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Atlas of photometric and spectroscopic daily monitoring of the very slow Nova Cas 2021 (=V1405 Cas) during the first 660 days of its outburst
P. Valisa, U. Munari, S. Dallaporta +2
Nova Cas 2021 erupted on 18 March 2021, reaching naked-eye brightness when passing through photometric maximum 53 days later. We describe our ~daily monitoring of its evolution, co…
Photometry and spectroscopy of the new symbiotic star 2SXPS J173508.4-292958
U. Munari, P. Valisa, A. Vagnozzi +3
We present and discuss the results of our photometric and spectroscopic monitoring of 2SXPS J173508.4-292958 carried out from April to August 2020. This X-ray source, in the foregr…
The 2018 eruption and long term evolution of the new high-mass Herbig Ae/Be object Gaia-18azl = VES 263
U. Munari, V. Joshi, D. P. K. Banerjee +9
We have been monitoring, at high cadence, the photometric and spectroscopic evolution of VES 263 following the discovery in 2018 of a brightening labeled as event Gaia-18azl. VES 2…
BVRI lightcurves of supernovae SN 2011fe in M101, SN 2012aw in M95, and SN 2012cg in NGC 4424
U. Munari, A. Henden, R. Belligoli +4
Accurate and densely populated BVRcIc lightcurves of supernovae SN 2011fe in M101, SN 2012aw in M95 and SN 2012cg in NGC 4424 are presented and discussed. The SN 2011fe lightcurve…
Formation of a disk structure in the symbiotic binary AX Per during its 2007-10 precursor-type activity
A. Skopal, T. N. Tarasova, Z. Cariková +12
AX Per is an eclipsing symbiotic binary. During active phases, deep narrow minima are observed in its light curve, and the ionization structure in the binary changes significantly.…