wiki:u/madams/CollidingFlowsFigures

Version 132 (modified by Erica Kaminski, 10 years ago) ( diff )

Link to Jonathan's Paper: The Effects of Inhomogeneities within Colliding Flows on the Formation and Evolution of Molecular Clouds

Individual Run Views

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Column Density Map with Sinks (left)
In corrected units of n (cm-2)

Inverse Beta Maps (right)
Made by projecting the quantity, inverse beta, through the grid.

Sinks

Total = 4.

x-coordinate y-coordinate z-coordinate Frame first formed Time (Myr)
0.3580301426376783E+02 0.5583260065869881E+02 0.4744728345853505E+02 111 10.989
0.3591948633316569E+02 0.5599960059841729E+02 0.4755724200098079E+02 120 11.88
0.3592038143464333E+02 0.5602448247390073E+02 0.4759416563811598E+02 138 13.662
0.4466503282380260E+02 0.3812302562076298E+02 0.2979888217591489E+02 236 23.364

B vs. n
The gray scale is for the thermal pressure vs density plots, and the color scale is the magnetic pressure vs. density plots. The line is T=10K, dotted line = ram pressure of the flows, and dashed line = initial magnetic pressure.

E vs. t Plots
These are all plots of bulk energy in the collision region over time.


This plot shows each of the energies (grav., mag., kinetic), divided by the initial kinetic energy in the collision region. It shows that the dominant energy in the collision region is kinetic.


This plot shows each of the energies (grav., mag., kinetic), divided by their own initial values, showing how much each of the energies change over time. It shows that the gravitational energy has the steepest growth rate of these 3 energies. The curve reaches a peak plateau at about 10 Myr, coinciding with the formation of the first sink.


This plot shows each of the energies (grav., mag.), divided by the kinetic energy at each time; it is an instantaneous view of the ratio of these energies to the kinetic energy in the collision region. It shows that after the steep growth in gravitational energy (after 10 Myr), the gravitational energy remains only at about 25% the kinetic. The magnetic energy remains a much smaller fraction throughout the simulation.

Streamline Plots (Global vs. local views)
Some example streamline plots




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Column Density Map with Sinks (left) & Inverse Beta Maps (right)

Sink Notes:

  • The number of the sinks that form by the end of this simulate is 4.
  • Here are their positions as seen down the barrel of the flow (see mass1 CDM plots) at final frame:
x-coordinate y-coordinate z-coordinate Frame first formed Time (Myr)
0.1305682043010144E+02 0.3580800770207890E+02 0.4129367537908288E+02 181 17.919
0.2937052647084789E+02 0.2858707153097011E+02 0.4979800440789958E+02 203 20.097
0.1091652250727393E+02 0.3376306960635957E+02 0.3950925227711014E+02 240 23.736
0.1207128507734911E+02 0.3388115980751113E+02 0.5017452402782457E+02 264 26.11
0.8440382620675154E+01 0.3511264544524086E+02 0.3952903168886192E+02 268 26.51

B vs. n
The gray scale is for the thermal pressure vs density plots, and the color scale is the magnetic pressure vs. density plots. The line is T=10K, dotted line = ram pressure of the flows, and dashed line = initial magnetic pressure.

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Column Density Map with Sinks (left) & Inverse Beta Maps (right)

Sink Notes:

  • The number of the sinks that form by the end of this simulate is 1.
  • Here is its position as seen down the barrel of the flow (see mass1 CDM plots) at final frame:
x-coordinate y-coordinate z-coordinate Frame first formed Time (Myr)
0.1032301279173488E+03 0.4004537800939340E+02 0.3379219676015539E+02 138 13.662

B vs. n
The gray scale is for the thermal pressure vs density plots, and the color scale is the magnetic pressure vs. density plots. The line is T=10K, dotted line = ram pressure of the flows, and dashed line = initial magnetic pressure.

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Column Density Map with Sinks (left) & Inverse Beta Maps (right)

Sink Notes:

  • The number of the sinks that form by the end of this simulate is 1.
  • Here is its position as seen down the barrel of the flow (see mass1 CDM plots) at final frame:
x-coordinate y-coordinate z-coordinate Frame first formed Time (Myr)
0.1041261309696830E+03 0.4905580044221398E+02 0.3609678184879078E+02 320 31.68

B vs. n
The gray scale is for the thermal pressure vs density plots, and the color scale is the magnetic pressure vs. density plots. The line is T=10K, dotted line = ram pressure of the flows, and dashed line = initial magnetic pressure.

Table Comparison Views

Spectra: Energies vs. Time

Time-Energy Gravitational Magnetic Kinetic
0 Myr
10 Myr
20 Myr
27 Myr

Spectra: Run vs. Time

Legend:
srho_vx_total = kinetic energy, sBx_Field_total = magnetic energy, SqrtGravEnergy_Field = gravitational energy

Time-Run Shear 0 Shear 15 Shear 30 Shear 60
0 Myr
10 Myr
20 Myr
27 Myr

Column Density & Inverse Beta Maps

Column Density Map with Sinks (left) Inverse Beta Maps (right)
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B vs. n

The gray scale is for the thermal pressure vs density plots, and the color scale is the magnetic pressure vs. density plots. The line is T=10K, dotted line = ram pressure of the flows, and dashed line = initial magnetic pressure.

Shear 0
Shear 15
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Shear 60

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