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tests:collision:gc4:method_comp [2016/10/13 16:24] – [Line-of-sight velocities only] watkinstests:collision:gc4:method_comp [2022/10/24 12:28] (current) – external edit 127.0.0.1
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 ==== M4 mass modelling / method comparison results ==== ==== M4 mass modelling / method comparison results ====
 +
  
  
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 Fit for constant M/L only: 1 free parameter. Fit for constant M/L only: 1 free parameter.
  
-{{:tests:collision:gc4:fit_rv_disp.png?200|}} {{:tests:collision:gc4:fit_ml.png?200|}} {{:tests:collision:gc4:fit_mass.png?200|}}+{{:tests:collision:gc4:rv_ml_fit_mass.png?200|}} {{:tests:collision:gc4:rv_ml_fit_ml.png?200|}} {{:tests:collision:gc4:rv_ml_fit_rv_disp.png?200|}}
  
 === Model 2: constant M/L, constant anisotropy, distance === === Model 2: constant M/L, constant anisotropy, distance ===
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 Fit for constant M/L, constant anisotropy, distance: 3 free parameters. Fit for constant M/L, constant anisotropy, distance: 3 free parameters.
  
-{{:tests:collision:gc4:rv_mlad_fit_rv_disp.png?200|}} {{:tests:collision:gc4:rv_mlad_fit_ml.png?200|}} {{:tests:collision:gc4:rv_mlad_fit_mass.png?200|}}+{{:tests:collision:gc4:rv_mlad_fit_mass.png?200|}} {{:tests:collision:gc4:rv_mlad_fit_ml.png?200|}} {{:tests:collision:gc4:rv_mlad_fit_rv_disp.png?200|}} 
 + 
 +=== Model 3: variable M/L === 
 + 
 +Extra assumptions: 
 +  - distance is known 
 +  - model is isotropic 
 + 
 +Fit for M/L per Gaussian component of SB MGE: 8 MGE components --> 8 parameters. 
 + 
 +{{:tests:collision:gc4:rv_mlvary_fit_mass.png?200|}} {{:tests:collision:gc4:rv_mlvary_fit_ml.png?200|}} {{:tests:collision:gc4:rv_mlvary_fit_rv_disp.png?200|}} 
 + 
 + 
 + 
 +==== Line-of-sight velocities and Proper motions ==== 
 + 
 +=== Model 1: constant M/L, constant anisotropy, distance === 
 + 
 +Extra assumptions: 
 +  - anisotropy is constant 
 +  - M/L is constant 
 + 
 +Fit for constant M/L, constant anisotropy, distance: 3 free parameters. 
 + 
 +{{:tests:collision:gc4:all_mlad_fit_mass.png?200|}} {{:tests:collision:gc4:all_mlad_fit_ml.png?200|}} 
 + 
 +{{:tests:collision:gc4:all_mlad_fit_pmr_disp.png?200|}} {{:tests:collision:gc4:all_mlad_fit_pmt_disp.png?200|}} {{:tests:collision:gc4:all_mlad_fit_rv_disp.png?200|}} 
 + 
 + 
 +=== Model 2: M/L, anisotropy, distance === 
 + 
 +Fit for variable M/L (8 components), variable anisotropy (8 components), distance: 17 free parameters. 
 + 
 +{{:tests:collision:gc4:all_mlavaryd_fit_mass.png?200|}} {{:tests:collision:gc4:all_mlavaryd_fit_ml.png?200|}}
  
 +{{:tests:collision:gc4:all_mlavaryd_fit_pmr_disp.png?200|}} {{:tests:collision:gc4:all_mlavaryd_fit_pmt_disp.png?200|}} {{:tests:collision:gc4:all_mlavaryd_fit_rv_disp.png?200|}}
  
tests/collision/gc4/method_comp.1476375860.txt.gz · Last modified: 2022/10/24 12:28 (external edit)