Question: what nuclear reactions are going on?
Question: What is the brighter sequence?
Question: Where do we find binary systems on HR diagrams?
CMD with evolutionary tracks and ages
Question: where are the stars that evolved off the main sequence?
Question: How might the HR diagram of a galaxy be different?
CMD of Local Group dwarf galaxy Leo I
Models of Leo I CMD with different ages
Star formation history of Leo I
Radioactive Decay Core Collapse and Pre-Supernova
Question: What determines how much closer particles need to be for neutron degeneracy?
Answer: Ratio of neutron to electron masses
Question: What conditions are necessary for neutrinos to transfer heat effectively?
Fig from Fryer et al 2002: Isosurface of material with radial velocities of 1000 km s-1 for models A, B, and C. The isosurface outlines the outward moving convective bubbles. The open spaces mark the downflows.
Figure of velocity flows: Slice of supernova model, colored by its entropy and showing velocity vectors. The cold, low-entropy material flows downward as the high-entropy material bubbles upward.