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Physics/Astronomy 228
Extragalactic Astronomy and Cosmology
(Fall 2006)
Problem Set 1 (due Fri 9/15)
(Solutions; courtesy of Brad Hagan)
Reading: (1) Ch 1 of Dodelson; (2) Sec 19.1 of
Big Bang Cosmology from
the Review of Particle Physics
Problem Set 2 (due Fri 9/22)
(Solutions)
Data from Tables 1 and 5 of
Riess et al. (2004) .
Reading: Riess et al. (1998), Perlmutter et al. (1999).
Problem Set 3 (due Fri 9/29)
(Solutions)
Reading: (1) Ch 2 of Dodelson; (2) Sec 19.2 of
Big Bang Cosmology
Problem Set 4 (due 5pm Fri 10/6 in Brad Hagan's
mailbox, 6th floor mailroom, Campbell)
(Solutions)
Reading: (1) Ch 3 of
Dodelson; (2) Sec 19.3 of Big Bang
Cosmology; (3) All of Big Bang
Nucleosynthesis
Problem Set 5 (due Fri 10/20)
(Solutions)
Reading: (1) Reread Ch 2.4 of Dodelson; (2)
All of Dark Matter
Week of 10/22
Start on your project. See Guidelines below.
Problem Set 6 (due Fri 11/3)
(Solutions)
Reading: (1) Graham's notes on
"Dynamics of Ideal Fluids" (2) Ch 7.1 of Dodelson
Problem Set 7 (due Fri 11/17)
(Solutions)
Reading: Ch 7 of Dodelson
Problem Set 8 (due Fri 12/1)
Reading: Ch 4 and Ch 8.1-8.3 of Dodelson
Problem Set 9 (due Fri 12/8)
Reading: Ch 6 and Ch 8 of Dodelson
: 12/15 Friday 1-5pm in Campbell 544.
Projects
The purpose of this assignment is to give you a chance to investigate
in some depth a current research topic in cosmology, using the
knowledge we have discussed in class. This exercise is important
because, unlike the standard graduate courses (e.g. EM, quantum, stat
mech, radiative transfer), cosmology is a rapidly progressing subject
that is filled with new (and sometimes wrong) research results and
opportunities. Hopefully you will get a taste of the excitement in the field.
You will also get to practice giving
oral presentations, an integral part of most scientists' research
activities.
Presentations: Each talk is 15 minutes (strictly enforced).
The audience is your classmates, so pedagogy is important. All of the
topics below are broad and have consumed many professional
astro/physicists' lives. Use your 15 minutes as if you were a
professor recruiting your classmates to work on your topic. Focus on
questions such as: Why is it important (or is it)? How is it done?
What have we learned? What to expect next? I will link your
presentation files so interested students can check it out for more
details later.
For several topics, I have discussed the theoretical background at
length in class. Here you should spend only one slide reviewing it
and then jump into the observations and phenomenology. For other
topics, you should aim for a balance in theory and results.
Within this framework, you have the freedom to design your talk.
The linked references are only meant to get you started.
You should explore beyond it, read a lot, learn a lot, and filter
out the essence to present to class.
-
1. CMB
Anna Treaster: CMB primary anisotropies and non-Gaussianity
- WMAP website
Amber Bauermeister: CMB Sunyaev-Zeldovich effects; galaxy clusters
-
Review article (2002) by Carlstrom et al.
-
Review article (1999) by
Birkinshaw
Eric Bellm: CMB polarization
-
Resuls from the
DASI and
CBI experiments
- Observation summary
article by Carlstrom: "Status of CMB Polarization Measurements
from DASI and Other Experiments"
-
Review by Zaldarriaga
-
Lecture notes by Kosowsky
2. Gravitational Lensing, Baryonic Dark Matter
Alex Selem: Big Bang Nucleosynthesis;
deuterium, helium, lithium, Omega_baryon
-
Article from Review of Particle Physics (2006)
- Review by Steigman (2003)
astro-ph/0307244
- Older review by Schramm and Turner (1998)
Reviews of Modern Physics, 70, 303
Pablo Velasco: Strong and weak gravitational lensing
-
Lecture notes
by Narayan and Bartelmann
-
Current list of multiply-lensed systems: CASTLES
-
CLASS lensing survey
Elizabeth Dyer: Gravitational microlensing; searches for baryonic dark matter
-
MACHO team website
-
OGLE team website
3. Cold/Hot Dark Matter
Peter Williams: Cold Dark Matter
-
Cryogenic Dark Matter Search (CDMS)
website
-
Latest WIMP limits from EDELWEISS team
astro-ph/0605496,
astro-ph/0412061
-
WIMP "detection" from DAMA team
astro-ph/0405282,
astro-ph/0307403
- Gamma-ray telescopes H.E.S.S.: dark
matter annihilation signatures
Willie Klemm: Warm/Hot Dark Matter: neutrino oscillations, masses
Adrian Down:
the solar neutrino problem, supernova neutrinos
-
2002
Nobel Prize to Davis and Koshiba
-
John Bahcall's neutrino website
- Underground experiments: SuperKamiokande, Sudbury Neutrino Observatory (SNO)
- SNEWS: The SuperNova Early Warning System
4. Galaxies, Dark Energy
Thea Steele : Galaxy surveys, constraints on w from baryon
oscillations, large-scale structure of the universe,
- Sloan Digital Sky Survey (SDSS)
- Two-Degree-Field (2dF) Survey
Mike Childress : Gravity waves
-
The Hulse-Taylor Pulsar: first indication for gravitational radiation
-
LIGO experiment
-
LISA mission
(Chris Trinh): Galaxy and supermassive black hole mergers; numerical simulations
-
Old review on interacting galaxies by Barnes and Hernquist
-
Review on
cosmological simulations by Bertschinger
(Oyvind Kvanes): Hubble parameter H_0; distance determination
-
-
Freedman et al. (2001):
Final HST Key Project paper on H_0
-
Hipparcos Satellite
Instructor:
Chung-Pei Ma
Office: 641B Campbell Hall
Phone: (510)642-4850
Fax: (510)642-3411
Email: cpma(at)berkeley.edu
Grader:
Brad Hagan
Office: 715 Campbell Hall
Email: bhagan@berkeley.edu
Lectures: F 2:10-5pm; Campbell 544
Office Hours: Dec 8 Thu 3-4pm; Campbell 641B
Main Text:
- Scott Dodelson "Modern Cosmology" (Academic Press 2003; QB981.D634)
- Errata
to Dodelson's textbook : Let me know if you catch any.
Supplementary Texts:
- M. S. Longair "Galaxy Formation" (Springer-Verlag 1998; QB981.L846)
- J. A. Peacock "Cosmological Physics" (Cambridge
University Press 1999; QB981.P37)
- A. R. Liddle and D. Lyth "Cosmological Inflation and Large Scale
Structure" (Cambridge University Press 2000; QB991.I54L53)
Grading:
- 2/3 Problem Sets
- 1/3 Report (on observational cosmology and parameter determination)
Printable Syllabus (pdf)
Course Content:
- 1. The Smooth Universe: the Friedmann-Robertson-Walker Model
- 1.1. The Cosmological Principle; Hubble parameter H; scale factor a
- 1.2. Friedmann equation; equation of state; density parameter Omega
- 1.3. Time evolution of H, Omega, a; open, flat, closed models
- 1.4. The Robertson-Walker metric
- 1.5. Kinematical relations: age, time-redshift, distance-redshift,
angular sizes
- 2. The Bright Side: Thermal History/Big Bang Nucleosynthesis
- 2.1. Tour of the particle zoo
- 2.2. Thermodynamics of Fermi and Bose gases in an expanding universe
- 2.3. The first 3 minutes in 5.5 frames
- 2.4. Light element abundance: helium, deuterium, lithium,
baryon-to-photon ratio
- 2.5. Thereafter: radiation-matter equality; recombination;
the cosmic microwave background
- 3. The Dark Side
- 3.1. Two dark matter problems: baryonic vs. non-baryonic
- 3.2. Warm/Hot dark matter: neutrino background; mass limits;
neutrino oscillations
- 3.3. Cold dark matter: what is it? current experimental searches
- 3.4. Dark energy
- 4. The Lumpy Universe: Structure Formation Theory
- 4.1. Jeans theory of gravitational instability: static vs expanding
medium
- 4.2. Time evolution of density and velocity fields; baryonic Jeans mass
- 4.3. Full linear perturbation theory:
general relativistic and Boltzmann approach
- 4.4. Photon-baryon coupling; fluctuations in the cosmic microwave background
- 4.5. Statistics of perturbation fields: power spectrum, correlation functions, non-Gaussianity
- 4.6. Nonlinear gravitational collapse: analytical approximations;
numerical simulations
- 5. Very Early Universe
- 5.1. Successes and problems of the standard Big Bang model
- 5.2. Phase transitions: scalar fields; equations of motion
- 5.3. Inflation: slow-roll; reheating; quantum fluctuations;
the Harrison-Zeldovich spectrum
- 6. Selected Topic (student projects)
- see above
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