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

The progenitor systems accounting for explosions of type Ia supernovae (SNeIa) is still under debate. Symbiotic channel is one of the possible progenitorscenarios, in which the WDs in these systems increase in mass through windaccretion from their red giant companions. The mass-loss processes of thegiants in the symbiotic systems could produce amount of circumstellar medium(CSM), and the detections of the interaction signals between SN ejecta and CSMcan be used as an ideal way to distinguish the different progenitor models.However, the density distribution and geometric structure of the CSM around thesymbiotic systems remain highly uncertain. By assuming that the tidal torquefrom binary interaction can increase the mass-loss rate of the red giant andcause the stellar wind concentrate towards the equatorial plane, we provide asimplified method to estimate the density and the degree of deviation fromspherical symmetry of the CSM. Based on the calculations of the binaryevolutions of symbiotic systems using stellar evolution code MESA, we obtainedthe parameter space for producing SNe Ia. We found that SNe Ia could originatefrom symbiotic systems with massive carbon-oxygen white dwarfs (CO WDs), whilethe half-opening angle of the stellar wind from red giant towards the WD varieswith the binary evolution, resulting in the formation of surrounding CSM withdifferent geometric structures. The corresponding properties of ejecta-CSMinteractions may be examined by the spectropolarimetry observations in thefuture, from which one may find additional relationship between circumstellarenvironment of SNe Ia and their progenitor systems.

The effect of aspherical stellar wind of giant stars on the symbiotic channel of type Ia supernovae