Difference between revisions of "Radiative Processes in Astrophysics"

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== Topics by Date ==
 
== Topics by Date ==
  
====(Aug. 24) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)====
+
====(Aug. 23) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)====
 
* class mechanics
 
* class mechanics
 
** syllabus
 
** syllabus
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** convert photon number density to specific intensity
 
** convert photon number density to specific intensity
  
====(Aug. 29) radiative transport (RL 1.4; Mil 2.1-2.2)====
+
====(Aug. 28) radiative transport (RL 1.4; Mil 2.1-2.2)====
 
* Topics
 
* Topics
 
** [[Radiative Transfer Equation]]
 
** [[Radiative Transfer Equation]]
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** locust swarm
 
** locust swarm
  
==== (Aug. 31) Maxwell's Equations and Plane Waves ====
+
==== (Aug. 30) Maxwell's Equations and Plane Waves ====
 
* Topics
 
* Topics
 
** [[Maxwell Equations]] for Electromagnetic Waves
 
** [[Maxwell Equations]] for Electromagnetic Waves
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** [[Larmor Formula]]
 
** [[Larmor Formula]]
  
====(Sep. 5) scattering and absorption (RL 1.4; Mil 2.1-2.2)====
+
====(Sep. 4) scattering and absorption (RL 1.4; Mil 2.1-2.2)====
 
* Topics:
 
* Topics:
 
** [[Basic Scattering]]
 
** [[Basic Scattering]]
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** photon diffusion
 
** photon diffusion
 
** high beams in fog
 
** high beams in fog
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps01.pdf Problem Set 1] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps01.pdf Problem Set 1] assigned
 
** [https://github.com/AaronParsons/astro207/blob/master/vega_spectrum.dat vega_spectrum.dat]
 
** [https://github.com/AaronParsons/astro207/blob/master/vega_spectrum.dat vega_spectrum.dat]
 
** [https://github.com/AaronParsons/astro207/blob/master/bessel_V.dat bessel_V.dat]
 
** [https://github.com/AaronParsons/astro207/blob/master/bessel_V.dat bessel_V.dat]
  
==== (Sep. 7) thermodynamic equilibrium (RL 1.5)  ====
+
==== (Sep. 6) thermodynamic equilibrium (RL 1.5)  ====
 
* Topics
 
* Topics
 
** [[Boltzmann distribution]]
 
** [[Boltzmann distribution]]
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** types of temperature
 
** types of temperature
  
==== (Sep. 12) semi-classical hydrogen ====
+
==== (Sep. 11) semi-classical hydrogen ====
 
* Topics:
 
* Topics:
 
** [[Classical Bohr Atom]]  
 
** [[Classical Bohr Atom]]  
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** Rydberg
 
** Rydberg
 
** dipoles/quadrupoles
 
** dipoles/quadrupoles
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps02.pdf Problem Set 2] Assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps02.pdf Problem Set 2] Assigned
  
====  (Sep. 14) Einstein coefficients====
+
====  (Sep. 13) Einstein coefficients====
 
* Topics:
 
* Topics:
 
** [[Einstein Coefficients]]
 
** [[Einstein Coefficients]]
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** effective photon absorption crosssection
 
** effective photon absorption crosssection
  
==== (Sep. 19) spectral line broadening====
+
==== (Sep. 18) spectral line broadening====
 
* Topics
 
* Topics
 
** [[Fourier Transform]]
 
** [[Fourier Transform]]
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* Activities
 
* Activities
 
** what can you learn from a spectral line
 
** what can you learn from a spectral line
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps03.pdf Problem Set 3] Assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps03.pdf Problem Set 3] Assigned
  
==== (Sep. 21) radiation from accelerating charges (RL 3.3-3.4)====
+
==== (Sep. 20) 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 CO
 
** Einstein A for CO
  
====(Sep. 26)  molecular lines (RL 11) ====
+
====(Sep. 25)  molecular lines (RL 11) ====
 
* Topics
 
* Topics
 
** [[Atomic and Molecular Quantum Numbers]]
 
** [[Atomic and Molecular Quantum Numbers]]
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* Activities
 
* Activities
 
** distortion in CO
 
** distortion in CO
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps04.pdf Problem Set 4] Assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps04.pdf Problem Set 4] Assigned
  
==== (Sep. 28)  masers ====
+
==== (Sep. 27)  masers ====
 
* Topics
 
* Topics
 
** [[Masers]]
 
** [[Masers]]
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** laser pointers
 
** laser pointers
  
==== (Oct. 3) collisional excitations ====
+
==== (Oct. 2) collisional excitations ====
 
* Topics:
 
* Topics:
 
** [[Collisional Excitations]]
 
** [[Collisional Excitations]]
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** more CO molecular butt
 
** more CO molecular butt
 
** collisional line-driven cooling
 
** collisional line-driven cooling
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps05.pdf Problem Set 5] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps05.pdf Problem Set 5] assigned
  
==== (Oct. 5) free-free emission====
+
==== (Oct. 4) 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. 10) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)====
+
==== (Oct. 9) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)====
 
* Topics:
 
* Topics:
 
** [[Coulomb Focusing]]
 
** [[Coulomb Focusing]]
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* Activities
 
* Activities
 
** timescale for photons/electrons to diffuse through a neutral IGM
 
** timescale for photons/electrons to diffuse through a neutral IGM
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps06.pdf Problem Set 6] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps06.pdf Problem Set 6] assigned
  
==== (Oct. 12) bound-free transitions ====
+
==== (Oct. 11) bound-free transitions ====
 
* Topics
 
* Topics
 
** [[Saha Equation]]
 
** [[Saha Equation]]
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** work out in detail redshift of recombination
 
** work out in detail redshift of recombination
  
====(Oct. 17) No Class====
+
====(Oct. 16) No Class====
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps07.pdf Problem Set 7] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps07.pdf Problem Set 7] assigned
  
==== (Oct. 19) LTE and non-LTE ====
+
==== (Oct. 18) LTE and non-LTE ====
 
* Topics
 
* Topics
 
** [[Milne Relation]]
 
** [[Milne Relation]]
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** estimating recombination coefficients
 
** estimating recombination coefficients
  
====  (Oct. 24)  plasma effects====
+
====  (Oct. 23)  plasma effects====
 
* Topics
 
* Topics
 
** [[Plasma Frequency]]
 
** [[Plasma Frequency]]
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* Activities
 
* Activities
 
** start de-dispersion coding
 
** start de-dispersion coding
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps08.pdf Problem Set 8] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps08.pdf Problem Set 8] assigned
 
** [https://github.com/AaronParsons/astro207/blob/master/pulsar.dat pulsar.dat]
 
** [https://github.com/AaronParsons/astro207/blob/master/pulsar.dat pulsar.dat]
  
==== (Oct. 26) compton scattering ====
+
==== (Oct. 25) compton scattering ====
 
* Topics
 
* Topics
 
** [[Lorentz transformations]]
 
** [[Lorentz transformations]]
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** relativistic intuition, velocity raptor
 
** relativistic intuition, velocity raptor
  
==== (Oct. 31) Inverse Compton scattering====
+
==== (Oct. 30) Inverse Compton scattering====
 
* Topics:
 
* Topics:
 
** [[Inverse Compton Scattering]]
 
** [[Inverse Compton Scattering]]
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** single scattering versus ensemble scattering
 
** single scattering versus ensemble scattering
 
** compton saturation
 
** compton saturation
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps09.pdf Problem Set 9] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps09.pdf Problem Set 9] assigned
  
==== (Nov. 2) Synchrotron Introduction ====
+
==== (Nov. 1) Synchrotron Introduction ====
 
* Topics:
 
* Topics:
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
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** re-deriving synchrotron critical frequency
 
** re-deriving synchrotron critical frequency
  
==== (Nov. 7) Synchrotron Radiation ====
+
==== (Nov. 6) Synchrotron Radiation ====
 
* Topics
 
* Topics
 
** [[Synchrotron Radiation]]
 
** [[Synchrotron Radiation]]
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** re-deriving synchrotron spectrum
 
** re-deriving synchrotron spectrum
 
** phenomenological description of synchrotron decay
 
** phenomenological description of synchrotron decay
* [https://github.com/AaronParsons/astro207/blob/master/ps_2017/ps10.pdf Problem Set 10] assigned
+
* [https://github.com/AaronParsons/astro207/blob/master/ps_2018/ps10.pdf Problem Set 10] assigned
  
====  (Nov. 9)  Synchrotron Self-Interactions ====
+
====  (Nov. 8)  Synchrotron Self-Interactions ====
 
* Topics
 
* Topics
 
** [[Synchrotron Self-Interactions]]
 
** [[Synchrotron Self-Interactions]]
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**
 
**
  
==== (Nov. 14) dust and grains====
+
==== (Nov. 13) dust and grains====
 
* Topics:
 
* Topics:
 
** [[Dust Absorption and Scattering]]
 
** [[Dust Absorption and Scattering]]
Line 240: Line 240:
 
* Activities
 
* Activities
  
==== (Nov. 16) radiative diffusion ====
+
==== (Nov. 15) radiative diffusion ====
 
* Topics:
 
* Topics:
 
** [[Radiative Diffusion]]
 
** [[Radiative Diffusion]]
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**
 
**
  
==== (Nov. 21) No Class ====
+
==== (Nov. 20) No Class ====
  
==== (Nov. 23) No Class ====
+
==== (Nov. 22) No Class ====
  
==== (Nov. 28) Review 1 ====
+
==== (Nov. 27) Review 1 ====
 
* Review
 
* Review
  
==== (Nov. 30) Review 2 ====
+
==== (Nov. 29) Review 2 ====
 
* Review
 
* Review
  

Revision as of 13:10, 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) spectral line broadening

(Sep. 20) radiation from accelerating charges (RL 3.3-3.4)

(Sep. 25) molecular lines (RL 11)

(Sep. 27) masers

  • Topics
  • Activities
    • masers as transistors
    • laser pointers

(Oct. 2) collisional excitations

(Oct. 4) free-free emission

(Oct. 9) radiative equilibrium (RL 1.7-1.8; Mil 2.3-2.5)

(Oct. 11) bound-free transitions

(Oct. 16) No Class

(Oct. 18) LTE and non-LTE

(Oct. 23) plasma effects

(Oct. 25) compton scattering

(Oct. 30) Inverse Compton scattering

(Nov. 1) Synchrotron Introduction

(Nov. 6) Synchrotron Radiation

(Nov. 8) Synchrotron Self-Interactions

(Nov. 13) dust and grains

(Nov. 15) radiative diffusion

(Nov. 20) No Class

(Nov. 22) No Class

(Nov. 27) Review 1

  • Review

(Nov. 29) 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