vice.sources¶
The VICE dataframe: nucleosynthetic sources
Stores the dominant astrophysical enrichment channels of each element.
These values are adopted from Johnson (2019) 1. Stored values are of
type list
, elements of which are of type str
.
- “BBN”: Big Bang Nucleosynthesis
A statistically significant portion of this element’s present-day abundances was present prior to the onset of star formation in the universe.
- “CCSNE”: Core Collapse Supernovae
A statistically significant portion of this element’s present-day abundances is due to massive star explosions.
- “SNEIA”: Type Ia Supernovae
A statistically significant portion of this element’s present-day abundances is due to white dwarf explosions.
- “AGB”: Asymptotic Giant Branch Stars
A statistically significant portion of this element’s present-day abundances is due to synthesis in AGB stars.
- “NSNS”: Neutron Star Mergers, R-process Nucleosynthesis
A statistically significant portion of this element’s present-day abundances is due to neutron star mergers, or other astrophysical sites of r-process nucleosynthesis.
Indexing¶
str
[case-insensitive]The symbol of a chemical element as it appears on the periodic table.
Item Assignment¶
This instance of the VICE dataframe does not support item assignment.
Functions¶
keys
todict