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Radio interferometric imaging of RS Oph bipolar ejecta for the 2021 nova outburst
U. Munari, M. Giroletti, B. Marcote +5
The recurrent nova and symbiotic binary RS Oph erupted again in August 2021 for its eighth known outburst. As part of a multi-epoch and frequency campaign, we observed RS Oph 34 da…
Flickering returns as RS Oph reestablishes quiescent conditions following its 2021 nova outburst
Ulisse Munari, Fulvio Tabacco
RS Oph has persistently displayed flickering at optical wavelengths when observed away from its repeating nova outbursts. During the 2006 eruption the flickering disappeared, and t…
The young Galactic cluster NGC 225: binary stars content and total mass estimate
L. Yalyalieva, G. Carraro, E. Glushkova +2
Galactic star clusters are known to harbour a significant amount of binary stars, yet their role in the dynamical evolution of the cluster as a whole is not comprehensively underst…
THA 15-31: Discovery with VLT/X-Shooter and Swift/UVOT of a new symbiotic star of the accreting-only variety
U. Munari, J. K. Alcalà, A. Frasca +4
We report the discovery and characterization of a new symbiotic star of the accreting-only variety, which we observed in the optical/near-infrared (NIR) with VLT/X-Shooter and in t…
The 2021 outburst of RS Oph: a pictorial atlas of the spectroscopic evolution. II. From day 19 to 102 (solar conjunction)
Ulisse Munari, Paolo Valisa
We present the second part (days 19 to 102) of our high-resolution Echelle atlas of the spectral evolution of RS Oph during the 2021 nova outburst. Some quick conclusions that can…