Recurrent nova U Sco in eruption

Alerts and Monitoring of Novae
umberto sollecchia
Posts: 242
Joined: Tue Dec 30, 2014 3:25 pm

Re: Recurrent nova U Sco in eruption

Post by umberto sollecchia »

Caramba Joan! Exceptional spectrum.
Umberto
Hamish Barker
Posts: 226
Joined: Thu Jun 20, 2019 12:11 am

Re: Recurrent nova U Sco in eruption

Post by Hamish Barker »

great work Joan!

hopefully the compiled spectra will give someone opportunity to investigate the time evolution of the very interesting H alpha profiles.

It is clear here tonight in nelson, new zealand (but a lot of dew), so I will take a spectrum after I finish on suspected new nova asassn-22hw, if my equipment doesn't short circuit itself.
Joan Guarro Flo
Posts: 611
Joined: Thu Nov 03, 2011 8:50 pm

Re: Recurrent nova U Sco in eruption

Post by Joan Guarro Flo »

Robin, Umberto and Hamish,

You know that I only take advantage of the thoughts and procedures of other people, my only merit is to spend my time on it.

That is the star last night from the Piera and SMM observatories, I hope that you enjoy these graphics too.

Best wishes for all of you, Joan.
Attachments
U SCO PIERA.png
U SCO PIERA.png (29.25 KiB) Viewed 3008 times
U SCO SMM.png
U SCO SMM.png (26.65 KiB) Viewed 3008 times
U SCO COMPARA.png
U SCO COMPARA.png (31.32 KiB) Viewed 3008 times
2SPOT
Posts: 110
Joined: Wed Jul 07, 2021 8:40 am
Contact:

Re: Recurrent nova U Sco in eruption

Post by 2SPOT »

Here's the evolution of this novae on 4 days.
All spectra taken automatically from Chile (no human intervention except a text file with all targets coordinates) and soon an automatic process for the spectra process with ARP pipeline developed by Matthieu Le Lain (with spec INTI process), a great tool to do in fact automatic spectra (from acquisition to final graph).

Image
2SPOT : Southern Spectroscopic Project Observatory Team
Website : http://www.2spot.org - Observatory Site : Deep Sky Chile https://www.deepskychile.com/fr/
Suport our action : https://www.helloasso.com/associations/ ... mulaires/2
umberto sollecchia
Posts: 242
Joined: Tue Dec 30, 2014 3:25 pm

Re: Recurrent nova U Sco in eruption

Post by umberto sollecchia »

Bonjour à tous, la luminosité de la nova a baissé, elle est maintenant de magnitude 11, je l'ai donc observée avec le réseau 600l/mm toujours centré sur le H-alpha.
Umberto
usco_20220611_846_Umberto Sollecchia.png
usco_20220611_846_Umberto Sollecchia.png (41.64 KiB) Viewed 2950 times
Hamish Barker
Posts: 226
Joined: Thu Jun 20, 2019 12:11 am

Re: Recurrent nova U Sco in eruption

Post by Hamish Barker »

nice spectrum umberto.

It is interesting that the h alpha profile seems to be gradually transforming to a single peak, although that peak is somewhat offset to the blue side.
Joan Guarro Flo
Posts: 611
Joined: Thu Nov 03, 2011 8:50 pm

Re: Recurrent nova U Sco in eruption

Post by Joan Guarro Flo »

Caro Umberto,

I agree with Hamish, nice spectra ! I'll try to do it again tonight, the weather hasn't let me observe it these last two nights..

Joan.
Francois Teyssier
Posts: 1520
Joined: Fri Sep 23, 2011 1:01 pm
Location: Rouen
Contact:

Re: Recurrent nova U Sco in eruption

Post by Francois Teyssier »

Congratulations. Great results.

After two days issues (initially due to a bad header :x ) the asdb is updated: https://aras-database.github.io/database/usco.html
Please check for the sumitted spectra. Perhaps I missed some of them.

Sorry for the inconvenience.

François

PS: do not forget the very important monitoring of T CrB before its next nova outburst.
and RS Oph returning to quiescence after 2021 nova outburst.
Dubreuil Pierre
Posts: 202
Joined: Sat Oct 01, 2011 12:34 pm

Re: Recurrent nova U Sco in eruption

Post by Dubreuil Pierre »

Bonjour

Un peu en retard, U Sco le 12/06/2022 avec UVEX4 G300
_usco_f4_20220612_872_Pierre Dubreuil.png
_usco_f4_20220612_872_Pierre Dubreuil.png (10.04 KiB) Viewed 2808 times
Crop sur Ha
_usco_CropHa20220612_872_Pierre Dubreuil.png
_usco_CropHa20220612_872_Pierre Dubreuil.png (8.44 KiB) Viewed 2808 times

Pierre
Terry Bohlsen
Posts: 191
Joined: Thu Sep 29, 2011 7:40 am

Re: Recurrent nova U Sco in eruption

Post by Terry Bohlsen »

I have taken just 2 spectra of this as the weather hasn't been great. It has dimmed a lot and is now about mag 13. This means the S/N was low for the second spectrum. Taken with my LISA at R=1500
Terry
usco_20220615_514_TBohlsen.png
Terry Bohlsen
Armidale NSW
Australia
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