4 papers
The nearby He-rich superluminous supernova SN 2021bnw during photospheric phases
A. Fiore, A. Kozyreva, L. Yan +40
Aim. We present and interpret the data of the nearby hydrogen-deficient but helium-rich superluminous supernova SN 2021bnw which reached a magnitude of -20.7 at maximum luminosity…
Helium superluminous SN 2021bnw : an explosion of a massive star with a pre-outburst
Alexandra Kozyreva, Matteo Bugli, Alexey Mironov +1
Superluminous supernovae (SLSNe) remain an intriguing topic in supernova (SN) transient astronomy. While the majority of SLSNe are shown to be explained by energy streaming from th…
Microlensing by Cluster of Primordial Black Holes
K. A. Toshchenko, P. V. Baklanov, K. M. Belotsky +1
Numerous microlensing survey programs have constrained the possibility of dark matter existing in the form of compact objects within the Galactic halo. These constraints on the dar…
SN 2023ixf -- an average-energy explosion with circumstellar medium and a precursor
Alexandra Kozyreva, Andrea Caputo, Petr Baklanov +2
Abridged: The fortunate proximity of the SN2023ixf allowed astronomers to follow its evolution from almost the moment of the collapse of the progenitor's core. SN2023ixf can be exp…