The long-term spectroscopic misadventures of AG Dra with a nod toward   V407 Cyg: Degenerates behaving badly
  We present some results of an ongoing study of the long-term spectroscopic variations of AG Dra, a prototypical eruptive symbiotic system. We discuss the effects of the environment and orbital modulation in this system and some of the physical processes revealed by a comparison with the nova outburst of the symbiotic-like recurrent nova V407 Cyg 2010. 
S. N. Shore (1), K. Genovali (1, 2), G. M. Wahlgren (3,4) ((1) Dip. di   Fisica "Enrico Fermi", Univ. di Pisa/INFN-Pisa, (2)...
astro-ph.SR astro-ph.HE