Free Access
Table 2.
Summary of speculative properties for the Type II SN progenitors originating from each evolutionary channel.
| (Effectively) | Mass | MS+MS | postMS+MS | Reverse | |
|---|---|---|---|---|---|
| single stars | gainers | mergers | mergers | mergers | |
| Computed | 55% | 14% | 6% | 14% | 11% |
| fraction (a) | (47%–67%) | (3%–18%) | (1%–17%) | (6%–39%) | (1%–16%) |
| SN Type (b) | II-P, II-L? | II-P, IIn? | II-P, IIn? | II-P?, 87A-like?, IIn?, | II-P?, IIn??, II-L? |
| II-L??, superluminous?? | |||||
| CSM of binary origin | No | No | No | No? | maybe |
| at explosion (c) | |||||
| Surrounding population | Normal | Far away | Older | Older | Possibly |
| of progenitor (d) | (ejected) | much older | |||
| Binary companion | No | No | No | No | No |
| at explosion (e) | (unless in wide binary) | (ejected) | (merged) | (merged) | (merged) |
| Rotation, | Birth | Enhanced | Enhanced rotation, | ? | ? |
| magnetic field (f) | rotation | (& magnetic field?) | |||
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.