English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Explosion mechanism of core-collapse supernovae is not fully understood yet.In this work, we give constraints on the explosion timescale based on $^{56}$Nisynthesized by supernova explosions. First, we systematically analyzemulti-band light curves of 82 stripped-envelope supernovae (SESNe) to obtainbolometric light curves, which is among the largest samples of the bolometriclight curves of SESNe derived from the multi-band spectral energy distribution.We measure the decline timescale and the peak luminosity of the light curvesand estimate the ejecta mass ($M_{\rm ej}$) and $^{56}$Ni mass ($M_{\rm Ni}$)to connect the observed properties with the explosion physics. We then carryout one-dimensional hydrodynamics and nucleosynthesis calculations, varying theprogenitor mass and the explosion timescale. From the calculations, we showthat the maximum $^{56}$Ni mass that $^{56}$Ni-powered SNe can reach isexpressed as $M_{\rm Ni} \lesssim 0.2 \ M_{\rm ej}$. Comparing the results fromthe observations and the calculations, we show that the explosion timescaleshorter than 0.3 sec explains the synthesized $^{56}$Ni mass of the majority ofthe SESNe.

Constraints on Explosion Timescale of Core-Collapse Supernovae Based on Systematic Analysis of Light Curves