1. Stellar Abundance for Galactic Archeology (SAGA) Database and Its Extension for Planet-hosting Stars
Y. Katsuta1), T. Suda1,2), S. Yamada1), N. Nishimura3),
Y. Komiya3), C, Ishizuka1,2), M.Y. Fujimoto1),
M. Takada-Hidai4), Y. Gunji4), H. Toyosawa4)
1) Hokkaido University
2) Keele University
3) National Astronomical Observatory of Japan
4) Tokai University

2. 1. SAGA database Collection of observed data
Suda et al.(2008)
Collection of observed data
taken from the literature on the abundance analyses of metal-poor stars in our Galactic halo
Compilation of adopted stellar parameters, derived abundance data, etc.
using on-line Data Registration System
Access to the data through web browsers
Data retrieval system

3. Contents of SAGA(1) Stars:
Complete collection of published data 　for stars of [Fe/H] ≦-2.5
1305 stars (3208 when duplications included; from 149 papers)
Abundance data
[X/Fe]: 19,185
[X/H]: 22,835
log ε: 22,835
Complete
collection

4. Contents of the SAGA(2) Atmosphere Photometry Equivalent width
Teff, log g, [Fe/H], vturb
Photometry
U, B, V, R, I, J, H, K Magnitudes
Color indexes
Equivalent width
Equivalent width, log gf, Excitation Potential
Isotopic ratio
Binarity
Referenced solar abundances

5. Contents of the SAGA(3) Observing logs:
Object name, position, Observing date, Telescope, Resolution, Typical S/N, Exposure, Radial velocity
Bibliography: Paper title, Author
We can

6. Screen snapshot of SAGA start page
Hyperlink to the data retrieval system

7. Range
Specify X and Y axis
Additional criteria

8. SAGA search result
Retrieved values and available data. Choose one datum if two or more data are available.
Atmospheric parameters adopted for each object and reference
Choose to plot this object

9. Graph plot Automatically generated clickable map
Link to quick preview of each object

10. Abundance distribution of this object
Quick Preview of Data
Link to SIMBAD
Abundance distribution of this object

13. Extension to the metal-rich stars and planet hosts
We have started to extend SAGA for the planet hosts and the metal-rich stars
Compiled data
10 papers
940 (1463) stars
72 PHS,
868 non-PHS
12,156 [X/H] data
UNDER CONSTRUCTION

14. [Fe/H] distribution
□:non-PHS
□:PHS
Number
[Fe/H]
+:non-PHS
△:PHS
Teff
[Fe/H]
Well-known characteristics, high surface metallicity, of the PHSs can be seen

15. Vanadium abundances
Sadakane+2002
Potential trend of overabundance of V (Sadakane et al. 2002, Bodaghee et al. 2006, Gilli 2006)
[V/Fe]
SAGA+
1.0
+:non-PHS
△:PHS
-0.2
-0.5
0.5
[Fe/H]

16. Si abundances [Si/H] [Fe/H] [Fe/H]
Clear overabundance (Robinson et al. 2006)
Underabundance (Gonzalez & Laws 2007)
Robinson+2006
SAGA+
[Fe/H]

17. Cross-reference data plot
[Na/Si] values are internally processed by [Na/Fe] and [Si/Fe]
[Na/Si]
[Fe/H]

18. Summary & Future works SAGA database
Easy to search, plot, and download data
We have started to extend SAGA database into higher metallicity stars and planet host stars
Some important data for metal-rich stars and planet hosts are to be installed in the future
Stellar masses, Planet orbital parameters, Planet masses

19. The new database will
Reveal the characteristics of planet host stars from the element abundances
Reveal the whole history of the star formation and chemical evolution in our Galaxy from the extremely metal-poor stars to the super metal-rich stars
Be open to the public in the near future

21. Ni and Ti abundances
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