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Physics/Astronomy 161
Relativistic Astrophysics and Cosmology
(Spring 2009)
Assignments:
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Problem Set 8 (due 5pm Friday May 1)
Reading: Ch 9, 11, and 12 of Ryden
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Problem Set 7 (due 5pm Friday April 17)
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Problem Set 6 (due 5pm Thursday April 2)
Reading: Dark Matter.
Optional: Neutrino Mass and Mixing
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Problem Set 5 (due 5pm Thursday Mar 12)
Reading: BBN
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Problem Set 4 (due 5pm Thursday Mar 5)
Reading: Ch 2.4-2.5 and Ch 10 of Ryden
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Problem Set 3 (due 5pm Thursday Feb 26)
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Problem Set 2 (due 5pm Wednesday Feb 18)
Fig 4 and
data from Tables 1 and 5 of Riess et al. (2004)
Reading: Ch 3, 6 and 7 of Ryden
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Problem Set 1 (due 5pm Thursday Feb 5)
Reading: Ch 4 and 5 of Ryden
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Reading (by Wed Jan 28): Ch 1 and 2.1-2.3 of Ryden
Announcements:
The purpose of the in-class presentation is to give you a chance to
investigate in some depth a current research topic in cosmology, using
the knowledge you have gained in class. This exercise is important
because, unlike the standard physics courses (e.g. EM, quantum, stat
mech), 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.
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 am happy to link to your
presentation slides so interested students can look at it in 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 extract the essential points
to present to the class.
We will meet with each team the week before the presentation date to
go over your talk outline.
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April 6 (Mon): Christina Kay + Edward Young: H_0: How is the Hubble parameter measured? Parallax, Cepheids etc
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Final HST Key Project paper on H_0:
Freedman et al. (2001)
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Hipparcos Satellite
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April 8 (Wed): Anna Rosen + Jessia Benzler: Big Bang Nucleosynthesis: how to measure the abundances of helium, deuterium, and lithium?
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Article from Review of Particle Physics (2008)
- Review by Steigman (2003)
astro-ph/0307244
- Older review by Schramm and Turner (1998)
Reviews of Modern Physics, 70, 303
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April 8 (Wed): Clay Miller + Alex McLeod : Baryonic dark matter: how to find them? Micro-gravitational lensing
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MACHO team website
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OGLE team website
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April 13 (Mon): Ken Reichl + Eric Petigura: Mapping dark matter using gravitational lensing
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Lecture notes
by Narayan and Bartelmann
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Current list of multiply-lensed systems: CASTLES
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CLASS lensing survey
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April 15 (Wed): Jason Chu + Tim Ma: q_0: How is the acceleration of the Universe measured?
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Original two papers:
Riess et al. (1998) ,
Perlmutter et al. (1999)
- Recent high-redshift supernova results:
Riess et al. (2004)
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April 20 (Mon): Tae Lim + Josh Mendoza: Cold dark matter: how to find them?
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Cryogenic Dark Matter Search (CDMS)
website
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Latest WIMP limits from EDELWEISS team
arXiv:0901.2040
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WIMP detection claim from the DAMA Experiment
- Gamma-ray telescopes H.E.S.S.: dark
matter annihilation signatures
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April 20 (Mon): Charles Lieou + Shane Frewen: Hot dark matter: massive neutrinos; neutrinos from supernovae
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2002
Nobel Prize to Davis and Koshiba
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John Bahcall's neutrino website
- Underground experiments: SuperKamiokande, Sudbury Neutrino Observatory (SNO)
- SNEWS: The SuperNova Early Warning System
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April 22 (Wed): Beatrice Bonga + Nathalie Skrzypek: Supermassive black holes at centers of galaxies
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Summary of observational evidence for a supermassive black hole at the Galactic Center by Ghez
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Summary of
SMBH-galaxy formation by Haehnelt
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April 22 (Wed): Nhieu Duong + Vicki Toy:Gravity waves: what sources produce them? Binary black holes
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Begelman et al (1980): Supermassive black hole
Binaries
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Summary of observational evidence for supermassive black hole binaries
by Komossa
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Gravity wave predictions by Wyithe and Loeb:
"Low-Frequency Gravitational Waves from Massive Black Hole Binaries:
Predictions for LISA and Pulsar Timing Arrays"
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April 27 (Mon): Etsuko Mieda + Robyn Mostardi: CMB: polarization
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Resuls from the
DASI and
CBI experiments
- Observation summary
article by Carlstrom: "Status of CMB Polarization Measurements
from DASI and Other Experiments"
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Lecture notes by Kosowsky
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April 27 (Mon): Kimberly Aller + Katherine Deck: Reionization: how do the first stars and galaxies reionize the
neutral hydrogen and how to detect it?
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Short review by Madau: "The Era of Reionization"
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April 29 (Wed): Allic Sivaramakrishnan + Paul Brook : TBD
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April 29 (Wed): William Kang + Kiarash Kiantaj : Cosmological Simulations
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Review by Bertschinger (1998):
Annual Review of Astronomy and Astrophysics, 36, 599
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MPA Numerical Cosmology
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May 4 (Mon): Ali Zaki : Multiverses
Instructor: Prof. Chung-Pei Ma
Office: Campbell Hall 641B
Phone: (510) 642-4850
Email: cpma(at)berkeley.edu
Office Hours: Mon 2-3pm Campbell 641B
GSI:
Onsi Fakhouri
Office: Campbell Hall 715
Email: onsi(at)berkeley.edu
Grader:
James McBride
Email: jmcbride(at)berkeley.edu
Lectures: MW 10:30-noon; Campbell 544
Sections: Tuesday 11-12 or 4-5; Campbell 544
Main Text:
- Barbara Ryden "Introduction to Cosmology" (Addison Wesley; QB981.R93)
Other Good Readings:
- Andrew Liddle
"An Introduction to Modern Cosmology" (at a comparable level to Ryden)
M. S. Longair "Galaxy Formation"
(for those interested in graduate-level cosmology)
Steven Weinberg
"The First Three Minutes"
(a popular account of the thermal history of the universe)
Kip Thorne
"Black Holes and Time Warps"
(a beautifully written popular book on black holes and relativity)
Grading:
- 50% Problem Sets; 25% Exam; 25% Project
(Evolving and Expanding) Course Content:
- 1. The Smooth Universe
- 1.1 Homogeneity, isotropy, Hubble expansion [Ch 1,2]
- 1.2 Friedmann equation, equation of state, the density parameter [Ch 4]
- 1.3 Open, flat, closed models; radiation, matter, dark energy [Ch 5,6]
- 1.4 Rudiments of general relativity; the Robertson-Walker metric [Ch 3]
- 1.5 Age, time-redshift, distance-redshift, angular sizes [Ch 7]
- 2. Stuff in the Universe: the Bright Side
- Tour of the particle zoo
- Thermodynamics of Fermi and Bose gases in an expanding universe
- The longest 3 minutes of your life: creation of
light elements: helium, deuterium, lithium, baryon-to-photon ratio [Ch 10]
- 3. Stuff in the Universe: the Dark Side
- Evidence for dark matter and dark energy
- What can they be? [Ch 8]
- 4. The Lumpy Universe
- Gravitational instability in a static vs expanding universe [Ch 12]
- Growth of structures
- Photon-baryon scattering; the cosmic microwave background [Ch 9]
- 5. The Baby Universe
- Successes and problems of the standard Big Bang model [Ch 11]
- How to fix it? Inflation
- 6. Black Holes
- Why do we think they exist?
- Black hole physics: Schwarzschild metric, event horizon, origin and growth of holes
- Gravity waves
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