Advertisement

A Possible Mechanism for the Metallicity of the First Generation Star

  • Y. Lu
  • G. Zhao
  • J. R. Shi
Part of the Astrophysics and Space Science Library book series (ASSL, volume 254)

Abstract

We propose that the absence of the metal zero star, the first generation star (FGS), may be explained by the mechanism for metallicity enrichment of a star in the Galaxy based on the host Galaxy’s disk-star interactions. The mechanism involves an accreting of interstellar medium (ISM). The zero metal star may accrete a small amount of metal rich material of the ISM and polluted the star’s composition. We suggest here that the expected degree of the polluted relative average metallicity[Fe/H]of a star may be[Fe] ~ —4.5.

Keywords

Galactic chemical evolution solar neighborhood G-dwarf supernova 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Arnett, W.A. (1971). APJ, 219: 1008–1013ADSCrossRefGoogle Scholar
  2. Beers, T.C., Preston, G.W., Shectman, S.A. (1985). AJ, 90: 2089–2092ADSCrossRefGoogle Scholar
  3. Bondi, H.&Hoyle, F. (1944). MNRAS, 104: 273ADSGoogle Scholar
  4. Carlberg, R.G. (1981). MNRAS, 197: 1021ADSGoogle Scholar
  5. Cayrel, R. (1986). A&A, 168: 81ADSGoogle Scholar
  6. De Marchi, G., & Paresce, F. (1995a). A&A, 304: 202ADSGoogle Scholar
  7. Dwek, E. (1998). APJ, 501: 643ADSCrossRefGoogle Scholar
  8. Eggen, O.J., Lynden-Bell, D. & Sandage, A.R. (1962). APJ, 136: 748ADSCrossRefGoogle Scholar
  9. kamura, F. & Umemura, M. (1999). APJ, 515: 239–248ADSCrossRefGoogle Scholar
  10. Palla, F., Salpeter E.E., & Stahler, S.W. (1983). APJ, 271:632ADSCrossRefGoogle Scholar
  11. Pinsonneault, M.H., Deliyannis, C.P.&Demarque, P. (1992). APJS, 78: 179ADSCrossRefGoogle Scholar
  12. Portinari L., Chiosi, C. & Bressan, A. (1998). A&A, 334: 505 (PCB98)ADSGoogle Scholar
  13. Timmes, F.X., Woosley, S.E., & Weaver, T.A. (1995). APJS, 98: 617 (TWW95)ADSCrossRefGoogle Scholar
  14. Truran, J.W., & Cameron, A.G.W. (1971). APSS, 14: 179ADSGoogle Scholar
  15. Uehara,H., et al. (1996). APJ, 473: L95ADSCrossRefGoogle Scholar
  16. Van der Kruit, P.C. & Searle, L. (1982). A&A, 95: 105Google Scholar
  17. Yoshii, Y. (1981). A&A, 97: 280ADSGoogle Scholar
  18. Yoshii, Y. & saio H. (1979). PASJ, 31: 339ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2000

Authors and Affiliations

  • Y. Lu
    • 1
    • 2
  • G. Zhao
    • 1
  • J. R. Shi
    • 1
  1. 1.Beijing Astronomical ObservatoryChinese Academy of SciencesBeijingChina
  2. 2.Department of PhysicsNormal University of HuazhongWuhanChina

Personalised recommendations