170 likes | 298 Views
The Seismic Plus Portal. E. Michel, C. Renié, K. Belkacem,M. Abed/ SPACEINN-WP3-meeting-1 21-22/10/2013 Observatoire de Paris. Motivations & Objectives. A large number of seismic data sources (stellar and solar) now available (CoRoT, Kepler, SDO, etc...).
E N D
The Seismic Plus Portal E. Michel, C. Renié, K. Belkacem,M. Abed/ SPACEINN-WP3-meeting-1 21-22/10/2013 Observatoire de Paris
Motivations & Objectives • A large number of seismic data sources (stellar and solar) now available (CoRoT, Kepler, SDO, etc...) • Complementary data also necessary and numerous (spectroscopy, interferometry, etc...) Issue: data bases are scattered and inhomogeneous • Difficult to fully exploit, need for visibility • Hinders a broad community use of seismic data Major objectives of the Portal: • Coordinated access to the large variety of data sources available • Provide tools to handle and combine data for a broad scientific community
Motivations & Objectives The Seismic Plus is intended to gather in a same well identified place: • Homogeneous description of the data available from various sources: - sources of seismic data (space or ground-based) for stars and the Sun - sources of complementary data (space or ground-based) commonly used in complement to seismic data to lead interpretational studies (e.g. fund parameters, astrometric & spectroscopic sources, models & numerical simulation sources…) • Tools to access and combine data from these different sources and possibly produce new outputs
The Portal overall architecture Three different levels have been defined (L0,L1,L2) L0: Standard description of the data sources L1: Where-is-what? (WIW) L2: Data Access & Handling Access to databases Data Handling (tools)
The Portal overall architecture – L0 L0: Description of the data sources and tools available at the Portal • This level is intended to provide us with a standard and homogeneous description of available databases and tools available at the Portal - L0.0 : a ‘multi-approach’ presentation Considering the potentially large number of sources, presentation according to keywords… • For each data source, two sub-levels of description are considered: - L0.1 : Some general text explaining the main content of the database (following a standard scheme tbd) e.g.: The GAUDI database provides access to high resolution spectra collected between XX/XX/XX and XX/XX/XX, in the framework of the COROT Ground-Based Seismology Programme, it contains ...
The Portal overall architecture – L0 L0: Description of the data sources and tools available at the Portal - L0.1.1 : Field descriptions e.g.: description of the fields as a table needs some VO stuff screen shot of the field description of KEPLER KOI (http://archive.stsci.edu/search_fields.php?mission=kepler_koi)
L0 - Census of data sources: • Time series: CoRoT archive -- KASOC archive / Kepler archive -- Ground-based CoRoT complementary archive -- SOHO -- SOHO/VIRGO/PMO6V -- SOHO/VIRGO/DIARAD -- SOHO/VIRGOS/SPM –SOHO/Golf-SOHO/MDI -- SOHO/…LASCO,CELIAS/MTOF/PM/CTOF/STOF/HSTOF/SEM…? -- SDO -- SDO/HMI -- SDO/AIA ? -- SDO/… -- GONG -- Bison -- MARK-I • Fundamental parameters:(Teff, Fe/H, L,pi,…) PASTEL -- APOGEE -- P2F -- Hipparcos&Tycho catalogue –(GAIA) -- SSI Stellar Seismic Indices • Spectra: (observed & theoretical): APOGEE (Sloan Digital Survey) -- GAUDI -- Gaia ESO Survey (GES) -- TBL Legacy -- POLLUX • Stellar models:(Teff, Fe/H, L,pi,…) Stellar and solar models and oscillation parameters • In blue, database within the SPACEINN project • CF list circulated for inquiry within SpaceInn consortium (aug. 2013)
L0 - Census of tools available in the Portal: • Tools will appear at different levels of the portal • They will be whether implemented in the portal or an access will be provided for already existing tools Examples : - Tools to be implemented: a broad community will be interested in accessing seismic estimates of masses, radii for a large number of stars SSI (seismic indices) Output = seismic masses, radii Tool = scaling relations Database of ground-based obs (Teff)
L0 - Census of tools available in the Portal: Examples : visualize specific data to evaluate their interest (look at a spectrum, an image, a time series…) - Already existing tools: One can use already existing tools such as TOPCAT (Tool for OPerations on Catalogues And Tables, http://www.star.bris.ac.uk/~mbt/topcat/) The portal will use/give access to this tool - no implementation needed
The Portal overall architecture – L1 L1: Where-Is-What? (WIW) For a given request (e.g., a list of stars), it provides (at least): - list of sources where data exist, - Access to description of the source content The Gaudi data base providesaccess to high resolutionspectracollectedfrom XX/…
Possible types of requests – L1 • For stars: • List of stars (use of a cross-identifyer, CDS) • Selection by coordinates + magnitude range • Type of star (main-sequence / red-giant / etc...) • Type of variable star (solar-like pulsator / delta-scuti / etc...) • Other? • For the Sun: • period(s) of time • remarquable events(high activity,…) • Obs technique/Spectral domain ? • Coordinates (for resolved observation of the Sun) • Other? • For stars & the Sun: • Data type (e.g. time series / spectro / imagery / etc...) • Other?
The Portal overall architecture – L2 L2: Data access & Handling Data Access from selected sources to : • Visualize specific data to evaluate their interest (look at a spectrum, an image, a time series…) • Download them on his personal computer to exploit them (according to a list, a selection by position or magnitude…) Quick look image: light-curve, spectrum,… if exist Download data from source n Download data for star n
The Portal overall architecture – L2 L2: Data access & Handling Data Handling : • Use tools made available at the portal to produce new output data from the combination or analysis of input data New output TOOL n
The Portal – technical options Portal / Data source interface The Seismic Plus portal Data description Data access Tools VOTable XML ? Query VO standard, protocol and format : • TAP : Table Access Protocol • SSA : Simple Spectra Access • … Specific to data archive Data Access Layer service Data archive
The Portal – technical options VO standard, protocol and format For example Table Access Protocol (TAP) • Defines Web service protocol for accessing general table data: • Data queries for data access • Metadata queries for data description • Testing DaCHS framework (TAP implementation developped by the German VO) • with SSI database. • Visibility in VO registries and VO tools like TOPCAT, VOSPEC • Help to define a common language, vocabulary • Make portal developments and maintenance easier • Knowledge and support from OV-Paris • Location near the database
The Portal – Planning & needs Manpower : • PI: Eric Michel (Kevin Belkacem) • Project Manager: Christian Renié • VO expertise: OVPARIS/Pierre Le Sidaner • Portal develop.: Mahfoudh Abed (CDD SpaceInn) Planning : -deliverable D3.1, month 12: Set of data access and tools to be implemented
The Portal – Planning & needs Deliverables : Planning : • (First) list of data sources and tools -> december 2013 • Need to have balanced (ambitious/reasonable) lists • Need efficient feed-back from data sources managers: YOU + others • Portal Opening (< month 30)