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tests:discs:gc2014_spiralarms [2014/10/28 14:58]
jash2 [Identifying Stellar Motions associating different Spiral Arm Scenarios]
tests:discs:gc2014_spiralarms [2014/10/30 17:07] (current)
sroca
Line 4: Line 4:
 === Who === === Who ===
  
-R. Grand, S. Roca-Fabrega,​ L. Jilkova, C. Martinez-Barbosa,​ H. Abedi+R. Grand, S. Roca-Fabrega,​ L. Jilkova, C. Martinez-Barbosa,​ H. Abedi, J. Hunt
  
 === Objectives === === Objectives ===
Line 11: Line 11:
  
 === 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?​) (Santi13) 
  
--Test particle TWA spiral arms / density wave (Santi14) 
  
--Test particle Ferrers bar + response spiral arms / rigid-body rotation (Manifolds?​) (Merce14/Santi4)+-N-body spiral arms (Nd=5*10^6) / rigid-body rotation (Manifolds?​) (RocaFabrega13) 
 + 
 +In each row: 
 + 
 +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 
 + 
 +data format: (6(f10.3,​1x)) 
 + 
 + 
 +https://​drive.google.com/​file/​d/​0B8sgZGL4aKpSLWc2SGt1SkhLTk0/​view?​usp=sharing 
 + 
 + 
 + 
 +-2D Test particle TWA1 spiral arms (i=8º, Nd=5*10^6) / density wave (RocaFabrega14) 
 + 
 + 
 +In each row: 
 + 
 +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 
 + 
 +data format: (6(f10.3,​1x)) 
 + 
 +https://​drive.google.com/​file/​d/​0B8sgZGL4aKpSdGpfQjM0N3poMWM/​view?​usp=sharing 
 + 
 + 
 +-2D Test particle TWA2 spiral arms (i=15º, Nd=5*10^6) / density wave (RocaFabrega14) 
 + 
 +In each row: 
 + 
 +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 
 + 
 +data format: (6(f10.3,​1x)) 
 + 
 + 
 +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):​ 
 + 
 +In each row: 
 + 
 +G ,Grvs ,Xreal (Kpc),Yreal (Kpc),Zreal (Kpc),​VXreal (Km/s),VYreal (Km/​s),​VZreal (Km/s),Xobs (Kpc),Yobs (Kpc),Zobs (Kpc), VXobs (Km/​s),​VYobs (Km/​s),​VZobs (Km/s) 
 + 
 +Positions and velocities are galactocentric. The Sun is placed at (-8.5,​0,​0)Kpc 
 + 
 +data format: (2(f7.3,​1x),​3(f7.3,​1x),​3(f10.2,​1x),​3(f7.3,​1x),​3(f10.2,​1x)) 
 + 
 +Real values = without errors -Obs values = with Gaia errors 
 + 
 +https://​docs.google.com/​file/​d/​0B8sgZGL4aKpSc3dlUnRKdkszaHM/​edit?​usp=sharing . 
 + 
 + 
 + 
 +-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)
  
--N-body spiral arms / Unbarred Great Design spiral (Debatista14) 
  
 === Codes === === Codes ===
  
 -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.1414508317.txt.gz · Last modified: 2014/10/28 14:58 by jash2