TCP J04291884+4354232 possible nova mag 10.2

Alerts and Monitoring of Novae

Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Joan Guarro Flo » Tue Dec 01, 2020 11:09 am

Hello,

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

Cheers, J. Guarro.
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NOVA PER2020_2.png
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby umberto sollecchia » Tue Dec 01, 2020 8:24 pm

Félicitations Joan, le spectre de votre Echelle lit l'IR profond très utile pour l'examen de la nova.
Umberto
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby James Ley » Tue Dec 01, 2020 8:34 pm

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
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Thibault de France » Tue Dec 01, 2020 9:49 pm

Hi all,

My little contribution with a Lisa and a C8.


Thibault
Attachments
novaper2020_20201130_935.png
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Last edited by Thibault de France on Sat Dec 05, 2020 11:26 pm, edited 1 time in total.
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby James Ley » Wed Dec 02, 2020 6:04 am

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
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Francois Teyssier » Wed Dec 02, 2020 10:09 am

Update of the lightcurve and ARAS spectra:
Still very luminous in visible range.

NovaPer2020_LC4.PNG
NovaPer2020_LC4.PNG (11.62 KiB) Viewed 1454 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!
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby James Ley » Wed Dec 02, 2020 4:32 pm

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
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Francois Teyssier » Wed Dec 02, 2020 5:07 pm

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
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Thibault de France » Wed Dec 02, 2020 10:16 pm

Tonight spectra with Lisa

Thibault
Attachments
novaper2020_20201202_796.png
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Last edited by Thibault de France on Sat Dec 05, 2020 11:20 pm, edited 1 time in total.
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Re: TCP J04291884+4354232 possible nova mag 10.2

Postby Joan Guarro Flo » Thu Dec 03, 2020 10:26 am

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 1382 times
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