Uploaded September 2022 | Updated September 2026, 2 weeks ago
How are photons generated? What can the energy of these photons tell us about how they were created? What is the difference between an emission and absorption spectrum? How are they generated? These are critical tools that are used to analyse the light we receive from stars and galaxies but as you will see there are several mechanisms that can change the spectra.
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References:
en.wikipedia.org/wiki/Stark_effect
http://hyperphysics.phy-astr.gsu.edu/hbase/Atomic/stark.html
chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Quantum_Tutorials_(Rioux)/Approximate_Quantum__Mechanical_Methods/451%3A_First_Order_Degenerate_Perturbation_Theory_-_the_Stark_Effect_of_the_Hydrogen_Atom
thunderbolts.info/tpod/2010/arch10/100209protogalaxies.htm
en.wikipedia.org/wiki/Absorption_spectroscopy
nature.com/articles/1281076a0.pdf
https://122.physics.ucdavis.edu/sites/default/files/files/Zeeman%20Effect/zeeman_effect_guide.pdf
arxiv.org/abs/physics/0512111
aip.scitation.org/doi/10.1063/1.2909127
bibliotecapleyades.net/electric_universe/electric_sky06.htm
https://adsabs.harvard.edu/full/1956ApJ...124..655B
sciencedirect.com/topics/chemistry/bremsstrahlung
researchgate.net/publication/264561254_Stark_broadening_models_for_plasma_diagnostics
nature.com/articles/140162a0
zuserver2.star.ucl.ac.uk/~pmw/courses/phas2525/S03notes.pdf
MASERS and LASERs
laserfocusworld.com/test-measurement/research/article/16553618/natural-laser-discovered-in-space
iopscience.iop.org/article/10.1070/QE2002v032n12ABEH002349
en.wikipedia.org/wiki/Astrophysical_maser
sciencedirect.com/science/article/abs/pii/S0167732214002141
00:00 Introduction
00:31 Emission spectrum
01:24 Absorption spectrum
03:41 Forbidden lines
05:25 Stimulated emissions
06:25 Zeeman effect
07:30 Stark effect
09:27 Bremsstrahlung
10:35 Synchrotron radiation
10:50 Cyclotron radiation
11:01 Free-free radiation
11:15 Bound-bound and free-bound radiation
11:31 Gamma emissions
12:11 Beta plus decay
How are photons generated? What can the energy of these photons tell us about how they were created? What is the difference between an emission and absorption spectrum? How are they generated? These are critical tools that are used to analyse the light we receive from stars and galaxies but as you will see there are several mechanisms that can change the spectra.
Please consider supporting this channel through:
patreon.com/seethepattern
paypal.me/seethepattern
Merchandise Available:
shop.spreadshirt.co.uk/see-the-pattern
Follow me on:
facebook.com/SeethePattern
twitter.com/PatternSeethe
References:
en.wikipedia.org/wiki/Stark_effect
http://hyperphysics.phy-astr.gsu.edu/hbase/Atomic/stark.html
chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Quantum_Tutorials_(Rioux)/Approximate_Quantum__Mechanical_Methods/451%3A_First_Order_Degenerate_Perturbation_Theory_-_the_Stark_Effect_of_the_Hydrogen_Atom
thunderbolts.info/tpod/2010/arch10/100209protogalaxies.htm
en.wikipedia.org/wiki/Absorption_spectroscopy
nature.com/articles/1281076a0.pdf
https://122.physics.ucdavis.edu/sites/default/files/files/Zeeman%20Effect/zeeman_effect_guide.pdf
arxiv.org/abs/physics/0512111
aip.scitation.org/doi/10.1063/1.2909127
bibliotecapleyades.net/electric_universe/electric_sky06.htm
https://adsabs.harvard.edu/full/1956ApJ...124..655B
sciencedirect.com/topics/chemistry/bremsstrahlung
researchgate.net/publication/264561254_Stark_broadening_models_for_plasma_diagnostics
nature.com/articles/140162a0
zuserver2.star.ucl.ac.uk/~pmw/courses/phas2525/S03notes.pdf
MASERS and LASERs
laserfocusworld.com/test-measurement/research/article/16553618/natural-laser-discovered-in-space
iopscience.iop.org/article/10.1070/QE2002v032n12ABEH002349
en.wikipedia.org/wiki/Astrophysical_maser
sciencedirect.com/science/article/abs/pii/S0167732214002141
00:00 Introduction
00:31 Emission spectrum
01:24 Absorption spectrum
03:41 Forbidden lines
05:25 Stimulated emissions
06:25 Zeeman effect
07:30 Stark effect
09:27 Bremsstrahlung
10:35 Synchrotron radiation
10:50 Cyclotron radiation
11:01 Free-free radiation
11:15 Bound-bound and free-bound radiation
11:31 Gamma emissions
12:11 Beta plus decay
