spectro-aras.com

Hello all,

RS Oph is back in my morning sky !
Here is two new spectra obtained with my Alpy 600 :

The first one, the 22th of April at 3 h 10 TU (resolution of 521, JJ = 2459691.6316) and an acquisition time of 30 min s (3 x 600 s) :
The second one, the 1st of May at 1 h 50 TU (resolution of 529, JJ = 2459700.5766) and an acquisition time of 60 min s (6 x 600 s) :
In the graph below, the spectra have been normalized to the continuum.
We can note that the relative intensity of the HeII 4686 A line is very low compared to that of the Hbeta line.

Clear skies to all !!

Christophe BOUSSIN

Hello all,

A new paper on the RS Oph outburst has just been published :

"The 2021 outburst of the recurrent nova RS Ophiuchi observed in X-rays by the Neil Gehrels Swift Observatory: a comparative study"
K.L. Page , A.P. Beardmore , J.P. Osborne , U. Munari , J.-U. Ness , P.A. Evans , M.F. Bode , M.J. Darnley , J.J. Drake , N.P.M. Kuin , T.J. O’Brien , M. Orio, S.N. Shore, S. Starrfield and C.E. Woodward.

https://arxiv.org/pdf/2205.03232.pdf

You can find a comparison of the 2006 and 2021 outbursts and a discussion on the evolution of the [Fe X] line at 6375 A (paragraph 6.3 for example and figure 14).

See also animation page 10 in this post (Robin Leadbeater) :

http://www.spectro-aras.com/forum/downl ... hp?id=8203

Christophe BOUSSIN

Hello,

RS Oph always speaks things if you know how to read them..

Joan Guarro.