Use Case: Multiwavelength analysis of interstellar cloudsDescriptionAn observer gets reduced spectra at different wavelengths towards a molecular cloud and tries to match these spectra by a physico-chemistry model and a radiative transfer model to get physical conditions in the cloud. He searches the registries to find relevant codes (in this case a PDR code and a radiative transfer code). He sends parameters to the PDR code which computes temperature and abundances at each point of the cloud. These results are send to the radiative transfer code which produces the synthetic spectrum to be compared to the observations. Such codes use a lot of atomic and molecular physical data so the codes are linked to databases providing such quantities to stay up to date.Primary actorAstronomerEnd ResultSpectra are obtained from numerical physico-chemistry and radiative modelsSecondary actorSimulatorOther actorsSimulators Atomic and molecular databases in the VOPre ConditionGet spectra in VO formatInter ConditionResults from PDR code are transmitted in VO-Table format to be understood by radiative transfer codePost ConditionResults from radiative transfer code are transmitted in a VO-Spec format to be compared to real spectra in a VO-toolFlow of events
Independent flow of events
Please add comments below. This area should be used for refinement of the above document. If you want to ask questions or start a dialogue with the author, please use the theory mailing list. -- FranckLePetit - 28 Sep 2005 |
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> > | Use Case: Multiwavelength analysis of interstellar cloudsDescriptionAn observer gets reduced spectra at different wavelengths towards a molecular cloud and tries to match these spectra by a physico-chemistry model and a radiative transfer model to get physical conditions in the cloud. He searches the registries to find relevant codes (in this case a PDR code and a radiative transfer code). He sends parameters to the PDR code which computes temperature and abundances at each point of the cloud. These results are send to the radiative transfer code which produces the synthetic spectrum to be compared to the observations. Such codes use a lot of atomic and molecular physical data so the codes are linked to databases providing such quantities to stay up to date.Primary actorAstronomerEnd ResultSpectra are obtained from numerical physico-chemistry and radiative modelsSecondary actorSimulatorOther actorsSimulators Atomic and molecular databases in the VOPre ConditionGet spectra in VO formatInter ConditionResults from PDR code are transmitted in VO-Table format to be understood by radiative transfer codePost ConditionResults from radiative transfer code are transmitted in a VO-Spec format to be compared to real spectra in a VO-toolFlow of events
Independent flow of events
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