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

SN 2002cx-like and SN Ia-CSM objects show similar early spectra and bothbelong to a young stellar population, suggesting that they could share the sameprogenitor origin. Adopting the framework of the common-envelope-wind (CEW)model developed in \citet{MENGXC17}, we here propose that both subclasses ofSNe Ia are caused by the explosion of hybrid carbon-oxygen-neon white dwarfs(CONe WDs) in single-degenerate systems, where SNe Ia-CSM explode in systemswith a massive common envelope (CE) of $\sim1~M_{\odot}$, while SN 2002cx-likeevents correspond to those events where most of the CE has been lost in a wind.Using binary-population-synthesis (BPS) calculations, we estimate a numberratio of SNe Ia-CSM to SN 2002cx-like objects between $\frac{1}{3}$ and$\frac{2}{3}$, consistent with observational constraints, and an overallcontribution from hybrid CONe WDs to the total SN Ia population that alsomatches the observed number from these peculiar objects. Our model predicts astatistical sequence of CSM density from SN Ia-CSM to SN 2002cx-like events andnormal SNe Ia, consistent with existing radio constraints. We also find a newsubclass of hybrid SNe which share the properties of Type II and Type Ia SNe,consistent with some observed SNe, which do not have a surviving companion. Insome cases these could even produce SNe Ia from apparently single WDs.

Do SN 2002cx-like and SN Ia-CSM objects share the same origin?