Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
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z~6 i-DROPOUT GALAXIES IN THE SUBARU /XMM-NEWTON DEEP FIELD

  • Published : 2005.06.01
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Abstract

We conducted an extremely wide field survey of z ${\~}$ 6 Lyman break galaxies (LBGs) to precisely derive their bright end surface density overcoming the bias due to cosmic variance. We selected out LBG candidates in the Subaru/ XMM-Newton Deep Survey Field (SXDS) over the total of ${\~}1.0\;deg^2$ sky area down to $z_{AB} = 26.0 ({\ge}3{\sigma},\;2'.0 aperture)$ using i' - z' > 1.5 color cut. This sample alone is likely to be contaminated by M/L/T dwarfs, low-z elliptical galaxies, and z ${\~}$ 6 quasars. To eliminate these interlopers, we estimated their numbers using an exponential disk star count model, catalogs of old ellipticals in the SXDS and other field, and a z${\~}$6 quasar luminosity function. The finally derived surface density of z ${\~}$ 6 LBGs was 165 $mag^{-1}\;deg^{-2}$ down to $z_{AB}$ = 26.0 and shows good agreement with previous results from the narrower field survey of HST GOODS.

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References

  1. Becker, R. H., et al., 2001, AJ, 122, 2850 https://doi.org/10.1086/324231
  2. Bertin, E., & Arnouts, S., 1996, A&AS, 117, 393 https://doi.org/10.1051/aas:1996164
  3. Bouwens, R. J., et al., 2003, ApJ 595, 589 https://doi.org/10.1086/377477
  4. Bouwens, R. J., et al., 2004, ApJ 606, L25 https://doi.org/10.1086/382140
  5. Bruzual, A. G., & Charlot, S., 1993, ApJ, 405, 538 https://doi.org/10.1086/172385
  6. Cruz, K. L., et al., 2003, AJ, 126, 2421 https://doi.org/10.1086/378607
  7. Dickinson, M. E., et al. 2004, ApJ, 600, L99 https://doi.org/10.1086/381119
  8. Fan X. et al., 2001, AJ, 122, 2833 https://doi.org/10.1086/324111
  9. Fan X. et al., 2002, AJ, 123, 1247 https://doi.org/10.1086/339030
  10. Hawley, S. L., et al., 2002, AJ, 123, 3409 https://doi.org/10.1086/340697
  11. Knapp, G. R., et al., 2004, AJ, 127, 3553 https://doi.org/10.1086/420707
  12. Madau, P., 1995, AJ, 441, 18 https://doi.org/10.1086/175332
  13. Miyazaki, M., et al., 2003, PASJ, 55, 1079 https://doi.org/10.1093/pasj/55.6.1079
  14. Nakajima, T., et al., 2000, AJ, 120, 2488 https://doi.org/10.1086/316814
  15. Nakajima, T., et al., 2004, Proc. 13th Cool Stars Workshop, Hamburg, 5-9 July 2004
  16. Reid, I. N., & Gizis, J. E., 1997, AJ, 113, 2246 https://doi.org/10.1086/118436
  17. Sekiguchi, K., 2004, Proc. AAS, 205, 8105
  18. Stanway, E. R., et al., 2004, ApJ, 607, 704 https://doi.org/10.1086/383531
  19. Steidel, C. C., et al., 1996, ApJ, 462, L17 https://doi.org/10.1088/1538-4357/462/1/L17
  20. Steidel, C. C., et al., 1999, ApJ, 519, 1 https://doi.org/10.1086/307363
  21. Yan H., & Windhorst, R. A., 2004, ApJ, 600, Ll https://doi.org/10.1086/381573
  22. Yan H., & Windhorst, R. A., 2004, ApJ, 612, L93 https://doi.org/10.1086/424690
  23. Yan H., et al., 2004, ApJ, 616, 63 https://doi.org/10.1086/424898

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