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

We report on our findings based on the analysis of observations of the TypeII-L supernova LSQ13cuw within the framework of currently accepted physicalpredictions of core-collapse supernova explosions. LSQ13cuw was discoveredwithin a day of explosion, hitherto unprecedented for Type II-L supernovae.This motivated a comparative study of Type II-P and II-L supernovae withrelatively well-constrained explosion epochs and rise times to maximum(optical) light. From our sample of twenty such events, we find evidence of apositive correlation between the duration of the rise and the peak brightness.On average, SNe II-L tend to have brighter peak magnitudes and longer risetimes than SNe II-P. However, this difference is clearest only at the extremeends of the rise time versus peak brightness relation. Using two differentanalytical models, we performed a parameter study to investigate the physicalparameters that control the rise time behaviour. In general, the modelsqualitatively reproduce aspects of the observed trends. We find that thebrightness of the optical peak increases for larger progenitor radii andexplosion energies, and decreases for larger masses. The dependence of the risetime on mass and explosion energy is smaller than the dependence on theprogenitor radius. We find no evidence that the progenitors of SNe II-L havesignificantly smaller radii than those of SNe II-P.

A comparative study of Type II-P and II-L supernova rise times as exemplified by the case of LSQ13cuw