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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Recent supernova searches revealed a number of fast-evolving luminoustransients. We perform radiation hydrodynamic simulations of light curves ofseveral models of supernova from super--asymptotic giant branch (super-AGB,SAGB) stars with low mass envelopes ($M_{\rm env}$ $\sim$ $0.05-1.25$$M_{\odot}$). The differences in the light curves found among the models areused to link the observed events to the most appropriate models. In particular,we propose that KSN 2015K is an electron-capture supernova. We assume"optically" thick CSM around SAGB and the circumstellar interaction powers thepeak luminosity of the light curve with a short rise time. The faint tail mightbe influenced by the spin-down luminosity of a newborn Crab-like pulsar. Ourfits indicate an ejecta mass of $0.02-0.05$ $M_{\odot}$, a circumstellar medium(CSM) mass of $0.10-0.12$ $M_{\odot}$, a radius of the CSM photosphere $\sim$10$^{14}$ cm, a kinetic energy of $\sim$ 3 $\times$ 10$^{50}$ erg, aphotospheric velocity $v_{\rm ph} \gtrsim 10,000$ km s$^{-1}$ and a pulsartotal spin energy ($2.5-4$) $\times$ 10$^{49}$ erg.

Light curve modeling of fast-evolving supernova KSN 2015K: explosion in circumstellar matter of Super-AGB progentor