Thank to all,
but the Letter is only the showcase, the most important are the spectra obtained by the team and gathered in the database
James:
Symbiotics (about 250 detected in the galaxy) are considered as excellent laboratories for many astrophysical phenomenon: accretion disks, wind from red giants, jets, hydrogen burning at the surface of white dwarfs, ...
About fifty are bright enough for amateur spectroscopy.
The orbital period (+++ 100 days) and time scale evolution (few days) allows a monotoring at a cadency of about 1/week or 1/month
For several objects, especially in high state, the time scale of variations become as low as day, hour or even minutes (for instance CH Cygni, V694 Mon)
At date, 4 publications are based at least partially spectra gathered by the team, and several others (CH Cyg, R Aqr, AG Dra ...) are under preparation
Recent outburst activity of the super-soft X-ray binary AG Draconis
Merc, J.; Gális, R.; Leedjärv, L.
http://adsabs.harvard.edu/abs/2017CoSka..47..192M
2017-10
New outburst of the symbiotic nova AG Peg after 165 years
A. Skopal, S. Yu. Shugarov, M. Sekeráš, M. Wolf, T. N. Tarasova, F. Teyssier, M. Fujii, J. Guarro, O. Garde, K. Graham, T. Lester, V. Bouttard, T. Lemoult, U. Sollecchia, J. Montier, D. Boyd
https://arxiv.org/pdf/1705.00076.pdf
2017-04
Active phases and flickering of a symbiotic recurrent nova T CrB
Ilkiewicz, Krystian; Mikolajewska, Joanna; Stoyanov, Kiril; Manousakis, Antonios; Miszalski, Brent
http://adsabs.harvard.edu/abs/2016arXiv160706804I
2016-07
Swift observations of the 2015 outburst of AG Peg – from slow nova to classical symbiotic outburst
Ramsay, Gavin; Sokoloski, J. L.; Luna, G. J. M.; Nuñez, N. E.
Monthly Notices of the Royal Astronomical Society, vol. 461, issue 4, pp. 3599-3606
François Teyssier