TCP J04291884+4354232 possible nova mag 10.2

Alerts and Monitoring of Novae
Post Reply
Joan Guarro Flo
Posts: 611
Joined: Thu Nov 03, 2011 8:50 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Joan Guarro Flo »

Hello,

That is the Nova Persei 2020 at last night, there are a significative changes with the above graphic.

Cheers, J. Guarro.
Attachments
NOVA PER2020_2.png
NOVA PER2020_2.png (26.77 KiB) Viewed 4965 times
umberto sollecchia
Posts: 242
Joined: Tue Dec 30, 2014 3:25 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by umberto sollecchia »

Félicitations Joan, le spectre de votre Echelle lit l'IR profond très utile pour l'examen de la nova.
Umberto
James Ley
Posts: 70
Joined: Tue Jan 23, 2018 6:57 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by James Ley »

Francois Teyssier wrote:James: ton spectre est particulièrement intéressant dans le proche UV
Il est le bienvenu dans la base si tu souhaites me l'envoyer

François Teyssier
Merci Francois,
Je vous l'enverrai.

James
Shelyak Alpy 600 (spectroscope, guiding module and calibration module) | GSO 8" f/4 | Orion Atlas Pro | ZWO ASI178MM-Cool (mono) | ZWO ASI290 Mini (mono)
"think like a photon" -- Steve Shore
Thibault de France
Posts: 6
Joined: Thu Aug 15, 2013 9:02 am

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Thibault de France »

Hi all,

My little contribution with a Lisa and a C8.


Thibault
Attachments
novaper2020_20201130_935.png
novaper2020_20201130_935.png (23.5 KiB) Viewed 4770 times
Last edited by Thibault de France on Sat Dec 05, 2020 11:26 pm, edited 1 time in total.
James Ley
Posts: 70
Joined: Tue Jan 23, 2018 6:57 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by James Ley »

Ma petite contribution pour ce soir.
nper2020b-_20201202_083_Jim Ley.png
Bonne nuit.
Shelyak Alpy 600 (spectroscope, guiding module and calibration module) | GSO 8" f/4 | Orion Atlas Pro | ZWO ASI178MM-Cool (mono) | ZWO ASI290 Mini (mono)
"think like a photon" -- Steve Shore
Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
Contact:

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Francois Teyssier »

Update of the lightcurve and ARAS spectra:
Still very luminous in visible range.
NovaPer2020_LC4.PNG
NovaPer2020_LC4.PNG (11.62 KiB) Viewed 4884 times
The last spectra show clearly the recombination: increase of the emission lines produced by the cascade of the electrons after recombination.
Les derniers spectres montrent clairement que la phase recombinaison a commencé: l'intensité des émissions augmente du fait de la cascade des électrons après leur recombinaison avec les ions.

Bonne continuation!
James Ley
Posts: 70
Joined: Tue Jan 23, 2018 6:57 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by James Ley »

Merci Francois.
Si l'on regarde le spectre de Mira
mira_20201126_126_Jim Leyzoom.png
On voit que l'émission à H-epsilon (397,0 nm) est absorbée par Ca II H (396,8 nm). Je pense que cela provoque une émission dans le triplet de calcium.

Mais dans le cas de Nova Per 2020
nper2020b-_20201202_083_Jim Leyzoom.png
on voit bien l'émission de H-epsilon et les absorptions de Ca II sont décalées vers le bleu.

Est-ce que ça veut dire que la recomibinaison et l'émission Balmer se produisent à une plus grande distance que l'absorption de caclium?
Shelyak Alpy 600 (spectroscope, guiding module and calibration module) | GSO 8" f/4 | Orion Atlas Pro | ZWO ASI178MM-Cool (mono) | ZWO ASI290 Mini (mono)
"think like a photon" -- Steve Shore
Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
Contact:

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Francois Teyssier »

James, pour comparer les raies (profiles, vitesses radiales)
Je te conseille d'utiliser la fenêtre "Velocity" de PlotSpectra avec l'option "Multi region plot"
NovaPer_Hb_CaII.PNG
Thibault de France
Posts: 6
Joined: Thu Aug 15, 2013 9:02 am

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Thibault de France »

Tonight spectra with Lisa

Thibault
Attachments
novaper2020_20201202_796.png
novaper2020_20201202_796.png (19.33 KiB) Viewed 4770 times
Last edited by Thibault de France on Sat Dec 05, 2020 11:20 pm, edited 1 time in total.
Joan Guarro Flo
Posts: 611
Joined: Thu Nov 03, 2011 8:50 pm

Re: TCP J04291884+4354232 possible nova mag 10.2

Post by Joan Guarro Flo »

Hello,

This is the NOVA Per 2020, with the LINX echelle on 2020 12 02.

That is the last spectra with the LINX, because I will change it for a new NOU_T in few days.
I am going to put the optical elements in the new one and I need the CCD cameras to test the new echelle.

Cheers, J. Guarro.
Attachments
_NOVAper2020 SMM.png
_NOVAper2020 SMM.png (21.86 KiB) Viewed 4812 times
Post Reply