3C433

ASTRONOMY 422
Concepts of Astrophysics II



Astronomy 422 (Spring 2009) is intended for advanced (senior level) undergraduates, and is also counted as an elective for graduate students. This course covers galaxies and the Universe, starting off with the interstellar medium. We will then discuss the structure of the Milky Way and other galaxies, galaxy evolution, to end with the large scale structure of the Universe. The last part of the course will concentrate on cosmology, and the early Universe.

Instructor: Prof. Y. Pihlström, phone 277-4492, email ylva@unm.edu
TA: Tiffany Hayes, thayes77@unm.edu
Time and place: Tu/Th 8:00 AM-9:15 AM
Room 184, Physics & Astronomy Building
Textbook: An Introduction to Modern Astrophysics, B.W. Carroll & D.A. Ostlie, 2nd Edition.
Prerequisites: Physics 330 or 491,492 or their equivalent, and Astro 421.
Exams and Grades: Your final grade will be determined through three sectional exams (each 20% of the grade), six sets of homework (20%) and a term paper (20%). There will be no final exam.

Some useful links:
Science Daily's website for astronomy news
Search engines for articles: ADS database,   Astro-ph
Example of term paper outline. The outline will of course be different depending on your topic, but by writing an outline we will be able to make sure that you work on the relevant parts from the beginning.

Lecture schedule - updated 1/16/09
Date Topic Chapter
Tu Jan 20 The Interstellar Medium: ISM phases, neutral hydrogen 12.1
Th Jan 22 The ISM: WIM, dispersion measures, HII regions 12.1 and add. mtrl.
Tu Jan 27 The ISM: HIM, cosmic rays, synchrotron radiation 15.5 and add. mtrl.
Th Jan 29 The ISM: molecular clouds, H2, interstellar chemistry, IMF 12.1-12.3
Tu Feb 3 The Milky Way: morphology, ISM distribution 24.1-24.2
Th Feb 5 The Milky Way: kinematics
Term paper topics due
Homework 1 due
24.3
Tu Feb 10 The Milky Way: the Galactic Center 24.4
Th Feb 12 Galaxies: the Hubble sequence, galaxy types
Homework 2 due
25.1
Tu Feb 17 Exam 1 12, 15.5, 24
Th Feb 19 Galaxies: spiral galaxies, rotation curves 25.2
Tu Feb 24 Galaxies: spiral structure 25.3
Th Feb 26 Galaxies: ellipticals, galaxy overview 25.4
Tu Mar 3 Galactic Evolution: galaxy interactions 26.1
Th Mar 5 Galactic Evolution: formation of disks and ellipticals
Homework 3 due
26.2
Tu Mar 10 Structure of the Universe: extragalactic distance scale
Term paper outline due
27.1
Th Mar 12 Expansion of the Universe: Hubble's law, large scale structure
Homework 4 due
27.2-27.3
Tu Mar 17 Spring break
Th Mar 19 Spring break
Tu Mar 24 Exam 2 25, 26, 27
Th Mar 26 Active Galaxies: types, evolution 28.1
Tu Mar 31 Active Galaxies: unified model, gravitational lensing 28.2-28.4
Th Apr 2 Cosmology: Newtonian cosmology 29.1
Tu Apr 7 Cosmology: The CMB, Big Bang nucleosynthesis 29.2
Th Apr 9 Cosmology: Relativistic cosmology, dark energy
Homework 5 due
29.3
Tu Apr 14 Cosmology: observational cosmology 29.4
Th Apr 16 The Early Universe: inflation, hot and cold dark matter
Homework 6 due
30.1
Tu Apr 21 The Early Universe: origin of structure 30.2
Th Apr 23 Exam 3 28, 29, 30
Tu Apr 28 Term paper presentations
Term papers due
Th Apr 30 Term paper presentations
Tu May 5 Term paper presentations
Th May 7 Term paper presentations