We present a new census of Galactic and extragalactic symbiotic stars (SySts). This
compilation contains 323 known and 87 candidate SySts. Of the confirmed SySts, 257 are …

We present early high-resolution spectroscopic observations of the nova V1369 Cen. We
have detected an absorption feature at 6695.6 Å that we have identified as blueshifted 7 Li i …

The recurrent nova RS Oph underwent a new outburst on 2021 August 8, reaching a visible
brightness of V= 4.8 mag. Observations of the 2021 outburst made with the high-resolution …

Aims. The aims of our study are to improve the orbital elements of the giant and to derive the
spectroscopic orbit for the white dwarf companion of the symbiotic system RS Oph. Spectral …

Aims. Recurrent nova systems like RS Oph have been proposed as a possible channel for
type Ia supernova (SN) explosions based on the high mass of the accreting white dwarf …

The recurrent nova RS Oph experienced an outburst in 2006, 21 years after its previous
explosion in 1985, as expected. It was observed at almost all wavelengths, and important …

We have identified a first group of 33 new candidates for symbiotic stars (SySt) of the
accreting-only variety among the 600 255 stars so far observed by the GALactic …

Context. The nova outburst of V407 Cyg in 2010 Mar. 10 was the first observed for this star
but its close resemblance to the well known symbiotic-like recurrent nova RS Oph suggests …

The elemental abundances of symbiotic giants are essential to address the role of chemical
composition in the evolution of symbiotic binaries, to map their parent population, and to …

The study of symbiotic systems is of considerable importance in our understanding of binary
system stellar evolution in systems where mass-loss or transfer takes place. Elemental …