ASTR 5460, Fri. Apr. 25, 2003
Reminders/Assignments
Finish Chapter 10 from Longair: Nucleosynthesis in the Early Universe

Reminders/Assignments
FIRST/NVSS and 2MASS reports Wed.
Discussion/comments/questions regarding the Physics Today Articles?
Research Homework Update
Dan finished phase 1, will start phase 2
Chris, Sey, and Cassandra primary now
Presentation topics
Read Shields “A Brief History of AGN” astro-ph/9903401
astro-ph papers at end of class if time

Presentation Topics
Last week of class, 2 Wed., 4 Fri.
Plan for 20 minutes, plus questions.
Web-based powerpoint encouraged.
Topics:
Gunn-Peterson Test and Reionization
Supernovae and the Accelerating Universe
Weighing Supermassive Black Holes
The Hubble Deep Fields
Sub-millimeter (SCUBA) Galaxies
X-ray Background

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

How the Cosmology Game is Played From Here...

What Cosmologists “Do”

What Cosmologists “Do”

What Cosmologists “Do”

What Cosmologists “Do”

What Cosmologists “Do”

Jean’s Instability

Jean’s Instability

Jean’s Instability

Jean’s Instability

Jean’s Instability in an Expanding Medium

Jean’s Instability in an Expanding Medium

Other issues

Other issues

Jean’s Mass, Horizon mass, with scale factor

What goes wrong with baryon-only cosmologies?

Dark Matter and Galaxy Formation

Hot Dark Matter

Cold Dark Matter

Spectrum of Initial Fluctuations

The Hubble Deep Field

Evidence for “Hierarchical” Galaxy Formation from the HDF

What this might look like
Movie simulation of galaxy formation via assembly of small pieces (courtesy of Space Telescope Science Institute): http://imgsrc.stsci.edu/op/pubinfo/mpeg/galaxies.mpg

Structure Simulations

Structure Simulations

Concluding Remarks
Chapter 15 covers the temperature fluctuations in the cosmic microwave background radiation.
Suggest reviewing the WMAP papers/webpages, Wayne Hu’s website, would be valuable.  Links in Feb. lectures.

Concluding Remarks
Chapter 16 covers the “dark ages,” mostly through theory and simulation.
Chapter 17 is galaxies and AGN, through cosmic epoch (k-corrections, mass, counts, evolution, etc.).
Chapter 18 focuses on star formation and element formation as a function of redshift.
Chapter 19 discusses the IGM.  The Gunn-Peterson talk should hit on this.  In general, talks will cover the above topics at some level.

Chapter 20: Final Things
Lots of juicy stuff here that Longair placed outside of the scope of the course.  Primary one in my mind is inflation, although magnetic fields, etc., are also important and interesting.

Next Week