• Choi, Young-Jun (Korea Astronomy Observatory) ;
  • Han, Won-Yong (Korea Astronomy Observatory) ;
  • Park, Jang-Hyun (Korea Astronomy Observatory) ;
  • Brosch, Noah (Dept. of Astronomy and Astrophysics, Tel Aviv University)
  • Published : 1999.12.01


We present the results of a model calculation of the stellar distribution in a UV and centered at 2175$\AA$ corresponding to the well-known bump in the interstellar extinction curve. The stellar distribution model used here is based on the Bahcall-Soneira galaxy model (1980). The source code for model calculation was designed by Brosch (1991) and modified to investigate various designing factors for UV satellite payload. The model predicts UV stellar densities in different sky directions, and its results are compared with the TD-1 star counts for a number of sky regions. From this study, we can determine the field of view, size of optics, angular resolution, and number of stars in one orbit. There will provide the basic constrains in designing a satellite payload for UV observations.



  1. ApJ v.450 Brosch, N.;Almoznino, E.;Leibowitz, E. M.;Netzer, H.;Sasseen, T. P.;Bowyer, S.;Lampton, M.;Wu, X.
  2. ARA&A v.27 Gilmore, G.;Wyse, R. F. G.;Kuijken, K.
  3. CD-ROM 13, ATLAS9 Stellar Atmosphere Programs and 2km $s^{-1}$ Grid Kurucz, R. L.
  4. AJ v.98 Wainscoat, R. J.;Cohen, M.;Volk, K.;Walker, H. J.;Schwartz, D. E.
  5. IAU Symposium v.139 The Galactic and Extragalactic Background Radiation Gondhalekhar, P. M.;S. Bowyer(ed.);C. Leinert(ed.)
  6. A&A v.38 Gondhalekhar, P. M.;Wilson, R.
  7. A&A v.323 Li, A.;Greenberg, J. M.
  8. MNRAS v.184 Nandy, K.;Thompson, G. I.;Carnochan, D. J.;Wilson, R.
  9. A&A v.186 Guideroni, B.;Rocca-Volmerange, B.
  10. ApJ v.321 Fanelli, M. N.;O'Connell, R. W.;Thuan, T. X.
  11. MNRAS v.250 Brosch, N.
  12. MNRAS v.201 Carnochan, D. J.
  13. AJ v.107 Cohen, M.
  14. ARA&A v.17 Savage, B. D.;Mathis, J. S.
  15. ARA&A v.24 Bahcall, J. N.
  16. PhD Thesis, Johns Hopkins University Landsman, W. B.
  17. ApJS v.44 Bahcall, J. N.;Soneira, R. M.
  18. ApJS v.55 Bahcall, J. N.;Soneira, R. M.
  19. JA&SS v.15 Choi, Y.-J.;Han, W.;Kang, Y. W.;Lee W.-B.
  20. MNRAS v.292 Megier, A.;Krelowskyi, J.;Patriarchi, P.;Aiello, S.