The SAMI Galaxy Survey

a prototype data archive for Big Science exploration

I. S. Konstantopoulos*, A. W. Green, C. Foster, N. Scott, J. T. Allen, L. M.R. Fogarty, N. P.F. Lorente, S. M. Sweet, A. M. Hopkins, J. Bland-Hawthorn, J. J. Bryant, S. M. Croom, M. Goodwin, J. S. Lawrence, M. S. Owers, S. N. Richards

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We describe the data archive and database for the SAMI Galaxy Survey, an ongoing observational program that will cover ≈3400 galaxies with integral-field (spatially-resolved) spectroscopy. Amounting to some three million spectra, this is the largest sample of its kind to date. The data archive and built-in query engine use the versatile Hierarchical Data Format (HDF5), which precludes the need for external metadata tables and hence the setup and maintenance overhead those carry. The code produces simple outputs that can easily be translated to plots and tables, and the combination of these tools makes for a light system that can handle heavy data. This article acts as a contextual companion to the SAMI Survey Database source code repository, samiDB, which is freely available online and written entirely in Python. We also discuss the decisions related to the selection of tools and the creation of data visualisation modules. It is our aim that the work presented in this article-descriptions, rationale, and source code-will be of use to scientists looking to set up a maintenance-light data archive for a Big Science data load.

Original languageEnglish
Pages (from-to)58-66
Number of pages9
JournalAstronomy and Computing
Volume13
DOIs
Publication statusPublished - Nov 2015

Keywords

  • Astronomical databases: miscellaneous
  • Methods: miscellaneous
  • Surveys
  • Virtual observatory tools

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