MIS: science with VO
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Transcript of MIS: science with VO
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
MIS: science with VOContributions from
F. Boone, C. Bot, J.M. Désert, M.L. Dubernet,F. Le Petit, A. Walters
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Approche Multi-Disciplinaire
Observations/AnalysesSpectres - ImagesModélisations AstrophysiquesPhysico-Chimie des processus microscopiques
Calculs théoriquesRésultats expérimentaux
Thèmes:Physico-Chimie matière proto-stellaire et proto-planétaireSpectroscopie de matière interst. Dans les galaxiesComplexité moléculaireCaractérisation, évolution physico-chimie des grains interstellaires
Herschel, ALMA, APEX, IRAMISO, SpitzerVLT, CFHTHST, FUSE
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Pre – VO work for Spectral Analysis
Assessment of needs and qualityCodes: PDR, radiative transfer for waterSpectroscopic data, Collisional data: working groups for needs Reactive processes: in progress
Build the relevant services including quality control
Basecol: collisional dataCDMS/JPL: MoUCode PDR (cf talk of F. Le Petit)
Design interfaces: CASSIS (A. Walters), ASAP (F. Boone)
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Scientific casesAnalyse d’images multi-longueur d’onde du MIS, émission gaz/poussière dans le petit nuage de Magellan: Caroline BotCodes du MIS dans le VO
Code de simulation: Franck Le PetitBDD physique: M.L. DubernetBDD Spectres FUSE: Jean Michel DésertSoftware CASSIS: Adam WaltersSoftware ASAP: Frédéric Boone
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Spectral Line Access
Paris Observatory and ESA/ESAC
ML Dubernet, P. Osuna, M. Guanazzi, J. Salgado, E. Roueff
MLD acknowledges support from VO-France, MDA project (F. Genova), Paris Observatory
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Project Overview (1)
Access Atomic/Molecular DB starting with line listsTheoretical (measured or calculated) DBObserved line lists DB
Necessary to access complementary information in order to interpret spectra or model astrophysical media: excitation rate coefficients, etc..Clients: stronger evolution towards public software packages for spectral analysis and on line codes for astro. Simulation
Shared, structured, complete and documented access to AM DBStandardisation O/I, queries, ressources ID
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Overview (2)
Numerous DB are availableAtomic lines: NIST DBs, Kurucz's CD-ROM, Atomic Line List of P. Van Hoof, TOPbase, Kelly Atomic Line DB, VALD, MCHF/MCDHF Collection, D.R.E.A.M, KAERI AMODSMolecular Lines: JPL Spectroscopic DB, CDMS, HITRAN, GEISA, NISTOther DB: IEAE, NIFS, CHIANTI, UMIST, BASECOL, small compilationsObserved databases: ATOMDB, NIST, ...
Identification of Pbs Different DB have similar datasets
DB have different levels of updateLengthy to identify origin of datasets, find all relevant description of data
Useful data for a single astrophysical application are dispersed in various DB
No homogeneous description of data
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Access to Lines: Data Model
Based on fundamental physics, current databases and needs in astrophysicsCurrent DM is centered around line for atom and molecules: electronic, vibrational, rotational transitions (couplings)
Allows for identification ofChemical SpeciesLevel -->Quantum State-->Quantum numbersOrigin and modification of Line
Can be used to model other processes involving transitions because a line corresponds to a transition between two levelsCould be extended to nuclear physics?
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Document status and perspectives
Current version: 0.2 (26/9/2005)
A discussion on several – albeit mostly minor – points is ongoing
Short-term goal: Version 0.3 - agreed by mid-November - will be circulated to the DM group, as well as to atomic and molecular astrophysicists for comments
Ultimate goal: achieve the status of a proposed recommendation by the next InterOp meeting
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Structure
LineLevel
QuantumState
QuantumNumber
Process
Model Model Model
Species
Environment
Chemistry
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Access : Query Parameters SLAP : Simple Line Access Protocol
J. Salgado, P. Osuna, M. Guainazzi, I. Barbarisi, M.L. Dubernet
Currently, version 0.1
By wavelength_min, _max, _midBy species: Fe I, H20, ...
By type of levels (vibration, rotation, ..) Combined with associated processes
Would we allow search of other processes independently of lines? (next version?)
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Access to Lines: questionsRegistry parameters?
Wavelength rangeKeywords = energies, atoms or molecules, processes
Practically how should we proceed ?Some DB will implement VO, otherwise create VO providersCreate Web Services and vizualization tools with filters
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Currently ImplementingBASECOL database: excitation rate coefficients of molecules (rotation, vibration)
Numerical data, documentation, referencesWeb service VOTable outputErrors (for various T and transitions)
Tools for matching Basecol and CDMS/JPL spectroscopic database (necessary for carrying out science)
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Summary Exchange standards for atomic & molecular standardsImplementation for specific databaseTools to handle existing dataRegistries Still not enough to carry out science
Services are needed to complete data sets: using cheap approximations, extrapolations next step for Basecol (only as a webservice) should be provided for other processes
08/11/2005 M.L. Dubernet, Obernai - VO School - Introduction et BDD de Physique
Contacted peoplePhysicists, Databases,
AstronomersGEISA: N. Husson-Jacquinet
HITRAN: L. Rothman
CDMS: S. Schlemmer
JPL: J. Pearson
UMIST: T. Millar
CHIANTI: P. Young
DREAM: P. Quinet
TOPBase: C. Zeippen
NIST: F. Lovas, Y. Ralchenko
NIFS: T. Kato
IEAE: B. Clark
KAERI: Y.-J. Rhee
ATOMDB: N. BrickhouseD. SchwenkeJ. TennysonA bunch of french spectroscopistsJ. Aboudarham (solar)B. Plez (stars)J. Cernicharo (ISM)F. Valdes (calibration package)