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Astro 250
Advanced Topics in Modern Cosmology
(Spring 2004)
Time/Place: Monday 1:10-4pm; Campbell 501
Instructor:
Chung-Pei Ma
Office: 641B Campbell Hall
Phone: (510)642-4850
Fax: (510)642-3411
Office Hours: 3-4pm May 6
Format:
This course will center on discussions of journal and
review articles.
A pair of students will be assigned to present each
topic and lead the discussions.
Grading:
class attendance and participation
presentation
Topics:
1. Very Lumpy Universe -- Nonlinear gravitational collapse
-
Jan 26 class:
-
Review density perturbations;
N-point statistics; linear vs nonlinear clustering;
introduction to the halo model
Reading for Jan 26-Feb 2:
- 1. Nonlinear halo model: Ma and Fry (2000) "Deriving the Nonlinear Cosmological Power Spectrum and Bispectrum from Analytic Dark Matter Halo Profiles and Mass Functions"
- 2. Cosmological simulations: Review article
by
Ed Bertschinger (1998) : "Simulations of Structure Formation
in the Universe"
Feb 2 class:
-
Joe Converse : cosmological simulations: Tree, PM, P3M, SPH, Eulerian etc
-
Jared Mehl : spherical tophat collapse.
Notes
Further Reading:
- Classic spherical infall paper:
J. Gunn and R. Gott (1972) : "On the Infall of Matter Into
Clusters of Galaxies and Some Effects on Their Evolution"
Reading for Feb 2-8:
- Magical Mass Function:
W. Press and P. Schechter (1976) : "Formation of Galaxies and
Clusters of Galaxies by Self-Similar Gravitational Condensation"
- Also see Sec 17.2 of Peacok's "Cosmological Physics" for
an explanation of Press-Schechter and the "missing" factor of 2.
Feb 9 class:
-
Renbin Yan : all you ever want to know about Press-Schechter.
Notes
-
Brian Gerke : lensing basics
2. Gravitational Lensing --
- Reading for Feb 9-22:
- Lecture notes by Narayan and
Bartelmann. You can skip Sec 2.2 and 2.3, but make sure to read the
rest: review Sec 2.1 (Brian has covered most of it); Sec 3 gives more
basics; Sec 4 gets into weak lensing.
References
-
Ken Tatebe's strong lensing presentation
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Julie Comerford's strong lensing presentation
-
Current list of multiply-lensed systems: CASTLES
-
CLASS lensing survey
Feb 23 class:
-
Brian Gerke : strong lensing
-
Roger O'Brient : weak lensing intro
Reading for Feb 23-29:
- Weak lensing review by van Waerbeke and Mellier.
References
-
Arman Cingoz's weak lensing presentation
-
Summary article by H. Hoekstra: "Mapping the Dark Matter
Using Weak Lensing"
-
Review article by A. Refregier: "Weak Gravitational Lensing by
Large-Scale Structure"
-
Lecture notes on weak lensing by Bartelmann and Schneider
Mar 1 class:
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Roger O'Brient : weak lensing theory
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Tom Plagge : weak lensing measurements
3. CMB Polarization --
- Reading for Mar 1-8:
- Recent review by M. Zaldarriaga: "The Polarization of the CMB"
References
-
Yuki Takahashi's presentation in Astro/Phys 228
-
Roger O'Brient's presentation
-
Lecture notes
by A. Kosowsky: "Introduction to Microwave Background Polarization"
Mar 8 class:
-
Jeff Filippini and Yuki Takahashi: CMB polarization basics
- Reading for Mar 8-15:
- 1.
Theory review by
Liddle and Lyth: "Cold Dark Matter Density Perturbation."
This is a long review paper (105 pages) and you may not want to print out
the whole thing. Concentrate on Sec 2.1 (p.10-13), 3.1 (p.27-29), 4.1-4.3 (p.33-40), and 5.1-5.3 (p.40-51). Sec 4.1-4.3 on CMB is out of date, but
the physics discussion is relevant, in particular Sec 4.3 on gravity waves.
- 2. Observation summary article by
J. Carlstrom: "Status of CMB Polarization Measurements from DASI and
Other Experiments"
References
-
DASI's
first results
Mar 15 class:
-
Jeff Filippini: inflation, tensor perturbation, and B-mode polarization
-
Tom Plagge: lensing of CMB -- another source of B-mode polarization
-
Yuki Takahashi: polarization experiments
4. Lyman-alpha Absorbers, Reionization, and the Dark Ages --
- Reading for Mar 15-28:
- 1. Understanding quasar spectra:
Lecture notes by J. Bechtold: "Quasar Absorption Lines"
- 2. Reionization from high-redshift quasars: Becker et al (2001)
"Evidence for Reionization at z~6: Detection of a Gunn-Peterson Trough in a z=6.28 Quasar"
Mar 29 class:
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Julie Comerford and Evan Levine: quasars, absorption lines, atomic
physics, reionization
- Reading for Mar 29-Apr 4:
- 1.
Very long review by R. Barkana and A. Loeb: "In the Beginning:
the First Sources of Light and the Reionization of the Universe."
You should already know Sec 2 and 3.1-3.2.
Concentrate on Sec 1 (overview), 3.3 (gas cooling and heating), 6.1-6.5 (feedback
from first light sources), and 9.1.2 (21 cm hydrogen line).
- 2.
Short review by P. Madau: "The Era of Reionization"
Apr 5 class:
-
Julie Comerford, Joe Converse and Evan Levine:
formation and feedback of first stars, reionization of IGM,
21 cm physics and detection
5. Galaxy Formation --
- Reading for Apr 5-12:
- 1.
Lecture notes by S. White: "Formation and Evolution of Galaxies."
Read page 45-57 of Section 4
- 2.
What simulators see: "The Hierarchical Origin of Galaxy
Morphologies" by M. Steinmetz and J. Navarro. (Click on "movies"
below to see accompanying movies.)
- References (classic papers):
- Some cool
movies
-
S.D.M. White and M. Rees (1978) :
Core condensation in heavy halos - A two-stage theory for galaxy formation
and clustering
M. Rees and J. Ostriker (1977)
J. Silk (1977)
M. Fall and M. Rees (1985) : A theory for the origin of globular clusters
Apr 12 class:
-
Renbin Yan and Ken Tatebe:
galaxy properties, cooling/heating of baryons
6. Galaxy Mergers, Supermassive Black Holes (SMBH), and Gravity Waves
- Reading for Apr 12-19:
- 1.
Summary of evidence for SMBH at the Galactic Center by Andrea Ghez
- 2.
Review by Haiman and Quataert: Read Sec 5.2 (page 3-11) and Sec 5.4 (page 20-28).
Apr 19 class:
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Chris Herdman and Arman Cingoz:
Galactic Center BH; formation by accretion, merger, gas collapse,
and stellar core collapse.
- Reading for Apr 19-26:
- 1.
Summary of
SMBH-galaxy formation by M. Haehnelt:
"Joint Formation of Supermassive Black Holes and Galaxies"
- 2.
Gravity wave predictions by Wyithe and Loeb:
"Low-Frequency Gravitational Waves from Massive Black Hole Binaries:
Predictions for LISA and Pulsar Timing Arrays"
- References:
-
New paper (April 21) by M. Enoki et al:
"Gravitational Waves from SMBH Coalescence in a Hierarchical Galaxy Formation
Model"
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Earlier paper by G. Kauffmann
and M. Haehnelt:
"A Unified Model for the Evolution of Galaxies and Quasars"
-
Begelman et al (1980) Nature, 287, 307
Apr 26 class:
- Arman Cingoz and Chris Herdman:
gravity waves: sources, energy
7. Current Status of Dark Energy and Dark Matter
- Reading for Apr 26-May 3:
-
Most recent astro-ph
lecture notes on
dark energy by V Sahni:
Read Sec 2.1-2.3 (pages 11-21)
May 2 class:
- Miguel Daal and Jared Mehl:
lambda, q, b, c, ph, rip.
May 9 class:
- Mike Boylan-Kolchin:
small scale structures in LCDM halos
- References
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