International Virtual Observatory Alliance

Difference: TheorySemanticVocabulary (11 vs. 12)

Revision 122011-10-16 - FranckLePetit

  META TOPICPARENT 
  name="InterOpMay2006Theory"
- META TOPICPARENT
+  name="InterOpMay2006Theory"
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+This page is  meant to gather input on properties and possible values for describing simulations and their results. One of the uses of this list is forming a proposal for additions to the UCDs and Semantic  Vocabulary lists of the UCDs working group.
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+The Simulation Data Model relies on concepts organized as SKOS vocabularies. Several vocabularies have been developed by the VO-Theory I.G. Some of them  have been developed thanks to the journals keywords. The astronomical objects vocabulary has been developed by the Semantic working group.
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+This list was started during a meeting of the theory interest group on Tue May 16, by simply writing down terms that were used in a discussion about how to describe simulations. We added a little structure as a first separation for what should end up as UCD or as a word in the "semantic vocabulary".
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+New terms can be added to these vocabularies contacting the VO-Theory I.G. Once sufficiently mature, the process to develop these vocabularies could be supervised by the Semantics W.G. as for the UCDs.
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+The deadline of June 16 set at the interop meeting has passed and a core group has started working on collecting and organising the list into a Note for the Semantics working group.
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+Present vocabularies are :
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+ Algorithms
  Astronomical objects
  Input parameters
  Physical processes
  Physical quantities
  Data object types 
 
UCDs can also be used as valid VO-Theory vocabularies
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+The main official vocabularies can be found at the address : 
 VO-Theory vocabularies
 
The UCDs can also be considered as one of the useable vocabularies.

Webservices have been developed to check the validity of concepts : 

 Check existence of concepts
  Links
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+Starting June 19 2006 we will go through the exercise of further classification and, importantly, finding out which concepts and words already exist in the lists. To this end a few useful links are gathered here
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+ SKOS vocabularies
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+ Ontology of Astronomical Objects
  UCD syntax etc
  UCD1+ controlled vocabulary
  UCD maintenance
  IVOA Standard Vocabulary
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+ UCD and standard vocabulary 
 

 name of code: 
 gadget 2
  zeus
  flash
  cloudy
  ramses
  enzo
  hydra
  starlab
  nbody0..6
  cosmics
  mappings
  vac (versatile advection code = MHD)
  astroBEAR (mhd)
  GALEV, Starburst99, sed@, PEGASE, GALAXEV... (ev. synthesis codes)
  Altlas9 (12), Tlusty, VMBasic, Synthe, Phoenix, Nemo, Basel (atmosphere codes/libararies)
  FRANEC, Geneva, Padova... (evolutionary tracks/isochrones)
  Besancon Galaxy Model
 
 
 

 physical process (primary) 
 radiative transfer
  gravitational dynamics
  GR
  hydrodynamics
  fluid dynamics
  plasma physics
  magneto-hydrodynamics
  stellar evolution (Is it a physical process?)
  stellar population synthesis (physical process or algorithm?)
  photoionization
  photodissociation
 
 
 

 physical process (secondary?) 
 photoionization
  hydrostatic equilibrium (atmosphere?)
 
 
 

 subject 
 star
  stars
  stellar clusters
  galaxy
  volume of space
  accretion disc(k)
  jet
  interstellar medium
  molecular cloud
  atmosphere (of planet, exo-planet, star...)
 
 
 

 type of algorithm: 
 nbody
  mesh
  collisionless
  eulerian grid
  lagrangian grid
  tree
  adaptive refinement mesh
  adaptive refinement tree
  sph
  tree-sph
  pppm
  pm
  pp
  fokker-planck codes
  vlasov solvers
  orbit solver
  pic (particle in cell)
  tree-pm
  scf (self consistent field)
  ffm (fast multipole method)
  schwarzschild
  ppm (piecewise parabolic method)
  plm (piecewise linear method = godunov)
  Isochrone synthesis
  Fuel consuption theorem
  Monte-Carlo
  stellar population synthesis
 
 
 

 time evolution 
 leap frog
  individual timesteps
  static
  adaptative timesteps
  runge-kutta
  symplectic integrator
 
 

 

 algorithmic parameter, including initial and boundary conditions  
 number of particles
  mesh size
  gravitational softening
  box size
  timestep
  cosmological constants
  Teff
  log of surface gravity
  color indices
  distance to the observer
 
 
 

 result type 
 snapshot
  animation
  table
  FITS
  catalogue of objects
  statistics of objects
 
 
 

 result parameters 
 time
  redshift
  metallicity
 
 
 

 Output 
 spectral energy distribution
  fotometric evolution
  luminosity function distribution
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