ASTR 5460, Wed. Apr. 9, 2003
Reminders/Assignments
Chapter 9 Longair: Thermal History of the Universe

Reminders/Assignments
Astro-ph on Friday (10-15 minutes total)
Physics Today Articles (they’re good!)
Research Homework Update

Sloan Post-starburst Quasars
Background in papers/proposals
Tasks
Identify from the SDSS EDR spectra (two levels) – lots of effort now vs. later
Morphology from SDSS images (two levels)
Bruzual & Charlot ISB modeling
Quasar measurements, derived properties
Compiling statistics, correlation analyses (lots of effort later vs. now)
Oversight, science, figures/tables, etc.
Will require individual meetings – schedule ASAP

Thermal History of the Universe

Thermal History of the Universe

Thermal History of the Universe

Thermal History of the Universe

Thermal History of the Universe

Thermal History of the Universe

Matter/Radiation Content of the Universe

Matter/Radiation Content of the Universe

Matter/Radiation Content of the Universe

Matter/Radiation Content

Present photon-to-baryon ratio

Thermal History of the Universe

Important Epochs, Detail

Important Epochs, Detail

Important Epochs, Detail

Important Epochs, Detail

Important Epochs, Detail

Important Epochs, Detail

Important Epochs, Detail

Sound Speed with epoch

Sound Speed with epoch

Sound Speed with epoch

Early Epochs