Re: Alert! Nova Cas 2021 mag 9
Posted: Tue Mar 30, 2021 11:56 am
Another peculliar nova
Plateau at maximal luminosity, no jitters or oscillations at the date.
The various emission lines remain strong.
He I lines persist.
Variation of a few lines from Echelle spectra secured by Joan Guarro and François Teyssier at the remote station SMM-SP and Olivier Garde (2021-03-28.145)
Note the very fast changes in the absorption profiles in less than 1 day (spectra obtained on March, 28th.
Echelle spectrum secured by F. Teyssier with the remote station SMM-SP using the new echelle spectrograph designed and build by Joan Guarro:
It works well!
More details about this new wonderful tool: http://spectro-aras.com/forum/viewtopic ... 7&start=40
The various identification of lines are correct.
Note that even in low resolution spectra one can add Si II
Plateau at maximal luminosity, no jitters or oscillations at the date.
The various emission lines remain strong.
He I lines persist.
Variation of a few lines from Echelle spectra secured by Joan Guarro and François Teyssier at the remote station SMM-SP and Olivier Garde (2021-03-28.145)
Note the very fast changes in the absorption profiles in less than 1 day (spectra obtained on March, 28th.
Echelle spectrum secured by F. Teyssier with the remote station SMM-SP using the new echelle spectrograph designed and build by Joan Guarro:
It works well!
More details about this new wonderful tool: http://spectro-aras.com/forum/viewtopic ... 7&start=40
The various identification of lines are correct.
Note that even in low resolution spectra one can add Si II