Fri Nov 27, 2020 6:58 pm
by etienne bertrand
Comme Olivier avec l'Alpy j'ai un spectre un peu bossu qui monte du bleu vers 5800A puis après qui descend.
Olivier, tu montres des évolutions de la raie Ha extrêmement rapides, ça évolue aussi vite ?
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 1:00 am
by umberto sollecchia
Salut à tous, je place ma contribution à l'observation de cette nuit 27/11/2020.
Umberto Sollecchia
- novaper2020_20201127_885_Umberto Sollecchia.png (41.28 KiB) Viewed 4693 times
- novaper2020_20201127_885_VR_Umberto Sollecchia.png (22.48 KiB) Viewed 4693 times
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 9:36 am
by Francois Teyssier
Impressive change in one day. See also Olivier Garde's graphs.
The red component (linked to the absortion - 850 km/s) disappear
- novaper2020_Ha.png (20.93 KiB) Viewed 4669 times
EBE = Etienne Bertrand
Database updated:
http://www.astrosurf.com/aras/Aras_Data ... er2020.htm
Bonne continuation!
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 9:42 am
by Olivier GARDE
Second night on this Nova with a bad weather (feezing fog).
Here's the evolution of the balmer lines in one day
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 11:54 am
by Robin Leadbeater
Olivier GARDE wrote:
Here's the evolution of the balmer lines in one day
A spectrum taken a few hours later (LHIRES1200 R~5600) confirms the continuing evolution (The hump on the red edge of H alpha is no longer clear)
- novaper2020_20201128_051_Leadbeater.png (20.93 KiB) Viewed 4656 times
Robin
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 12:21 pm
by Stephane Charbonnel
Hello,
My little contribution ...
Shifted field :
- Champ décalé
- Nova_Per_Champ.jpg (42.3 KiB) Viewed 4650 times
Field with Nova in the hole :
- Champ spectral
- Nova_Per_Champ_Spectral.jpg (102.03 KiB) Viewed 4650 times
The result :
- Spectre
- ResultatAlpha.png (57.52 KiB) Viewed 4650 times
Stephane
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 3:48 pm
by Francois Teyssier
Steve Shore recalls that the near IR is very also important.
"somehow it's really essential that some spectra cover 7000-9000A (O I, Ca II, Paschen)"
Lhires III 600 l/mm
UVEX, LISA IR
Of course visual range remains very useful too!
Do not hesitate to share your observing session (in real time) in order to optimize the acquisitions between the observers.
http://spectro-aras.com/forum/viewtopic.php?f=12&t=2675
François
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 9:22 pm
by etienne bertrand
Ce soir le spectre a encore changé !! Incroyable cette évolution aussi rapide !
(je suis sur la cible avec l'Alpy, je vous partage le 1er spectre)
Re: TCP J04291884+4354232 possible nova mag 10.2
Posted: Sat Nov 28, 2020 9:49 pm
by Francois Teyssier
Trés bon, Etienne,
Oui, les absorptions augmentent, on doit être proche du maximum.
Un bonheur cette nova dans l'hémisphère nord (surtout par le stemps qui courrent ...)
François