Classification Flashcards
1
Q
What is the first level of supernova classification?
A
Does it show hydrogen?
2
Q
What is the first sub-classification of Type 1a supernovae?
A
Based on the presence or absence of silicon or helium.
3
Q
What type(s) of supernovae is found in elliptical galaxies (old stellar populations)?
A
Only Type 1a (Thermonuclear) as they come from old low mass stars.
4
Q
What type(s) of supernovae is found in blue star-forming galaxies (young and old stellar populations)?
A
All types of supernovae.
5
Q
What is a homogeneous supernovae?
A
Type 1a - they come from old, low mass stars with the same progenitor, a hydrogen-less WD with mass 1.4M.
6
Q
What is a heterogeneous supernovae?
A
Core collapse SN - they arise from young, massive stars covering a large range of masses.
