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20002026
most citedOptical and Infrared Spectroscopy of the type IIn SN 1998S : Days 3-127

206 citations · 565 across the 15 of their papers we have counts for

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astro-ph.HE2024

Puzzle of [Ar II] 7 mcm line broad component of SN 1987A

Nikolai N. Chugai, Victor P. Utrobin

We explore the origin of the broad component of the [Ar II] 7 mcm line emission related to the ejecta excitation by the neutron star of SN 1987A. We argue that the line broad wings…

astro-ph.HE2024

Origin of broad He II 4686Å emission in early spectra of type IIP supernovae

Nikolai Chugai, Victor Utrobin

We propose a model for the origin of the broad He II 4686A emission in the early spectrum of type II SN~2020jfo. The 4686A line is emitted presumably by dense fragments embedded in…