Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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DUST SHELL MODELS FOR THE YOUNG STELLAR OBJECTS IN GIANT MOLECULAR CLOUDS

  • Song, In-Ok (Department of Astronomy and Space Science, Chungbuk National University) ;
  • Suh, Kyung-Won (Department of Astronomy and Space Science, Chungbuk National University)
  • Published : 2000.06.01
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Abstract

We have modeled the observed spectral energy distributions(SEDs) of young stellar objects (YSOs) in giant molecular clouds (GMCs). We propose the theoretical modles for the dust envelopes around YSOs. The YSOs in a GMC may share the same initial chemical composition. In this paper, we compare the model SEDs with the observations of the YSOs. Dust shells of the YSOs are composed of a mixture of astronomical silicate and graphite grains. We propose the models for the evolution of the GMCs comparing the shape of the SEDs on the IRAS 2-color diagram with the age.

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References

  1. ApJ v.386 Beichman, C. A.;Boulanger, F.;Moshir, M.
  2. ApJ v.450 Carpenter, J. M.;Snell, R. L.;Schloerb, F. P.
  3. ApJS v.75 Clark, F. O.
  4. MNRAS v.169 Cohen, M.
  5. ApJS v.41 Cohen, M.;Kuhi, L. O.
  6. MNRAS v.247 Davies, J. K.;Evans, A.;Bode, M. F.;Whittet, D. C. B.
  7. ApJ v.285 Draine, B. T.;Lee, H. M.
  8. ApJ v.224 Elias, J. H.
  9. ApJ v.224 Elias, J. H.
  10. Catalog of Infrared Observation(Fourth Edition) Gezari, D. Y.;Schmitz, M.;Pitts, P. S.;Mead, J. M.
  11. NASA Conf. Pub. v.3004 Hanner, M. S.
  12. ApJ v.397 Hillenbrand, L. A.;Strom, S. E.;Vrba, F. J.;Keene, J.
  13. AJ v.104 Hughes, J.;Hartigan, P.
  14. Infrared Astronomical Satellite (IRAS) Catalogs and Atlases: Explanatory Supplement Brotzman, L.(ed.)
  15. MNRAS v.287 Ivezic, A.;Elitzur, M.
  16. ApJS v.101 Kenyon, S. J.;Hartmann, L.
  17. AJ v.99 Kenyon, S. J.;Hartmann, L. W.;Strom, K. M.;Strom, S. E.
  18. MNRAS v.280 Lawson, W. A.;Feigelson, E. D.;Huenemoerder, D. P.
  19. ApJ v.345 Margulis, M.;Lada, C. J.;Young, E. T.
  20. ApJ v.217 Mathis, J. S.;Rumpl, W.;Nordsieck, K. H.
  21. ApJ v.319 Myers, P. C.;Fuller, G. A.;Mathieu, R. D.;Beichman, C. A.;Benson, P. J.;Schild, R. E.;Emerson, J. P.
  22. A&A v.261 Ossenkopf, V.;Henning, Th.;Mathis, J. S.
  23. A&A v.194 Pegourie, B.
  24. MNRAS v.254 Prusti, T.;Whittet, D. C. B.;Wesselius, P. R.
  25. A&A v.260 Prusti, T.;Whittet, D. C. B.;Assendorp, R.;Wesselius, P. R.
  26. ApJS v.30 Rydgren, A. E.;Strom, S. E.;Strom, K. M.
  27. AJ v.86 Rydgren, A. E.;Vrba, F. J.
  28. ApJ v.370 Schwartz, R. D.;Gyulbudaghian, A. L.;Wilking, B. A.
  29. ApJS v.71 Strom, K. M.;Newton, G.;Strom, S. E.;Seaman, R. L.;Carrasco, L.;Cruz Gonzalez, I.;Serrano, A.;Grasdalen, G. L.
  30. ApJS v.78 Weaver, W. B.;Jones, G.
  31. ApJ v.340 Wilking, B. A.;Lada, C. J.;Young, E. T.
  32. A&A v.199 Zhang, C. Y.;Lqureijs, R. J.;Colark, F. O.;Wesselius, P. R.