Database Tools

• Data retrieval subsystem for MW stars
  • Last update of the database on April 10, 2023
  • Last update of the system on April 11, 2018
• Data retrieval subsystem for MW and dwarf galaxies
  • Last update of the database on December 11, 2019
  • Last update of the system on November 9, 2020
• SAGA viewer
  • easy comparison between stars, released on Nov. 2, 2010

Project-based databases

• Data retrieval subsystem for Stars in LAMOST-Subaru Joint Project
  • Original data are taken from “Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. II. Elemental Abundances” by H. Li et al. 2022, ApJ, 931, 147.
  • Last update of the database on November 2, 2023
    • Recompiled from the published version of the paper. Some data were removed, but will be available again in the future update.
  • Uploaded on June 28, 2022
  • See also “Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. I. Survey Design, Follow-up Program, and Binary Frequency” by W. Aoki et al. 2022, ApJ, 931, 146.
• Text data in tsv format

Information

• Readme–Important notes when using the SAGA database
• Information and News on update history (Database covers almost all the papers published by 2019. All the coordinate data (RA and Decl) for MW stars are available since September 21, 2018.)
  • Update history of the database
  • Update history of the data retrieval system
• Tutorial–Tutorial for the data retrieval system
• Data in the SAGA database
  • List of papers
  • List of objects
    • Updated on April 8, 2021
    • We found a bug in the identifications for some of the stars in dwarf galaxies. New IDs have been reallocated for those had erroneous IDs. We apologize for the inconvenience caused by the change of star IDs.
  • Text data in tsv format (all the records)
    • Version April 7, 2021
    • Abundances are in units of [X/H] (including Li where we adopted A(Li)=3.26) normalized by the solar abundances of Asplund et al. (2009).
    • d(X) and f(X) stands for the uncertainties and the upper limits for element X, respectively.
    • New columns: Facility, Resolution, SN, Solar Abundance
      • Facility: observational facilities used to take spectra
      • Resolution: the highest resolving power obtained to take spectra
      • SN: the range of signal-to-noise ratio obtained during the observations with the highest resolving power
      • Solar Abundance: solar abundances adopted to derive [X/H] or log-e(X) in the original paper
  • Text data in tsv format (recommended data set)
    • Version April 7, 2021
    • Abundances are in units of [X/H] (including Li where we adopted A(Li)=3.26) normalized by the solar abundances of Asplund et al. (2009).
    • Recommended list of data, provided by one record for one star, following our priority parameter. See the SAGA paper series IV for the definition of the priority parameter.

SAGA Papers

“The Stellar Abundances for Galactic Archeology (SAGA) Database – Compilation of the Characteristics of Known Extremely Metal-Poor Stars”

Contact Information

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