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

We investigate explosive nucleosynthesis in a non-rotating 15$M_\odot$ starwith solar metallicity that explodes by a neutrino-heating supernova (SN)mechanism aided by both standing accretion shock instability (SASI) andconvection. To trigger explosions in our two-dimensional hydrodynamicsimulations, we approximate the neutrino transport with a simple light-bulbscheme and systematically change the neutrino fluxes emitted from theprotoneutron star. By a post-processing calculation, we evaluate abundances andmasses of the SN ejecta for nuclei with the mass number $\le 70$ employing alarge nuclear reaction network. Aspherical abundance distributions, which areobserved in nearby core-collapse SN remnants, are obtained for the non-rotatingspherically-symmetric progenitor, due to the growth of low-mode SASI. Abundancepattern of the supernova ejecta is similar to that of the solar system formodels whose masses ranges $(0.4-0.5) \Ms$ of the ejecta from the inner region($\le 10,000\km$) of the precollapse core. For the models, the explosionenergies and the \nuc{Ni}{56} masses are $ \simeq 10^{51} \rm erg$ and$(0.05-0.06) \Ms$, respectively; their estimated baryonic masses of the neutronstar are comparable to the ones observed in neutron-star binaries. Thesefindings may have little uncertainty because most of the ejecta is composed bymatter that is heated via the shock wave and has relatively definiteabundances. The abundance ratios for Ne, Mg, Si and Fe observed in Cygnus loopare well reproduced with the SN ejecta from an inner region of the $15\Ms$progenitor.

Explosive nucleosynthesis in the neutrino-driven aspherical supernova explosion of a non-rotating 15$M_{\odot}$ star with solar metallicity