T CrB before its new nova event
Posted: Tue Jan 11, 2022 11:48 am
T CrB is a bright recurrent symbiotic nova (V ~ 10 in quiescence and up to mag 2 during outbursts in 1866 1946)
The system could produce a new nova event at any time from now.
B. Schaefer predicts the outburst in 2023.6 +/- 1.0.
The current luminosity curve especially in B band mimics perfectly that observed before 1946’ outburst.
See: http://www.astrosurf.com/aras/novae/Inf ... 019-04.pdf page 47 ... And B. Schaeffer’s text p. 51.
Steve Shore announces an observation of the target by HST STIS in UV on 1 Feb.
And requires spectra (low to medium resolution) and especially flux calibrated spectra around and at this date.
Send spectra to francoismathieu.teyssier at gmail.com for inclusion in the database: https://aras-database.github.io/database/tcrb.html
Moreover, T CrB offers a unique chance to get spectra a RN must before and during the outburst if we are able (and we are! to produce a high cadency monitoring from now.
François Teyssier
With my Best Wishes for the New Year
The system could produce a new nova event at any time from now.
B. Schaefer predicts the outburst in 2023.6 +/- 1.0.
The current luminosity curve especially in B band mimics perfectly that observed before 1946’ outburst.
See: http://www.astrosurf.com/aras/novae/Inf ... 019-04.pdf page 47 ... And B. Schaeffer’s text p. 51.
Steve Shore announces an observation of the target by HST STIS in UV on 1 Feb.
And requires spectra (low to medium resolution) and especially flux calibrated spectra around and at this date.
Send spectra to francoismathieu.teyssier at gmail.com for inclusion in the database: https://aras-database.github.io/database/tcrb.html
Moreover, T CrB offers a unique chance to get spectra a RN must before and during the outburst if we are able (and we are! to produce a high cadency monitoring from now.
François Teyssier
With my Best Wishes for the New Year