PNV J20233073+2046041 mag 6.8

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Re: PNV J20233073+2046041 mag 6.8

Postby Christian Buil » Thu Oct 24, 2013 12:10 am

Après une longue période de mauvaise météo un
spectre Alpy de la nova à l'occasion d'une très brève éclaircie (23.8 / 10 / 2013) :

Image

(impossible de faire une photométrie absolue - trop de nuages).

Christian
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Re: PNV J20233073+2046041 mag 6.8

Postby Christian Buil » Fri Nov 01, 2013 3:47 pm

An observation for the date October 30.805 (Alpy 600 on C11 - spectrometric reduction
with special slit):

Image

(it is a log view of course)

Spectrophotometric magnitude (JD 2456596.305):

B = 11.192
V = 11.200
R = 10.136

Image

Christian
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Re: PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Sun Nov 10, 2013 7:20 pm

A pair of developments with past data (Lhires III 600):

Raising of He II 4686 emission line (interpolation of 11 spectra from 1 to 26 october):

Image

Ionized iron emissions of multiplet 42 (Fe II 4924 and 5018) replaced by forbidden oxygen doublet [O III] 4959 and 5007 (interpolation of 14 spectra from 6 september to 28 october):

Image

Ciao
Paolo
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Re: PNV J20233073+2046041 mag 6.8

Postby Francois Teyssier » Mon Nov 11, 2013 5:05 pm

Very impressive and interesting Paolo


Ciao
François
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Re: PNV J20233073+2046041 mag 6.8

Postby Christian Buil » Wed Dec 04, 2013 12:50 am

Observation avec un Alpy 600 et une petite lunette de 85 mm bien achromatique (une FSQ85ED Takahashi),
le 3.7 décembre 2013.
Toujours instructif de voir ce que cela donne avec un petit instrument.
Un petit gain en résolution par rapport au C11 car les images
sont si fines que l'étoile entre facile dans le fente de 23 microns (R = 700 à 750) (pas eu
le temps de monter une 18 microns, cela aurait été un peu mieux) :

Spectrum taken with Takahashi FSQ85ED astropgraph and an Alpy spectrograph
(resultat more sharp compared to C11 because the star apparent disk is small
compared to 23 microns slit - concerning this point thank to small telescope!) :


Image

(pose de 8 x 300 sec.)

Le champ fait avec le même setup pour donner une idée de la situation de la nova :

The nova field taken with FSQ85ED and Alpy guifding system (30 sec) for help
to locate:


Image

Christian
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Re: PNV J20233073+2046041 mag 6.8

Postby Robin Leadbeater » Fri Jan 10, 2014 5:46 pm

Some nice work on Nova Del by a team from the University of Minnesota using a Star Analyser presented as a poster paper at the AAS meeting this week.
http://www.rspec-astro.com/download/AASNovaDel-2013.pdf

They also reference ARAS :-)

Thanks to Tom Field of RSpec for the head's up on this.

Cheers
Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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Re: PNV J20233073+2046041 mag 6.8

Postby Olivier GARDE » Fri Aug 28, 2015 1:40 pm

English version below :

Cela fait maintenant 2 ans que la Nova du Dauphin est apparu dans le ciel le 14 août 2013.
J'ai fait un petit poster pour montrer le premier spectre et le dernier acquis presque à la même date.
Le premier spectre a été fait avec un eshel R=11000, la cible était a mag. 6.3 et dernier avec un LISA R=500 la cible était à mag. 13.

It's been two years since the Nova Dauphin appeared in the sky on Aug. 14, 2013 .
I made a small poster to show the first and last spectrum taken almost on the same date .
The first spectrum was made with an Eshel R = 11000, the target was at mag. 6.3 And last spectrum with a LISA R = 500 and the target was at mag. 13 .

Image
LHIRES III #5, LISA, e-Shel, C14, RC400 Astrosib, AP1600
http://o.garde.free.fr/astro/Spectro1/Bienvenue.html
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Re: PNV J20233073+2046041 mag 6.8

Postby Paolo Berardi » Mon Aug 31, 2015 10:00 pm

A truly amazing poster of *your* nova, Olivier! ;)

I never thought that we would have observed it two years later...

Thanks for sharing!

Paolo
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