Symbiotic recurrent nova RS Oph in ourburst !!!

[Christophe Boussin]

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) :

RS Oph on April 22th, 2022

_rsoph_20220422_132_Christophe Boussin_3700_7565.png (98.63 KiB) Viewed 8749 times

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) :

RS Oph on May 1st, 2022

_rsoph_20220501_077_Christophe Boussin_3700_7565.png (86.54 KiB) Viewed 8749 times

In the graph below, the spectra have been normalized to the continuum.

RS Oph on April 22th and May 1st 2022 (tentative identification of some lines from PlotSpectra)

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

[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

[Joan Guarro Flo]

Hello,

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

Joan Guarro.