Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-23T11:59:17.346Z Has data issue: false hasContentIssue false
  • English
  • Français

UV penetrated clumpy molecular cloud cores

Published online by Cambridge University Press:  03 August 2017

Jürgen Stutzki ,
Reinhard Genzel ,
Urs Graf ,
Andrew I. Harris ,
Amiel Sternberg  and
Rolf Güsten
Jürgen Stutzki
Affiliation:
I. Physikalisches Institut der Universität zu Köln, Zülpicher Straße 77, D-5000 Köln 41, Fed. Rep. of Germany
Reinhard Genzel
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Urs Graf
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Andrew I. Harris
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Amiel Sternberg
Affiliation:
Max-Planck-Institut für Physik und Astrophysik, Institut für extraterrestrische Physik, D-8046 Garching b. München, Fed. Rep. of Germany
Rolf Güsten
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Fed. Rep. of Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Recent observations of sub-mm and far-IR atomic fine structure and molecular rotational lines give evidence that due to the clumpiness of the molecular cloud cores the UV radiation from newly formed stars affects a very large fraction of the cloud material. Direct observations of the clumpy structure in M17 SW allow to derive several parameters of the clump distribution, in particular the clump mass spectrum and the volume filling factor. Implications of these results in regard to star formation are shortly discussed.

Type
Small Scale Structure
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 235 - 244
Copyright
Copyright © Kluwer 1991 

References

Arny, T., and Weissman, P., 1973, Astron. J. 78, 309.CrossRefGoogle Scholar
Blitz, L., 1987, in Physical Processes in Interstellar Clouds, eds. Morfill, G.E. and Scholer, M., (Dordrecht: Reidel), p. 35.CrossRefGoogle Scholar
Boissé, P., 1990, Astron. Astrophys. 228, 502.Google Scholar
Burton, M., Hollenbach, D., and Tielens, A., 1989, Proceedings of 22nd Eslab Symposium on Infrared Spectroscopy in Astronomy, Salamanca, 7-9 Dec. 1988 (ESA SP series).Google Scholar
Burton, M., Hollenbach, D., and Tielens, A., 1990, preprint.Google Scholar
Casoli, F., Combes, F., and Gérin, M., 1984, Astron. Astrophys. 113, 99.Google Scholar
de Jong, T., Dalgarno, A., and Boland, W., 1980, Astron. Astrophys. 91, 68.Google Scholar
Dickey, J.M., and Garwood, R.W., 1989, Astrophys. J. 341, 201.CrossRefGoogle Scholar
Elmegreen, B.G., Lada, C.J., and Dickinson, D.F., 1979, Astrophys. J. 230, 415.CrossRefGoogle Scholar
Evans, N.J., Mundy, L.G., Davis, J.H., and Vanden Bout, P., 1987, Astrophys. J. 312, 344.CrossRefGoogle Scholar
Field, G.B., and Hutchins, J., 1968, Astrophys. J. 153, 737.CrossRefGoogle Scholar
Field, G.B., and Saslaw, W.C., 1965, Astrophys. J. 142, 568.CrossRefGoogle Scholar
Genzel, R., Harris, A.I., Jaffe, D.T., and Stutzki, J., 1988, Astrophys. J. 332, 1043.CrossRefGoogle Scholar
Graf, U.U., Genzel, R., Harris, A.I., Hills, R.E., Russell, A.P.G., and Stutzki, J., 1990, Astrophys. J. Letters, in press.Google Scholar
Ho, T.P.T., and Townes, C.H., 1985, Ann. Rev. Astron. Astrophys. 21, 239.CrossRefGoogle Scholar
Howe, J., Jaffe, D.T., and Genzel, R., 1990, preprint.Google Scholar
Keene, J., Blake, G.A., Phillips, T.G., Huggins, P.J., and Beichman, C.A., 1985, Astrophys. J. 299, 967.CrossRefGoogle Scholar
Lada, E., 1990, Ph.D. Thesis, University of Texas at Austin.Google Scholar
Loren, R.B., 1989, Astrophys. J. 338, 902.CrossRefGoogle Scholar
Martin, H.M., Sanders, D.B., and Hills, R.E., 1984, Monthly Notices Roy. Astron. Soc. 208, 35.CrossRefGoogle Scholar
Mundy, L.G., Snell, R.L., Evans, N.J., Goldsmith, P.F., and Bally, J., 1986, Astrophys. J. 306, 670.CrossRefGoogle Scholar
Nakano, T., 1984, Fund. Phys. 9, 139.Google Scholar
Pérault, M., Falgarone, E., and Puget, J.L., 1985, Astron. Astrophys. 152, 371.Google Scholar
Perry, J.F., and Helfer, H.L., 1972, Astrophys. J. 174, 341.CrossRefGoogle Scholar
Sanders, D.B., Scoville, N.Z., and Solomon, P.M., 1985, Astrophys. J. 289, 373.CrossRefGoogle Scholar
Silk, J., and Takahashi, T., 1979, Astrophys. J. 229, 242.CrossRefGoogle Scholar
Snell, R.L., Mundy, L.G., Goldsmith, P.F., Evans, N.J., and Erickson, N.R., 1984, Astrophys. J. 276, 625.CrossRefGoogle Scholar
Snell, R.L., Goldmith, P.F., Ulich, B.L., Lada, C.J., Martin, R., and Schulz, A., 1986, Astrophys. J. 304, 780.CrossRefGoogle Scholar
Spitzer, L., 1982, Searching between the Stars (New Haven: Yale University Press), pp. 148–151.Google Scholar
Sternberg, A., and Dalgarno, A., 1989, Astrophys. J. 338, 197.CrossRefGoogle Scholar
Sternberg, A., 1990, in prep. Google Scholar
Stutzki, J., Stacey, G.J., Genzel, R., Harris, A.I., Jaffe, D.T., and Lugten, J.B., 1988, Astrophys. J. 332, 279.CrossRefGoogle Scholar
Stutzki, J. et al., 1990a, in Submillimetre Astronomy, eds. Watt, G.D. and Webster, A.S. (Dordrecht: Kluwer), p. 269.CrossRefGoogle Scholar
Stutzki, J., et al. 1990b, in preparation.Google Scholar
Stutzki, J., and Güsten, R., 1990, Astrophys. J. 356, 513.CrossRefGoogle Scholar
Taff, L.G., and Savedoff, M.P., 1972, Monthly Notices Roy. Astron. Soc. 160, 89.CrossRefGoogle Scholar
Taff, L.G., and Savedoff, M.P., 1973, Monthly Notices Roy. Astron. Soc. 164, 357.CrossRefGoogle Scholar
Tauber, J.A., and Goldsmith, P.F., 1990, Astrophys. J. Letters 356, L61.CrossRefGoogle Scholar
Tielens, A., and Hollenbach, D., 1985a, Astrophys. J. 291, 722.CrossRefGoogle Scholar
Tielens, A., and Hollenbach, D., 1985b, Astrophys. J. 291, 747.CrossRefGoogle Scholar
Zinnecker, H., 1989, in Evolutionary Phenomena in Galaxies, ed. Beckman, J. (Cambridge: Cambridge University Press), p.115.Google Scholar