Difference between revisions of "Radiative Processes in Astrophysics"

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Line 100: Line 100:
 
** effective photon absorption crosssection
 
** effective photon absorption crosssection
  
==== (Sep. 18) spectral line broadening====
+
==== (Sep. 18) No Class ====
 +
 
 +
==== (Sep. 20) No Class ====
 +
 
 +
==== (Sep. 25) spectral line broadening====
 
* Topics
 
* Topics
 
** [[Fourier Transform]]
 
** [[Fourier Transform]]
Line 109: Line 113:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps03.pdf Problem Set 3] Assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps03.pdf Problem Set 3] Assigned
  
==== (Sep. 20) radiation from accelerating charges (RL 3.3-3.4)====
+
==== (Sep. 27) radiation from accelerating charges (RL 3.3-3.4)====
 
* Topics
 
* Topics
 
** [[Estimating Atomic Transition Strengths]]
 
** [[Estimating Atomic Transition Strengths]]
Line 117: Line 121:
 
** Einstein A for CO
 
** Einstein A for CO
  
====(Sep. 25)  molecular lines (RL 11) ====
+
====(Oct. 2)  molecular lines (RL 11) ====
 
* Topics
 
* Topics
 
** [[Atomic and Molecular Quantum Numbers]]
 
** [[Atomic and Molecular Quantum Numbers]]
Line 125: Line 129:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps04.pdf Problem Set 4] Assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps04.pdf Problem Set 4] Assigned
  
==== (Sep. 27)  masers ====
+
==== (Oct. 4)  masers ====
 
* Topics
 
* Topics
 
** [[Masers]]
 
** [[Masers]]
Line 132: Line 136:
 
** laser pointers
 
** laser pointers
  
==== (Oct. 2) collisional excitations ====
+
==== (Oct. 9) collisional excitations ====
 
* Topics:
 
* Topics:
 
** [[Collisional Excitations]]
 
** [[Collisional Excitations]]
Line 141: Line 145:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps05.pdf Problem Set 5] assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps05.pdf Problem Set 5] assigned
  
==== (Oct. 4) free-free emission====
+
==== (Oct. 11) free-free emission====
 
* Topics
 
* Topics
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
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** simulating a free-free interaction
 
** simulating a free-free interaction
  
==== (Oct. 9) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)====
+
==== (Oct. 16) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)====
 
* Topics:
 
* Topics:
 
** [[Coulomb Focusing]]
 
** [[Coulomb Focusing]]
Line 158: Line 162:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps06.pdf Problem Set 6] assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps06.pdf Problem Set 6] assigned
  
==== (Oct. 11) bound-free transitions ====
+
==== (Oct. 18) bound-free transitions ====
 
* Topics
 
* Topics
 +
** [[Milne Relation]]
 
** [[Saha Equation]]
 
** [[Saha Equation]]
** [[Recombination Coefficients]]
 
 
* Activities
 
* Activities
 
** stromgren spheres
 
** stromgren spheres
** recombination coefficients
 
 
** work out in detail redshift of recombination
 
** work out in detail redshift of recombination
  
====(Oct. 16) No Class====
+
==== (Oct. 23) LTE and non-LTE ====
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps07.pdf Problem Set 7] assigned
 
 
 
==== (Oct. 18) LTE and non-LTE ====
 
 
* Topics
 
* Topics
** [[Milne Relation]]
+
** [[Recombination Coefficients]]
 
** [[Review of Equilibria]]
 
** [[Review of Equilibria]]
 
* Activities
 
* Activities
 
** estimating recombination coefficients
 
** estimating recombination coefficients
  
====  (Oct. 23)  plasma effects====
+
====  (Oct. 25)  plasma effects====
 
* Topics
 
* Topics
 
** [[Plasma Frequency]]
 
** [[Plasma Frequency]]
Line 189: Line 189:
 
** [https://github.com/AaronParsons/astro207/blob/master/pulsar.dat pulsar.dat]
 
** [https://github.com/AaronParsons/astro207/blob/master/pulsar.dat pulsar.dat]
  
==== (Oct. 25) compton scattering ====
+
==== (Oct. 30) compton scattering ====
 
* Topics
 
* Topics
 
** [[Lorentz transformations]]
 
** [[Lorentz transformations]]
Line 198: Line 198:
 
** relativistic intuition, velocity raptor
 
** relativistic intuition, velocity raptor
  
==== (Oct. 30) Inverse Compton scattering====
+
==== (Nov. 1) Inverse Compton scattering====
 
* Topics:
 
* Topics:
 
** [[Inverse Compton Scattering]]
 
** [[Inverse Compton Scattering]]
Line 207: Line 207:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps09.pdf Problem Set 9] assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps09.pdf Problem Set 9] assigned
  
==== (Nov. 1) Synchrotron Introduction ====
+
==== (Nov. 6) Synchrotron Introduction ====
 
* Topics:
 
* Topics:
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
Line 215: Line 215:
 
** re-deriving synchrotron critical frequency
 
** re-deriving synchrotron critical frequency
  
==== (Nov. 6) Synchrotron Radiation ====
+
==== (Nov. 8) Synchrotron Radiation ====
 
* Topics
 
* Topics
 
** [[Synchrotron Radiation]]
 
** [[Synchrotron Radiation]]
Line 226: Line 226:
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps10.pdf Problem Set 10] assigned
 
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps10.pdf Problem Set 10] assigned
  
====  (Nov. 8)  Synchrotron Self-Interactions ====
+
====  (Nov. 13)  Synchrotron Self-Interactions ====
 
* Topics
 
* Topics
 
** [[Synchrotron Self-Interactions]]
 
** [[Synchrotron Self-Interactions]]
Line 234: Line 234:
 
**
 
**
  
==== (Nov. 13) dust and grains====
+
==== (Nov. 15) dust and grains====
 
* Topics:
 
* Topics:
 
** [[Dust Absorption and Scattering]]
 
** [[Dust Absorption and Scattering]]
Line 240: Line 240:
 
* Activities
 
* Activities
  
==== (Nov. 15) radiative diffusion ====
+
==== (Nov. 20) No Class ====
 +
 
 +
==== (Nov. 22) No Class ====
 +
 
 +
==== (Nov. 27) radiative diffusion ====
 
* Topics:
 
* Topics:
 
** [[Radiative Diffusion]]
 
** [[Radiative Diffusion]]
Line 248: Line 252:
 
**
 
**
  
==== (Nov. 20) No Class ====
+
==== (Nov. 29) Review 1 ====
 
 
==== (Nov. 22) No Class ====
 
 
 
==== (Nov. 27) Review 1 ====
 
 
* Review
 
* Review
  
==== (Nov. 29) Review 2 ====
+
==== (Dec. 4) Review 2 ====
 
* Review
 
* Review
  

Revision as of 13:25, 21 August 2018

An introduction to the basic physics of astronomy and astrophysics at the graduate level. Principles of energy transfer by radiation. Elements of classical and quantum theory of photon emission; bremsstrahlung, synchrotron radiation. Compton scattering, plasma effects, atomic and molecular electromagnetic transitions. With applications to current research into astrophysical phenomena.

These are a collection of lectures covering topics in an introductory graduate astrophysics course on radiative processes. The subject matter is loosely drawn from Radiative Processes in Astrophysics by Rybicki & Lightman.

At the end of the semester, each student will develop one new lecture on a subject of their choice to add to this website.

Class Code Repository

http://github.com/AaronParsons/astro207

Syllabus

Useful External References

Topics by Date

(Aug. 23) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)

  • class mechanics
    • syllabus
    • references
      • Rybicki & Lightman
      • Astrobaki: learn better by teaching
    • tools for figuring stuff out
      • theoretical derivation
      • order-of-magnitude estimation
      • physical intuition (hands-on modeling, analogies)
      • numerical simulation
    • programming
  • Topics
  • Activities
    • convert photon number density to specific intensity

(Aug. 28) radiative transport (RL 1.4; Mil 2.1-2.2)

(Aug. 30) Maxwell's Equations and Plane Waves

(Sep. 4) scattering and absorption (RL 1.4; Mil 2.1-2.2)

(Sep. 6) thermodynamic equilibrium (RL 1.5)

(Sep. 11) semi-classical hydrogen

(Sep. 13) Einstein coefficients

(Sep. 18) No Class

(Sep. 20) No Class

(Sep. 25) spectral line broadening

(Sep. 27) radiation from accelerating charges (RL 3.3-3.4)

(Oct. 2) molecular lines (RL 11)

(Oct. 4) masers

  • Topics
  • Activities
    • masers as transistors
    • laser pointers

(Oct. 9) collisional excitations

(Oct. 11) free-free emission

(Oct. 16) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)

(Oct. 18) bound-free transitions

(Oct. 23) LTE and non-LTE

(Oct. 25) plasma effects

(Oct. 30) compton scattering

(Nov. 1) Inverse Compton scattering

(Nov. 6) Synchrotron Introduction

(Nov. 8) Synchrotron Radiation

(Nov. 13) Synchrotron Self-Interactions

(Nov. 15) dust and grains

(Nov. 20) No Class

(Nov. 22) No Class

(Nov. 27) radiative diffusion

(Nov. 29) Review 1

  • Review

(Dec. 4) Review 2

  • Review

Misc Topics

Legacy Lecture Notes

  1. Radiation Lecture 01
  2. Radiation Lecture 02
  3. Radiation Lecture 03
  4. Radiation Lecture 04
  5. Radiation Lecture 05
  6. Radiation Lecture 06
  7. Radiation Lecture 07
  8. Radiation Lecture 08
  9. Radiation Lecture 09
  10. Radiation Lecture 10
  11. Radiation Lecture 11
  12. Radiation Lecture 12
  13. Radiation Lecture 13
  14. Radiation Lecture 14
  15. Radiation Lecture 15
  16. Radiation Lecture 16
  17. Radiation Lecture 17
  18. Radiation Lecture 18
  19. Radiation Lecture 19
  20. Radiation Lecture 20
  21. Radiation Lecture 21
  22. Radiation Lecture 22
  23. Radiation Lecture 23
  24. Radiation Lecture 24
  25. Radiation Lecture 25
  26. Radiation Lecture 26