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

Mergers of neutron stars (NS) and white dwarfs (WD) may give rise toobservable explosive transient events. We use 3D hydrodynamical (SPH)simulations, as well as 2D hydrodynamical-thermonuclear simulations (using theFLASH AMR code) to model the disruption of CO-WDs by NSs, which produce fainttransient events. We post-process the simulations using a large nuclear networkand make use of the SuperNu radiation-transfer code to predict theobservational signatures and detailed properties of these transients. Wecalculate the light-curves (LC) and spectra for five models of NS - CO-WDmergers. The small yields of Ni56 (few x 0.001Msun) results in faint,rapidly-evolving reddened transients (RRTs) with B (R) - peak magnitudes of ~-12 (-13) to ~ -13 (-15), much shorter and fainter than both regular andfaint/peculiar type-Ia SNe. We show that the spectra of RRTs share somesimilarities with rapidly - evolving transients such as SN2010x, though RRTsare significantly fainter, especially in the I/R bands, and show far strongerSi lines. We estimate that the upcoming Large Synoptic Survey Telescope coulddetect RRTs at a rate of ~ 10 - 70 yr^-1, through observations in the R/Ibands.

Faint rapid red transients from Neutron star -- CO white-dwarf mergers