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tests:discs:gc2014_spiralarms [2014/10/29 08:35]
sroca
tests:discs:gc2014_spiralarms [2014/10/30 17:07] (current)
sroca
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 === Results === === Results ===
 +
 +Line of sight velocity of an axisymmetric distribution as function of galactic longitude:
 +
 +{{:​tests:​discs:​vlos_helio_axisym.jpeg?​200|}}
 +{{:​tests:​discs:​vlos_helio_axisym_in.jpeg?​200|}}
 +
 +Residual l.o.s. velocity of an axisymetric distribution as function of galactic longitude:
 +
 +{{:​tests:​discs:​vlos_res_axisym.jpeg?​200|}}
 +
 +Substracted rotation curve:
 +
 +{{:​tests:​discs:​rotcurv_axisym.pdf|}}
 +
 +-What we see is the velocity dispersion (no non-axisymmetric structures present in the model)
 +-The asymmetry could be a consequence of the asymmetrical drift (it needs to be tested).
 +
  
 === Data === === Data ===
  
--N-body spiral arms + SPH / corotating (Kawata14)+-N-body spiral arms + SPH (Nd=) / corotating (Kawata14)
 {{tests:​Discs:​90deg.dat}} {{tests:​Discs:​90deg.dat}}
  
  
  
--N-body spiral arms / rigid-body rotation (Manifolds?​) (RocaFabrega13)+-N-body spiral arms (Nd=5*10^6) ​/ rigid-body rotation (Manifolds?​) (RocaFabrega13)
  
 In each row: In each row:
  
-x(Kpc), y(Kpc), z(Kpc), vx(Kpc), vy(Kpc), vz(Kpc)+x(Kpc), y(Kpc), z(Kpc), vx(Km/s), vy(Km/s), vz(Km/s)
  
 Positions and velocities are galactocentric. The Sun is placed at (-11.5,​0,​0)Kpc Positions and velocities are galactocentric. The Sun is placed at (-11.5,​0,​0)Kpc
Line 34: Line 51:
  
  
--Test particle TWA1 spiral arms (i=8º) / density wave (RocaFabrega14)+-2D Test particle TWA1 spiral arms (i=8º, Nd=5*10^6) / density wave (RocaFabrega14)
  
  
 In each row: In each row:
  
-x(Kpc), y(Kpc), z(Kpc), vx(Kpc), vy(Kpc), vz(Kpc)+x(Kpc), y(Kpc), z(Kpc), vx(Km/s), vy(Km/s), vz(Km/s)
  
 Positions and velocities are galactocentric. The Sun is placed at (-8.5,​0,​0)Kpc Positions and velocities are galactocentric. The Sun is placed at (-8.5,​0,​0)Kpc
Line 48: Line 65:
  
  
--Test particle TWA2 spiral arms (i=15º) / density wave (RocaFabrega14)+-2D Test particle TWA2 spiral arms (i=15º, Nd=5*10^6) / density wave (RocaFabrega14)
  
 In each row: In each row:
  
-x(Kpc), y(Kpc), z(Kpc), vx(Kpc), vy(Kpc), vz(Kpc)+x(Kpc), y(Kpc), z(Kpc), vx(Km/s), vy(Km/s), vz(Km/s)
  
 Positions and velocities are galactocentric. The Sun is placed at (-8.5,​0,​0)Kpc Positions and velocities are galactocentric. The Sun is placed at (-8.5,​0,​0)Kpc
Line 59: Line 76:
  
  
 +https://​drive.google.com/​file/​d/​0B8sgZGL4aKpScGRKRnFSdXpyZDg/​view?​usp=sharing
  
  
- +-3D Test particle Ferrers bar + response spiral arms (Nd=5*10^6) ​/ rigid-body rotation (Manifolds?​) (RomeroGomez14):​
--Test particle Ferrers bar + response spiral arms / rigid-body rotation (Manifolds?​) (RomeroGomez14):​+
  
 In each row: In each row:
Line 78: Line 95:
  
  
--N-body spiral arms / Unbarred Great Design spiral (Debatista14)+-N-body spiral arms (Nd=3*10^6) ​/ Unbarred Great Design spiral (Debatista14)
  
 +In each row:  Id(1=disk,​2=bulge),​ x(Kpc), y(Kpc), z(Kpc), vx(Km/s), vy(Km/s), vz(Km/s), Mass (=1)
  
  
Line 85: Line 103:
  
 -Cartesian to equatorial + astrometric proper motions (Carmen) -Cartesian to equatorial + astrometric proper motions (Carmen)
 +
 +https://​github.com/​agabrown/​PyGaia
  
 -Cartesian to observable (Abedi) ​ -Cartesian to observable (Abedi) ​
  
 -L.o.s. tangential and radial velocities (Grand) -L.o.s. tangential and radial velocities (Grand)
- 
- 
- 
  
tests/discs/gc2014_spiralarms.1414571724.txt.gz · Last modified: 2014/10/29 08:35 by sroca