Supernovae Observed: Remnants

• remanants -- Veil nebula: zoom out, in, and further in; Vela nebula composite
• Heavy element synthesis: observed in Cas A; the circle, the circle of life; we are made of star-stuff
• radioactivity: ⁴⁴Ti in Cas A remnant, all-sky map of ²⁶Al

Supernova Nucleosynthesis

• modelling strategies
• explosive nucleosynthesis
• supernova yields: compared to solar (Sukhbold+ 2016)

Nearby Supernovae: Damage and Detection

• threat: ionizing radiation and ozone damage
• signature: live radioactivity deposit by blast
• evidence: ⁶⁰Fe pulse in deep ocean crusts, the Moon, and Antarctic snow

Supernovae in the Great Survey Era

• telescope field of view and pointed vs survey observations
• LSST: artist's conception, real-time webcam, supernova search engine

The Central Object

• what survives collapse? Baade & Zwicky (1934)
• LGM-1? Hewish, Bell, et al (1968)
• pulses sonified
• implications of short periods