3 papers
astro-ph.SR2026
The hybrid Nova Vul 2024 (=V615 Vul)
Paolo Valisa, Ulisse Munari, Irene Albanese
We present daily optical, absolute-fluxed spectroscopy of the heavily reddened Nova Vul 2024 (=V615 Vul), obtained in both low- and high-resolution echelle modes from discovery on…
astro-ph.SR2025
T CrB: overview of the accretion history, Roche-lobe filling, orbital solution, and radiative modeling
U. Munari, F. Walter, N. Masetti +14
(abridged) We aim to derive a robust estimate of the most important parameters describing the physical nature of T CrB, trace the accretion history onto its white dwarf, and accoun…
astro-ph.EP2025
Alkali phenoxides in comets
M. Fulle, P. Molaro, A. Rotundi +4
Potassium was first detected in spectra of the sungrazer comet Ikeya-Seki at the heliocentric distance rh = 0.15 au and, 48 years later, in comets PanSTARRS and ISON at rh = 0.46 a…