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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...).

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slide1
The Seismic Plus Portal

E. Michel, C. Renié, K. Belkacem,M. Abed/ SPACEINN-WP3-meeting-1 21-22/10/2013 Observatoire de Paris

slide2
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
slide3
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
slide4
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)

slide5
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 ...

slide6
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)

slide7
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)
slide8
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)

slide9
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

slide10
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/…

slide11
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?
slide12
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

slide13
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

slide14
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

slide15
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
slide16
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

slide17
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)
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