Difference between revisions of "Radiative Processes in Astrophysics"

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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.
 
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 [http://adsabs.harvard.edu/abs/1981PEPI...25..432L Radiatve Processes in Astrophysics] by Rybicki & Lightman.
+
These are a collection of lectures covering topics in an introductory graduate astrophysics course on radiative processes.  The subject matter is loosely drawn from [http://adsabs.harvard.edu/abs/1981PEPI...25..432L 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.
 
At the end of the semester, each student will develop one new lecture on a subject of their choice to add to this website.
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=== Class Code Repository ===
 
=== Class Code Repository ===
 
[http://github.com/AaronParsons/astro207 http://github.com/AaronParsons/astro207]
 
[http://github.com/AaronParsons/astro207 http://github.com/AaronParsons/astro207]
 +
 +
=== Syllabus ===
 +
* [https://github.com/AaronParsons/astro207/blob/main/syllabus.docx Syllabus]
 +
* [https://github.com/AaronParsons/astro207/blob/main/constants/constants.pdf Sheet of constants and equations]
  
 
=== Useful External References ===
 
=== Useful External References ===
Line 22: Line 26:
 
== Topics by Date ==
 
== Topics by Date ==
  
====(Th, Aug. 27) Intro & Electromagnetic Waves (RL 2.1-2.3; Grif 8.1)====
+
====(Aug. 26) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)====
 
* class mechanics
 
* class mechanics
 
** syllabus
 
** syllabus
Line 36: Line 40:
 
*** [[Python Installation and Basic Programming]]
 
*** [[Python Installation and Basic Programming]]
 
*** [[Revision Control]] (class repository)
 
*** [[Revision Control]] (class repository)
 +
*** [[Jupyter Notebooks]] (for visualizations and collaborating)
 +
* Topics
 +
** [[Specific Intensity]]
 +
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/01_Activity_Sheet.ipynb Activity Sheet 1] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/01_Activity_Sheet.ipyn datahub.berkeley.edu])
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/01_Activity_Sheet_Answers.ipynb Activity Sheet 1 solutions]
 +
 +
====(Aug. 31) radiative transport (RL 1.4; Mil 2.1-2.2)====
 +
* Topics
 +
** [[Radiative Transfer Equation]]
 +
** [[Optical Depth]]
 +
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz02.ipynb Activity Sheet 2]
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz02-ans.ipynb Activity Sheet 2 solutions]
 +
** sliding pennies
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps01.pdf Problem Set 1] assigned
 +
** [https://github.com/AaronParsons/astro207/blob/main/vega_spectrum.dat vega_spectrum.dat]
 +
** [https://github.com/AaronParsons/astro207/blob/main/bessel_V.dat bessel_V.dat]
 +
 +
==== (Sep. 2) Maxwell's Equations and Plane Waves ====
 
* Topics
 
* Topics
 
** [[Maxwell Equations]] for Electromagnetic Waves
 
** [[Maxwell Equations]] for Electromagnetic Waves
 
** [[Electromagnetic Plane Waves]]
 
** [[Electromagnetic Plane Waves]]
 
** [[Energy Density]] of Electromagnetic Waves
 
** [[Energy Density]] of Electromagnetic Waves
* Activities
+
** [[Larmor Formula]]
** Astrobaki tour
 
** get accounts / set up environments
 
 
 
====(Tu, Sep. 1) radiative quantities (RL 1.1-1.3; Mil 1.1-1.3)====
 
* Topics
 
** [[Specific Intensity]]
 
** [[Units of radiation]]
 
 
** [[Fourier Transform]]
 
** [[Fourier Transform]]
 
* Activities
 
* Activities
** estimate Bohr Atom decay
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz03.ipynb Activity Sheet 3] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz03.ipynb datahub.berkeley.edu])
** convert photon number density to specific intensity
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz03-ans.ipynb Activity Sheet 3 solutions]
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps01.pdf Problem Set 1] assigned
+
** [https://github.com/AaronParsons/astro207/blob/main/notebooks/Larmor%20Radiation.ipynb Larmor Demo]
** [https://github.com/AaronParsons/astro207/blob/master/vega_spectrum.dat vega_spectrum.dat]
+
** Impedance of free space
** [https://github.com/AaronParsons/astro207/blob/master/bessel_V.dat bessel_V.dat]
 
  
====(Th, Sep. 3) radiative transport (RL 1.4; Mil 2.1-2.2)====
+
====(Sep. 7) scattering and absorption (RL 1.4, 1.7; Mil 2.1-2.2)====
 
* Topics:
 
* Topics:
** [[Radiative Transfer Equation]]
 
** [[Optical Depth]]
 
 
** [[Basic Scattering]]
 
** [[Basic Scattering]]
 +
** [[Central Limit Theorem]]
 +
** [[Random Walks]]
 +
** [[Degeneracy]]
 
* Activities
 
* Activities
** sliding pennies
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz04.ipynb Activity Sheet 4] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz04.ipynb datahub.berkeley.edu])
** tree leaves
+
** photon diffusion
** locust swarm
+
** high beams in fog
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps02.pdf Problem Set 2] Assigned
  
==== (Tu, Sep. 8) thermodynamic equilibrium (RL 1.5)  ====
+
==== (Sep. 9) thermodynamic equilibrium (RL 1.5)  ====
 
* Topics
 
* Topics
 +
** [[Black-Body Radiation]] (and Kirchoff's Law)
 
** [[Boltzmann distribution]]
 
** [[Boltzmann distribution]]
** [[Black-Body Radiation]] (and Kirchoff's Law)
+
** [[Maxwellian velocity distribution]]
 
** [[Local Thermodynamic Equilibrium]]  
 
** [[Local Thermodynamic Equilibrium]]  
** [[Maxwellian velocity distribution]]
 
 
* Activities
 
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz05.ipynb Activity Sheet 5] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz05.ipynb datahub.berkeley.edu])
 
** flipping pennies, rolling dice
 
** flipping pennies, rolling dice
 
** types of temperature
 
** types of temperature
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps02.pdf Problem Set 2] Assigned
 
  
==== (Th, Sep. 10) semi-classical hydrogen ====
+
==== (Sep. 14) semi-classical hydrogen ====
 
* Topics:
 
* Topics:
 
** [[Classical Bohr Atom]]  
 
** [[Classical Bohr Atom]]  
 
* Activities
 
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz06.ipynb Activity Sheet 6] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz06.ipynb datahub.berkeley.edu])
 
** rederivation
 
** rederivation
 
** Rydberg
 
** Rydberg
 
** dipoles/quadrupoles
 
** dipoles/quadrupoles
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps03.pdf Problem Set 3] Assigned
  
====  (Tu, Sep. 15) Einstein coefficients====
+
====  (Sep. 16) Einstein coefficients====
 
* Topics:
 
* Topics:
 
** [[Einstein Coefficients]]
 
** [[Einstein Coefficients]]
 
** [[Radiative Equilibrium]]
 
** [[Radiative Equilibrium]]
 
* Activities
 
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz07.ipynb Activity Sheet 7] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz07.ipynb datahub.berkeley.edu])
 
** estimating Einstein A for Ly-alpha
 
** estimating Einstein A for Ly-alpha
 
** effective photon absorption crosssection
 
** effective photon absorption crosssection
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps03.pdf Problem Set 3] Assigned
 
  
==== (Th, Sep. 17) radiation from accelerating charges (RL 3.3-3.4)====
+
==== (Sep. 21) spectral line broadening====
 +
* Topics
 +
** [[Line Profile Functions]]
 +
** [[Zeeman splitting]]
 +
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz08.ipynb Activity Sheet 8] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz08.ipynb datahub.berkeley.edu])
 +
** what can you learn from a spectral line
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps04.pdf Problem Set 4] Assigned
 +
 
 +
==== (Sep. 23) radiation from accelerating charges (RL 3.3-3.4)====
 
* Topics
 
* Topics
 
** [[Estimating Atomic Transition Strengths]]
 
** [[Estimating Atomic Transition Strengths]]
Line 100: Line 129:
 
** photoexcitation cross-section
 
** photoexcitation cross-section
 
* Activities
 
* Activities
** Einstein A for CO
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz09.ipynb Activity Sheet 9] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz09.ipynb datahub.berkeley.edu])
 +
** Einstein A for He+
  
====(Tu, Nov. 10) molecular lines (RL 11) ====
+
==== (Sep. 28) molecular lines (RL 11) ====
 
* Topics
 
* Topics
** [[Rovibrational Transitions]]
+
** [[Atomic and Molecular Quantum Numbers]]
 +
** [[Rotational Transitions]]
 
* Activities
 
* Activities
**
+
** CO Lecture
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps07.pdf Problem Set 7] Assigned
+
* No Problem Set this week
  
 
+
==== (Sep. 30) rovibrational transitions (RL 11) ====
==== (Tu, Sep. 22) spectral line broadening====
 
 
* Topics
 
* Topics
** [[Line Profile Functions]]
+
** [[Rovibrational Transitions]]
 
* Activities
 
* Activities
** continue molecular cloud of CO derivation
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz11.ipynb Activity Sheet 11] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz11.ipynb datahub.berkeley.edu])
** what can you learn from a spectral line
+
** Cooling with CO
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps04.pdf Problem Set 4] assigned
 
  
==== (Th, Nov. 12)  masers ====
+
====(Oct. 5)  masers ====
 
* Topics
 
* Topics
 
** [[Masers]]
 
** [[Masers]]
 
* Activities
 
* Activities
**
+
** masers as transistors
 +
** laser pointers
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps05.pdf Problem Set 5] assigned
  
==== (Th, Sep. 24) collisional excitations ====
+
==== (Oct. 7) collisional excitations ====
 
* Topics:
 
* Topics:
 +
** [[Detailed Balance]]
 
** [[Collisional Excitations]]
 
** [[Collisional Excitations]]
** [[Detailed Balance]]
 
 
* Activities
 
* Activities
** more CO molecular cloud
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz12.ipynb Activity Sheet 12] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz12.ipynb datahub.berkeley.edu])
 +
** more CO molecular clouds
 
** collisional line-driven cooling
 
** collisional line-driven cooling
  
==== (Tu, Oct. 6) free-free emission====
+
==== (Oct. 12) free-free emission====
 
* Topics
 
* Topics
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
 
** [[Thermal Bremsstrahlung]] (RL 5.1-5.3)
Line 140: Line 172:
 
** free-free polarization
 
** free-free polarization
 
** simulating a free-free interaction
 
** simulating a free-free interaction
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps05.pdf Problem Set 5] assigned
+
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps06.pdf Problem Set 6] assigned
  
==== (W, Oct. 7) radiative equilibrium (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]]
** [[Central Limit Theorem]]
 
 
** [[Thomson Scattering]]
 
** [[Thomson Scattering]]
 
* Activities
 
* Activities
** timescale for photons/electrons to diffuse through a neutral IGM
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz13.ipynb Activity Sheet 13] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz13.ipynb datahub.berkeley.edu])
 +
** electrons in the IGM
  
==== (Th, Oct. 8) bound-free transitions ====
+
==== (Oct. 19) bound-free transitions ====
 
* Topics
 
* Topics
 
** [[Milne Relation]]
 
** [[Milne Relation]]
 
** [[Saha Equation]]
 
** [[Saha Equation]]
 
 
* Activities
 
* Activities
 
** stromgren spheres
 
** stromgren spheres
** recombination coefficients
+
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps07.pdf Problem Set 7] assigned
** work out in detail redshift of recombination
 
  
==== (Tu, Oct. 13) LTE and non-LTE ====
+
==== (Oct. 21) LTE and non-LTE ====
 
* Topics
 
* Topics
** On-the-spot Approximation
+
** [[Recombination Coefficients]]
** statistical equilibrium
+
** [[Review of Equilibria]]
** photoionization equilibrium
 
** collisional ionization equilibrium
 
 
* Activities
 
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz14.ipynb Activity Sheet 14] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz14.ipynb datahub.berkeley.edu])
 
** estimating recombination coefficients
 
** estimating recombination coefficients
 +
** work out in detail redshift of recombination
  
==== (Tu, Oct. 13) Maxwell's Equations and Plane Waves ====
+
==== (Oct. 26)  plasma effects====
* Topics
 
** [[Maxwell Equations]] for Electromagnetic Waves
 
** [[Electromagnetic Plane Waves]]
 
** [[Energy Density]] of Electromagnetic Waves
 
 
 
====  (Th, Oct. 15)  plasma effects====
 
 
* Topics
 
* Topics
 
** [[Plasma Frequency]]
 
** [[Plasma Frequency]]
** dispersion measure
+
** [[dispersion measure]] (RL 8.1)
 
** polarization
 
** polarization
 
** [[Faraday rotation]] (RL 8.1-8.2)
 
** [[Faraday rotation]] (RL 8.1-8.2)
 +
** [[Stokes parameters]]
 
* Activities
 
* Activities
 
** start de-dispersion coding
 
** start de-dispersion coding
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps08.pdf Problem Set 8] assigned
 +
** [https://github.com/AaronParsons/astro207/blob/main/pulsar.dat pulsar.dat]
  
** [https://github.com/AaronParsons/astro207/blob/master/pulsar.dat pulsar.dat]
+
==== (Oct. 28) compton scattering ====
 
 
==== (Tu, Oct. 20) compton scattering ====
 
 
* Topics
 
* Topics
 
** [[Lorentz transformations]]
 
** [[Lorentz transformations]]
Line 193: Line 218:
 
** [[Compton Scattering]]
 
** [[Compton Scattering]]
 
* Activities
 
* Activities
 +
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz15.ipynb Activity Sheet 15] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz15.ipynb datahub.berkeley.edu])
 
** relativistic intuition, velocity raptor
 
** relativistic intuition, velocity raptor
* [https://github.com/AaronParsons/astro207/blob/master/ps_2015/ps06.pdf Problem Set 6] Assigned
+
** CMB coupling via compton
  
==== (Th, Oct. 22) Inverse Compton scattering====
+
==== (Nov. 2) Inverse Compton scattering====
 
* Topics:
 
* Topics:
 
** [[Inverse Compton Scattering]]
 
** [[Inverse Compton Scattering]]
Line 203: Line 229:
 
** single scattering versus ensemble scattering
 
** single scattering versus ensemble scattering
 
** compton saturation
 
** compton saturation
 +
* No problem set
  
==== (Tu, Oct. 27) relativistic transformations====
+
==== (Nov. 4) Synchrotron Introduction ====
 
* Topics:
 
* Topics:
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
 
** [[Introduction to Synchrotron Radiation and Relativistic Beaming]]
** [[Synchrotron Frequency]]
+
<!-- ** [[Synchrotron Frequency]]
** [[Synchrotron Polarization]]
+
** [[Synchrotron Polarization]] -->
 
* Activities
 
* Activities
** re-deriving synchrotron critical frequency
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz16.ipynb Activity Sheet 16] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz16.ipynb datahub.berkeley.edu])
 +
** beaming, superluminal motion, monte carlo compton
  
==== (Th, Oct. 29) synchrotron radiation ====
+
==== (Nov. 9) Synchrotron Radiation ====
 
* Topics
 
* Topics
** [[Synchrotron Power]]
+
** [[Synchrotron Radiation]]
** [[Single Electron Power Spectrum]]
+
<!-- ** [[Single Electron Power Spectrum]]
 
** [[Synchrotron Spectrum]] (RL 6.1-6.8)
 
** [[Synchrotron Spectrum]] (RL 6.1-6.8)
** [[Effect of Cooling Time on Synchrotron Spectra]]
+
** [[Effect of Cooling Time on Synchrotron Spectra]] -->
 
* Activities
 
* Activities
 
** re-deriving synchrotron spectrum
 
** re-deriving synchrotron spectrum
 
** phenomenological description of synchrotron decay
 
** phenomenological description of synchrotron decay
 +
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps09.pdf Problem Set 9] assigned
 +
 +
==== (Nov. 11) No Class (Veterans day) ====
  
==== (Tu, Nov. 3self-absorption ====
+
==== (Nov. 16Synchrotron Self-Interactions ====
 
* Topics
 
* Topics
** [[Synchrotron Self-Absorption]]
+
** [[Synchrotron Self-Interactions]]
** [[Synchrotron Self-Compton]]
+
<!-- ** [[Synchrotron Self-Compton]]  
** [[Compton Catastrophe]]
+
** [[Compton Catastrophe]] -->
 
* Activities
 
* Activities
**
+
** [https://github.com/AaronParsons/astro207/blob/main/quiz_2021/Quiz17.ipynb Activity Sheet 17] (on [http://datahub.berkeley.edu/user-redirect/interact?account=AaronParsons&repo=astro207&branch=main&path=quiz_2021/Quiz17.ipynb datahub.berkeley.edu])
 +
** reading SSC spectra, inferring castrophe
  
==== (Th, Nov. 5) dust and grains====
+
==== (Nov. 18) dust and grains====
 
* Topics:
 
* Topics:
 
** [[Dust Absorption and Scattering]]
 
** [[Dust Absorption and Scattering]]
 
** dust formation/sublimation
 
** dust formation/sublimation
 +
** [[Poynting-Robertson Effect]]
 
* Activities
 
* Activities
**
+
* [https://github.com/AaronParsons/astro207/blob/main/ps_2021/ps10.pdf Problem Set 10] assigned
 +
 
 +
==== (Nov. 23) No Class ====
  
 +
==== (Nov. 25) No Class ====
  
==== (Tu, Nov. 17) radiative diffusion ====
+
==== (Dec. 1) radiative diffusion ====
 
* Topics:
 
* Topics:
** [[Zeeman splitting]]
 
 
** [[Radiative Diffusion]]
 
** [[Radiative Diffusion]]
 
** bolometric radiative equilibrium
 
** bolometric radiative equilibrium
Line 247: Line 282:
 
**
 
**
  
==== (Tu, Dec. 1) high-redshift 21cm radiation====
+
==== (Dec. 2) Review ====
* Topics
 
** [[21cm Transition]]
 
** [[Wouthuysen Field effect]]
 
* Activities
 
** 21cm Maser
 
 
 
==== (Th, Dec. 3) Radiative Transfer Codes/Review 1 ====
 
* Review
 
 
 
==== (Tu, Dec. 8) Review 2 ====
 
 
* Review
 
* Review
  
 
== Misc Topics ==
 
== Misc Topics ==
 +
** [[21cm Transition]]
 
** [[Wouthuysen Field effect]]
 
** [[Wouthuysen Field effect]]
 
** [[Radiative Transfer Codes]]
 
** [[Radiative Transfer Codes]]
 
** [[Frequency Redistribution in Non-Coherent Scattering]]
 
** [[Frequency Redistribution in Non-Coherent Scattering]]
 +
** [[Cherenkov Radiation]]
 +
** [[Monte Carlo Methods]]
 +
** [[Numerical Methods for Ordinary Differential Equations]]
  
 
== Legacy Lecture Notes ==
 
== Legacy Lecture Notes ==

Latest revision as of 10:27, 2 September 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[edit]

http://github.com/AaronParsons/astro207

Syllabus[edit]

Useful External References[edit]

Topics by Date[edit]

(Aug. 26) Radiative Quantities (RL 1.1-1.3; Mil 1.1-1.3)[edit]

(Aug. 31) radiative transport (RL 1.4; Mil 2.1-2.2)[edit]

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

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

(Sep. 9) thermodynamic equilibrium (RL 1.5)[edit]

(Sep. 14) semi-classical hydrogen[edit]

(Sep. 16) Einstein coefficients[edit]

(Sep. 21) spectral line broadening[edit]

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

(Sep. 28) molecular lines (RL 11)[edit]

(Sep. 30) rovibrational transitions (RL 11)[edit]

(Oct. 5) masers[edit]

(Oct. 7) collisional excitations[edit]

(Oct. 12) free-free emission[edit]

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

(Oct. 19) bound-free transitions[edit]

(Oct. 21) LTE and non-LTE[edit]

(Oct. 26) plasma effects[edit]

(Oct. 28) compton scattering[edit]

(Nov. 2) Inverse Compton scattering[edit]

(Nov. 4) Synchrotron Introduction[edit]

(Nov. 9) Synchrotron Radiation[edit]

(Nov. 11) No Class (Veterans day)[edit]

(Nov. 16) Synchrotron Self-Interactions[edit]

(Nov. 18) dust and grains[edit]

(Nov. 23) No Class[edit]

(Nov. 25) No Class[edit]

(Dec. 1) radiative diffusion[edit]

(Dec. 2) Review[edit]

  • Review

Misc Topics[edit]

Legacy Lecture Notes[edit]

  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