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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The energy liberated by fallback accretion has been suggested as a possibleengine to power hydrogen-poor superluminous supernovae. We systematicallyinvestigate this model using the Bayesian light-curve fitting code MOSFiT(Modular Open Source Fitter for Transients), fitting the light curves of 37hydrogen-poor superluminous supernovae assuming a fallback accretion centralengine. We find that this model can yield good fits to their light curves, witha fit quality that rivals the popular magnetar engine models. Examining ourderived parameters for the fallback model, we find the total energyrequirements from the accretion disk are estimated to be 0.002 - 0.7 Msun c^2.If we adopt a typical conversion efficiency ~ 1e-3, the required mass toaccrete is thus 2 - 700 Msun. Many superluminous supernovae, therefore, requirean unrealistic accretion mass, and so only a fraction of these events could bepowered by fallback accretion unless the true efficiency is much greater thanour fiducial value. The superluminous supernovae that require the smallestamounts of fallback mass still remain to be the fallback accretion poweredsupernova candidates, but they are difficult to be distinguished solely bytheir light curve properties.

Systematic investigation of the fallback accretion powered model for hydrogen-poor superluminous supernovae