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PNV J18033275-2816054
Posted: Tue Sep 29, 2015 9:03 pm
by Olivier GARDE
This night I try to do a spectrum of this nova with my eshel spectrograph R=11000 and an Astrosib telescope (RC400) and ATIK 460EX CCD use in binning 2x2.
The target was very low in the sky (only 10 degrees)
Here's a graph of H alpha profil : 9 exposures of 10 minutes each
The radial velocity of the nova expansion is about 870 Kms/s
Re: PNV J18033275-2816054
Posted: Wed Sep 30, 2015 8:11 am
by Terry Bohlsen
This is my attempt from last night. Much easier with a LISA.
There are lots of strong absorption features still.
Terry
- _novasgr2015no3_20150929_473_TBohlsen.png (6.73 KiB) Viewed 18383 times
Re: PNV J18033275-2816054
Posted: Wed Sep 30, 2015 4:46 pm
by Francois Teyssier
Congratulations for the spectra.
Still in the fire ball stage, thick wind
Terry, what is the altitude of the nova for you ?
A new page is ready in the data base for your spectra
Please use Nova Sgr 2015 C as object name
All the best,
François
Re: PNV J18033275-2816054
Posted: Thu Oct 01, 2015 8:18 am
by Olivier GARDE
Last night, I tried again to make a spectrum of this nova, but there were many clouds on the horizon.
Here's the result only for order 34 H Alpha (there is nothing usable on other orders) very noisy
We can seen that the P Cyg profil has disappeared and H Alpha emission line is more stronger.
Re: PNV J18033275-2816054
Posted: Thu Oct 01, 2015 12:06 pm
by Terry Bohlsen
Francois Teyssier wrote:Congratulations for the spectra.
Still in the fire ball stage, thick wind
Terry, what is the altitude of the nova for you ?
A new page is ready in the data base for your spectra
Please use Nova Sgr 2015 C as object name
All the best,
François
Francois
The nova was at about airmass 1.5
It will be able to follow it of about a month before it gets too low.
Im away from home til Monday and will be able to send you the data then.
Should we use the new name V5669 Sgr that has just been announced?
Terry
Re: PNV J18033275-2816054
Posted: Sun Oct 04, 2015 8:44 pm
by umberto sollecchia
Salut, La nuit dernière, le temps a permis l'observation de cette target.
Placez le profil spectral.
- Profilo_PNVJ 18033275-2816054.png (7.36 KiB) Viewed 18178 times
Cordialemente Umberto
Re: PNV J18033275-2816054
Posted: Tue Oct 06, 2015 9:53 am
by Terry Bohlsen
Big change in 5 days. Spectra from 5/10 with my LISA.
- _novasgr2015c_20151005_431_TBohlsen.png (5.35 KiB) Viewed 18104 times
Re: PNV J18033275-2816054
Posted: Tue Oct 06, 2015 10:34 am
by umberto sollecchia
Bonjour à tous, voici un nouveau profil et un comparateur où vous pouvez voir les rapides variations spectrales
- Profilo Nova Sgr 2015 nr3.png (7.1 KiB) Viewed 18060 times
- Comparazione.png (9.48 KiB) Viewed 18060 times
Cordialement Umberto
Re: PNV J18033275-2816054
Posted: Wed Oct 07, 2015 11:06 pm
by umberto sollecchia
Salut, placer un nouveau profil de la nouvelle observée dans la soirée du 10.07.2015.
- Profilo nova sgr 2015 nr3.png (6.58 KiB) Viewed 18018 times
Cordialement Umberto
Re: PNV J18033275-2816054
Posted: Wed Oct 21, 2015 5:51 pm
by Vikrant Agnihotri
Hello to all
The spectra of Nova Sgr2015 No3 are attached
Vikrant, India