R. Chiba

activity

20232026

most citedA thermonuclear supernova interacting with hydrogen- and helium-deficient circumstellar material. SN 2020aeuh as a SN Ia-CSM-C/O?

5 citations · 10 across the 6 of their papers we have counts for

collaborators

Showing 2026Show all

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astro-ph.HE2026

The transitional Type Ibn/IIn SN 2022pda, with pre-explosion outbursts and a double-peaked light curve

Y. -Z. Cai, A. Pastorello, R. Chiba +65

We report the results of a photometric and spectroscopic follow-up campaign of the unusual interacting supernova (SN) 2022pda. Precursor variability lasting $\sim 100$ days is obse…

astro-ph.HE2026

Circumbinary Discs as the Origin of Circumstellar Material around Interacting H-poor Supernovae and Fast Blue Optical Transients

Ryotaro Chiba, Semih Tuna, Brian D. Metzger +1

Around 10 % of hydrogen-poor supernovae explode inside compact ( $\sim 1 0^{15}$ cm), massive ( $\sim 0.1 M_{⊙}$ ) circumstellar material (CSM), signalling an episode of e…