PHYSICS 233 - COURSE OUTLINE

Notes Part 2

DATE TOPIC ASSIGNMENT
Mon Jan 6 OVERVIEW OF THE ISM
- Significance
- Components
- Requirements of LTE
- Energy Densities

D(raine) ch 1; O(sterbrock) ch. 1
Wed Jan 8
Exercise 1
Solution 1

COLLISIONALLY EXCITED LINES
- Elastic/Inelastic Scattering
- Collision timescales
- Emission measure
- Collision Strength
- Principle of Detailed Balance
- Two Level Atom (LDL/HDL)

D 2.2, 2.3 & 3 (also 6.1, 17)
D(opita &) S(utherland) ch 2

Fri Jan 10
Notes Part 1 		LINE EMISSION
- Three Level Atom
- Temperature diagnostics
- Density diagnostics
- Electronic Configuration
- Spectroscopic Notation
- Einstein coefficients
- Transition Rules
- Rotational, Vibrational, and Electronic Transitions in Molecules

D ch 4 and 18 (also 5, 6.3, 6.7)
DS ch 3
S(pitzer) ch 3
Wed Jan 15
Exercise 2
Solution 2 		RADIATIVE PROCESSES
- Emissisivity and Attenuation Coefficients
- Eqn. of Radiative Transfer & Solutions
- Brightness Temperature
- Antenna Temperature
- Masing
D ch. 6.1, 6.2, 6.7a, 7.5
DS ch 3
Wed Jan 22
Notes Part 3 		FUNDAMENTALS OF RADIATIVE TRANSFER
- Specific intensity, Mean intensity, Flux, Radiation Pressure
- Transfer Eqn.
D ch 6.3, 7
Rybicki & Lightman ch 1
DS ch 4
Mon Jan 27
Exercise 3
Solution 3 		RESONANCE LINE TRANSFER
- Oscillator strength
- Optical depth, column density, and equivalent width
- Curve of Growth

D ch 6.1-6.6, & ch 9
S ch 3
DS ch 4

Wed Jan 29 Notes Part 4 MORE RADIATIVE TRANSFER
- COG (continued)
- HI 21 cm emission and absorption
- Fluorescence
- Fine structure lines 		D ch 8, 19, 20
S
Mon Feb 3 Presentation I Assignment COOLING OF DIFFUSE GAS
- continuum processes
- recombination line processes
- collisional ionization equilibrium
- cooling plasmas
D ch 10, 13, 14.5, 34.1, 34.2
DS ch 5, 6, 7
Wed Feb 5 Notes Part 5 HII REGIONS
- Thermal Equilibrium
D ch 27
Osterbrock ch 3
DS ch 9
Mon Feb 10 Exercise 4
Solution 4
HII REGIONS
- Stromgren Radius
- Ionization Parameter
 D ch 15 (& 13.1) Osterbrock ch 2
DS ch 9, 10
Wed Feb 12 Notes Part 6 HII REGIONS
- Recombination Lines
- Star Formation Rate Indicators
D ch 14
Osterbrock ch 4 & 5
DS ch 9
Wed Feb 19 Notes Part 7 Exercise 5
HII Regions
- Radio recombination lines
- Radio thermal and non-thermal continuum
D 10.7
DS ch 8, 11
Fri Feb 21 Notes Part 8
DUST
- Observed Properties
- Scattering - Composition
D ch 21, 24, 25.22
(see also D 22,23,25,26 as time permits)
DS ch 12
Osterbrock ch 8
Tielens 4, 6, 9
Fri Feb 28
Meet at Noon (Pizza!)
Presentation Notes
APPLICATIONS OF NEBULAR EMISSION LINES


Presentation I Due: 1 page 'cheatsheat' plus 5-7 minute oral presentation
Mon March 3
Notes Part 9
Presentation 2 Assignment
2013 Release of Cloudy
Hazy 1
QuickStart
Hazy 2 		GLOBAL ISM
- Thermal Phases
- HI 		D ch 30 (& 29) & 39.4
DS 14
Spitzer
Tielens ch 8
Wed March 5
Solution 5
MOLECULAR GAS
- Rotational, vibrational, and Electronic Transitions in Molecules
- Observations of atomic and molecular gas in galaxies
- Formation & destruction of molecular hydrogen
- Gas masses from thermal dust emission

D ch 5, 19.1, 19.2, 19.3.2, 19.6, 20.1, 31, 32 (& 33)
Mon March 10
Notes Part 10
MOLECULAR GAS
Photodissociation Regions
- The CO to H2 Conversion Factor
- The CO SLED
- Radiative Pumping of H2
- Ionization Fronts & Photodissociation Fronts

D ch 16, 31.6, 31.7 (& 12.7)
Wed March 12 PHOTOIONIZATION EQUILIBRIUM CALCULATIONS


Presentation II Due: Including a calculation completed with CLOUDY.

Mon March 17

FINAL EXAM
Study Guide & Equation Sheet

Pick up 9-11 am; and return 3-5pm.