ISIMA: Astrophysical Applications of Radiation Transport Mark Krumholz (UC Santa Cruz)
Dec 21, 2015
ISIMA: Astrophysical Applications of Radiation
Transport
Mark Krumholz
(UC Santa Cruz)
Simple Nonmagnetic Shocks
1, T1 2, T2
u1 u2
Upstream Downstream
Shock front
Non-radiating ShockJump Conditions
Mass conservation
Momentum conservation
Energy conservation
Equation of state
Solution to Non-Radiating Shocks
As :
Strongly Radiative Optically Thin Shock
Cooling Shock Structure
Structure of a Molecular Cloud
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Pipe Nebula (Lombardi, Alves, & Lada 2006) -- opticalPipe Nebula (Lombardi, Alves, & Lada 2006) -- extinction
Jump Conditions for Optically Thick Shocks with Radiation
Subcritical Radiative ShocksNon-radiative Radiative subcritical
Taxonomy ofRadiative Shocks
Subcritical Critical SupercriticalRadiation-dominated
Width of a Radiation-Dominated Shock
Example of a Radiative Shock
Ionization Fronts
1, T1 2, T2
u1 u2
Upstream / neutral
Downstream / ionized
Ionization front
J
I-Front Jump Conditions
Allowed Ionization Fronts
Ionization + Shock Fronts
1, T1 2, T2
u1 u2
Shocked / neutral
Downstream / ionized
Ionization front
J
0, T0
u0
Upstream / neutral
Shock front
Spherical I-Front in Uniform Medium: R-Phase
Q0
Ionized
Neutral
RS
Spherical I-Front in Uniform Medium: D-Phase
Q0
Ionized
Neutral
Ri
Dense shell
D-Type Similarity Solution
Similarity solution:
Ionized Region with B Field
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