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Astronomy GR6001: Radiative Processes |
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Fall 2019 |
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MW 2:40-3:55pm, Room 1332 Pupin |
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Prof. J. Halpern |
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| GR6001 General Course Information | Other Columbia Astronomy Courses |
| Daily Course Syllabus |
| Date | Topic and Associated Reading | Homework |
| Sep 4 | Specific Intensity and its Moments (1-5) | HW #1 |
| Lecture Notes Pages 1-18 | Answers | |
| Sep 9 | Radiative Transfer - Emission, Absorption (7-11) | |
| Lecture Notes Pages 19-30 | ||
| Sep 11 |
Radiative Transfer in Plane-Parallel Geometry, Limb Darkening (27-29)
Blackbody Radiation (12-13) |
HW #2 |
| Solutions | ||
| Sep 16 |
Einstein Coefficients (14-18)
HI 21 cm Emission and Absorption - Spin Temperature (19-26) |
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Optional reading:
The Spin Temperature of Warm Interstellar H I (full article) The Perfect Proposal (of historical interest) The Bomerang Nebula is Colder than the Microwave Background 21 cm Cosmology and the EDGES paper |
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| Sep 18 | Radiative Transfer with Scattering, Two-Stream Approximation (34-40) | HW #3 |
| Lecture Notes Pages 31-40 | Solutions | |
| Sep 23 | Radiation from Accelerated Charges, Thomson Scattering and its Polarization (41-43, 49-50) | |
| Lecture Notes Pages 41-50 | ||
| Sep 25 | Polarization and Stokes Parameters (44-49), Linear Dielectrics (51-52) | HW #4 |
| Lecture Notes Pages 51-58 | Solutions | |
| Sep 30 | Rayleigh Scattering (53-58), Conductivity and Absorption (59-60) | |
| Lecture Notes Pages 59-72 | ||
| Oct 2 | Extinction by Dust (61-67), Polarization (68-72), Light Echoes, Natural Line Profile and Oscillator Strength (73-78) | HW #5 |
| Lecture Notes Pages 73-78 | Solutions | |
| Oct 7 | Line Broadening, Damped Lyman α (79-84) | |
| Lecture Notes Pages 79-86, Literature on CoG, NIST Atomic Spectra Database | ||
| Oct 9 | Curve of Growth (84-86), Lorentz Transformations, Aberration of Light (87-88) | HW #6 |
| Lecture Notes Pages 87-95 | Solutions | |
| Oct 14 | Doppler Shift, Four-vectors (89-95) | |
| Lecture Notes Pages 96-100 | ||
| Oct 16 | Radiation from Relativistic Particles (96-100), Synchrotron Radiation (101-105) | |
| Lecture Notes Pages 101-105 | ||
| Oct 21 | Midterm Exam - in class | |
| Oct 23 | Synchrotron Spectrum and Polarization (106-111) | HW #7 |
| Lecture Notes Pages 106-115 | Solutions | |
| Oct 28 | Synchrotron Self-absorption (112-113), Equipartition (114-115) | |
| Oct 30 | Diffusive Shock Acceleration (116-118) |
HW #8
and Figure |
| Lecture Notes Pages 116-127 | Solutions | |
| Nov 6 | Special Effects (121-127) | HW #9 |
| Lecture Notes Pages 128-133, Pages 134-135 | Solutions | |
| Nov 11 | Inverse Compton Scattering (128-131), Spectrum (132-133), Catastrophe (134-135) | |
| Lecture Notes Pages 136-139 | ||
| Nov 13 | Thermal Compton Scattering (136-137), Comptonization for Small Optical Depth (138-139), Bremsstrahlung (140-148) |
HW #10
and Figure |
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Sunyaev-Zel'dovich Effect,
Lecture Notes Pages 140-148,
Cooling function
and papers on Missing Baryons (1), Missing Baryons (2) |
Solutions | |
| Nov 18 | Plasma effects: Dispersion, Faraday Rotation (149-154) | |
| Lecture Notes Pages 149-154 | ||
| Nov 20 | Hydrogenic Atoms (155-164) | |
| Lecture Notes Pages 155-164 and Figures | ||
| Nov 25 | Multi-Electron Atoms, Spectroscopic Notation (165-173), He-like "Triplets" | HW #11 |
| Lecture Notes Pages 165-178 | Solutions | |
| Dec 2 | Fine Structure (173-178), Hyperfine structure (179-180), Normal Zeeman Effect (181-184) | |
| Lecture Notes Pages 179-188 | ||
| Dec 4 | Anomalous Zeeman Effect (185-187), Paschen-Back Effect (188), Quadratic Zeeman Effect (188), Dipole Transitions | |
| Figures for Zeeman Effect and Notes for Dipole Transitions, Raman Scattering | ||
| Dec 9 | Raman Scattering | |
| Dec 11 | Final Exam ("take-home" due 4:00pm) | Final Exam |
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