Difference between revisions of "Radiative Processes in Astrophysics"

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== Topics by Date ==
 
== Topics by Date ==
  
====(Aug. 27) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)====
+
====(Aug. 26) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)====
 
* class mechanics
 
* class mechanics
 
** syllabus
 
** syllabus
Line 46: Line 46:
 
** convert photon number density to specific intensity
 
** convert photon number density to specific intensity
  
====(Sep. 1) radiative transport (RL 1.4; Mil 2.1-2.2)====
+
====(Aug. 31) radiative transport (RL 1.4; Mil 2.1-2.2)====
 
* Topics
 
* Topics
 
** [[Radiative Transfer Equation]]
 
** [[Radiative Transfer Equation]]
Line 58: Line 58:
 
** [https://github.com/AaronParsons/astro207/blob/main/bessel_V.dat bessel_V.dat]
 
** [https://github.com/AaronParsons/astro207/blob/main/bessel_V.dat bessel_V.dat]
  
==== (Sep. 3) Maxwell's Equations and Plane Waves ====
+
==== (Sep. 2) Maxwell's Equations and Plane Waves ====
 
* Topics
 
* Topics
 
** [[Maxwell Equations]] for Electromagnetic Waves
 
** [[Maxwell Equations]] for Electromagnetic Waves
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** Impedance of free space
 
** Impedance of free space
  
====(Sep. 8) scattering and absorption (RL 1.4, 1.7; Mil 2.1-2.2)====
+
====(Sep. 7) scattering and absorption (RL 1.4, 1.7; Mil 2.1-2.2)====
 
* Topics:
 
* Topics:
 
** [[Basic Scattering]]
 
** [[Basic Scattering]]
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps02.pdf Problem Set 2] Assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps02.pdf Problem Set 2] Assigned
  
==== (Sep. 10) thermodynamic equilibrium (RL 1.5)  ====
+
==== (Sep. 9) thermodynamic equilibrium (RL 1.5)  ====
 
* Topics
 
* Topics
 
** [[Black-Body Radiation]] (and Kirchoff's Law)
 
** [[Black-Body Radiation]] (and Kirchoff's Law)
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** types of temperature
 
** types of temperature
  
==== (Sep. 15) semi-classical hydrogen ====
+
==== (Sep. 14) semi-classical hydrogen ====
 
* Topics:
 
* Topics:
 
** [[Classical Bohr Atom]]  
 
** [[Classical Bohr Atom]]  
Line 104: Line 104:
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps03.pdf Problem Set 3] Assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps03.pdf Problem Set 3] Assigned
  
====  (Sep. 17) Einstein coefficients====
+
====  (Sep. 16) Einstein coefficients====
 
* Topics:
 
* Topics:
 
** [[Einstein Coefficients]]
 
** [[Einstein Coefficients]]
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** effective photon absorption crosssection
 
** effective photon absorption crosssection
  
==== (Sep. 22) spectral line broadening====
+
==== (Sep. 21) spectral line broadening====
 
* Topics
 
* Topics
 
** [[Line Profile Functions]]
 
** [[Line Profile Functions]]
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps04.pdf Problem Set 4] Assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps04.pdf Problem Set 4] Assigned
  
==== (Sep. 24) radiation from accelerating charges (RL 3.3-3.4)====
+
==== (Sep. 23) radiation from accelerating charges (RL 3.3-3.4)====
 
* Topics
 
* Topics
 
** [[Estimating Atomic Transition Strengths]]
 
** [[Estimating Atomic Transition Strengths]]
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** Einstein A for He+
 
** Einstein A for He+
  
==== (Sep. 29) molecular lines (RL 11) ====
+
==== (Sep. 28) molecular lines (RL 11) ====
 
* Topics
 
* Topics
 
** [[Atomic and Molecular Quantum Numbers]]
 
** [[Atomic and Molecular Quantum Numbers]]
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* No Problem Set this week
 
* No Problem Set this week
  
==== (Oct. 1) rovibrational transitions (RL 11) ====
+
==== (Sep. 30) rovibrational transitions (RL 11) ====
 
* Topics
 
* Topics
 
** [[Rovibrational Transitions]]
 
** [[Rovibrational Transitions]]
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** Cooling with CO
 
** Cooling with CO
  
====(Oct. 6)  masers ====
+
====(Oct. 5)  masers ====
 
* Topics
 
* Topics
 
** [[Masers]]
 
** [[Masers]]
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps05.pdf Problem Set 5] assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps05.pdf Problem Set 5] assigned
  
==== (Oct. 8) collisional excitations ====
+
==== (Oct. 7) collisional excitations ====
 
* Topics:
 
* Topics:
 
** [[Detailed Balance]]
 
** [[Detailed Balance]]
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** collisional line-driven cooling
 
** collisional line-driven cooling
  
==== (Oct. 13) free-free emission====
+
==== (Oct. 12) free-free emission====
 
* Topics
 
* Topics
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps06.pdf Problem Set 6] assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps06.pdf Problem Set 6] assigned
  
==== (Oct. 15) charged cross-sections (RL 1.7-1.8; Mil 2.3-2.5)====
+
==== (Oct. 14) charged cross-sections (RL 1.7-1.8; Mil 2.3-2.5)====
 
* Topics:
 
* Topics:
 
** [[Coulomb Focusing]]
 
** [[Coulomb Focusing]]
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** electrons in the IGM
 
** electrons in the IGM
  
==== (Oct. 20) bound-free transitions ====
+
==== (Oct. 19) bound-free transitions ====
 
* Topics
 
* Topics
 
** [[Milne Relation]]
 
** [[Milne Relation]]
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps07.pdf Problem Set 7] assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps07.pdf Problem Set 7] assigned
  
==== (Oct. 22) LTE and non-LTE ====
+
==== (Oct. 21) LTE and non-LTE ====
 
* Topics
 
* Topics
 
** [[Recombination Coefficients]]
 
** [[Recombination Coefficients]]
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** work out in detail redshift of recombination
 
** work out in detail redshift of recombination
  
==== (Oct. 27)  plasma effects====
+
==== (Oct. 26)  plasma effects====
 
* Topics
 
* Topics
 
** [[Plasma Frequency]]
 
** [[Plasma Frequency]]
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** [https://github.com/AaronParsons/astro207/blob/main/pulsar.dat pulsar.dat]
 
** [https://github.com/AaronParsons/astro207/blob/main/pulsar.dat pulsar.dat]
  
====  (Oct. 29) compton scattering ====
+
====  (Oct. 28) compton scattering ====
 
* Topics
 
* Topics
 
** [[Lorentz transformations]]
 
** [[Lorentz transformations]]
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** CMB coupling via compton
 
** CMB coupling via compton
  
==== (Nov. 3) Inverse Compton scattering====
+
==== (Nov. 2) Inverse Compton scattering====
 
* Topics:
 
* Topics:
 
** [[Inverse Compton Scattering]]
 
** [[Inverse Compton Scattering]]
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** compton saturation
 
** compton saturation
 
* No problem set
 
* No problem set
==== (Nov. 5) Synchrotron Introduction ====
+
 
 +
==== (Nov. 4) Synchrotron Introduction ====
 
* Topics:
 
* Topics:
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
Line 238: Line 239:
 
** beaming, superluminal motion, monte carlo compton
 
** beaming, superluminal motion, monte carlo compton
  
==== (Nov. 10) Synchrotron Radiation ====
+
==== (Nov. 9) Synchrotron Radiation ====
 
* Topics
 
* Topics
 
** [[Synchrotron Radiation]]
 
** [[Synchrotron Radiation]]
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* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps09.pdf Problem Set 9] assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps09.pdf Problem Set 9] assigned
  
==== (Nov. 12)  Synchrotron Self-Interactions ====
+
==== (Nov. 11) No Class (Veterans day) ====
 +
 
 +
==== (Nov. 16)  Synchrotron Self-Interactions ====
 
* Topics
 
* Topics
 
** [[Synchrotron Self-Interactions]]
 
** [[Synchrotron Self-Interactions]]
Line 258: Line 261:
 
** reading SSC spectra, inferring castrophe
 
** reading SSC spectra, inferring castrophe
  
====  (Nov. 17) dust and grains====
+
====  (Nov. 18) dust and grains====
 
* Topics:
 
* Topics:
 
** [[Dust Absorption and Scattering]]
 
** [[Dust Absorption and Scattering]]
Line 266: Line 269:
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps10.pdf Problem Set 10] assigned
 
* [https://github.com/AaronParsons/astro207/blob/main/ps_2020/ps10.pdf Problem Set 10] assigned
  
==== (Nov. 19) radiative diffusion ====
+
==== (Nov. 23) No Class ====
 +
 
 +
==== (Nov. 25) No Class ====
 +
 
 +
==== (Dec. 1) radiative diffusion ====
 
* Topics:
 
* Topics:
 
** [[Radiative Diffusion]]
 
** [[Radiative Diffusion]]
Line 274: Line 281:
 
**
 
**
  
==== (Nov. 24) No Class ====
+
==== (Dec. 2) Review ====
 
 
==== (Nov. 26) No Class ====
 
 
 
==== (Dec. 1) Review 1 ====
 
* Review
 
 
 
==== (Dec. 3) Review 2 ====
 
 
* Review
 
* Review
  

Revision as of 13:10, 20 August 2021

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. 26) 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. 31) radiative transport (RL 1.4; Mil 2.1-2.2)

(Sep. 2) Maxwell's Equations and Plane Waves

(Sep. 7) scattering and absorption (RL 1.4, 1.7; Mil 2.1-2.2)

(Sep. 9) thermodynamic equilibrium (RL 1.5)

(Sep. 14) semi-classical hydrogen

(Sep. 16) Einstein coefficients

(Sep. 21) spectral line broadening

(Sep. 23) radiation from accelerating charges (RL 3.3-3.4)

(Sep. 28) molecular lines (RL 11)

(Sep. 30) rovibrational transitions (RL 11)

(Oct. 5) masers

(Oct. 7) collisional excitations

(Oct. 12) free-free emission

(Oct. 14) charged cross-sections (RL 1.7-1.8; Mil 2.3-2.5)

(Oct. 19) bound-free transitions

(Oct. 21) LTE and non-LTE

(Oct. 26) plasma effects

(Oct. 28) compton scattering

(Nov. 2) Inverse Compton scattering

(Nov. 4) Synchrotron Introduction

(Nov. 9) Synchrotron Radiation

(Nov. 11) No Class (Veterans day)

(Nov. 16) Synchrotron Self-Interactions

(Nov. 18) dust and grains

(Nov. 23) No Class

(Nov. 25) No Class

(Dec. 1) radiative diffusion

(Dec. 2) Review

  • 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