Recurrent nova U Sco in eruption

[Hamish Barker]

wow the three-peaked H alpha and beta features are interesting. Three blobs of ejecta (two towards us, one away)?

And yes it is still raining here.

[2SPOT]

Others spectra taken last night and the evolution during this same night

[Robin Leadbeater]

wow the three-peaked H alpha and beta features are interesting. Three blobs of ejecta (two towards us, one away)?

(

A reference cited in the paper given in the Atel suggests rings

Emission-line profiles from model nova shells
C. D. Gill, T. J. O'brien
Monthly Notices of the Royal Astronomical Society, Volume 307, Issue 3, August 1999
https://academic.oup.com/mnras/article/307/3/677/961689

Cheers
Robin

[Terry Bohlsen]

I took a spectra last night with my LISA R~1500. The weather is very poor at present so follow up spectra is a bit hit and miss.
Very wide emissions at over 4000 km/s

Terry

[Hamish Barker]

the rain stopped and the clouds parted for a little while, so I got set up and managed 1x1200seconds.

could someone please post a link for where to upload in the database?

[Francois Teyssier]

The database is updated:
https://aras-database.github.io/database/usco.html

Sorry for the delay - I'm on holidays in a pure "white zone"

François

Olivier: j'ai bien reçu ton deuxième envoi.

[Forrest Sims]

Adding another night, here is a comparison of flux calibrated spectra over three nights as the V magnitude dropped from 7.957 +/- 0.072 to 10.267+/- 0.025 taken with a LISA and processed using ISIS.

Woody

[Hamish Barker]

Nice work woody!

[Joan Guarro Flo]

Hello at all,

After some bad weather days, finaly I could observe U Sco. And I hope repeat it tonight..

Cheers, Joan Guarro.

[Robin Leadbeater]

Impressive to get this detail at high resolution and mag 10