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Dark cloud observations: Problems and progress

Published online by Cambridge University Press:  25 May 2016

Y. C. Minh
Y. C. Minh*
Affiliation:
Korea Astronomy Observatory, Hwaam, Yusong, Taejon 305-348, Korea

Abstract

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Interstellar dark clouds have provided a laboratory which has been successfully used to identify a number of species, perform high resolution spectroscopy, and characterize the processes in the interstellar medium. We have successfully solved a number of problems and achieved significant progress through dark cloud observations. With the improvement of observing techniques and theories, however, we are now having new problems and are waiting for further progress. The dark clouds, because of their quietness and large column densities, still provide a very useful testing ground of many uncertain interstellar processes. Here we summarize some of the recent progress made in dark cloud observations and discuss related problems. We focus especially on the importance of nearby objects, possible signs of gas-grain interactions in dark clouds, and further sensitive observations.

Type
Star Formation
Information
Symposium - International Astronomical Union , Volume 178: Molecules in Astrophysics: Probes and Processes , 1997 , pp. 173 - 182
Copyright
Copyright © Kluwer 1997 

References

Blake, G. A., Sutton, E. C., Masson, C. R., Phillips, T. G. 1987, ApJ 315, 621.CrossRefGoogle Scholar
Blitz, L., Magnani, L., Mundy, L. 1984, ApJ 282, L9.Google Scholar
Charnley, S. B., Dyson, J. E., Hartquist, T. W., Williams, D. A. 1988, MNRAS 231, 269.CrossRefGoogle Scholar
Falgarone, E., Puget, J. L., Perault, M. 1992, A&A 257, 715.Google Scholar
Goldsmith, P. F., Langer, W. D., Wilson, R. W. 1986, ApJ 303, L11.CrossRefGoogle Scholar
Irvine, W. M., Goldsmith, P. F., Hjalmarson, Å. 1987, in Interstellar Processes, eds. Hollenbach, D. J. & Thronson, H. A. Jr. (Dordrecht: Reidel), p. 561.Google Scholar
Léger, A., Jura, M., Omont, A. 1985, A&A 144, 147.Google Scholar
Magnani, L., Blitz, L., Mundy, L. 1985, ApJ 295, 402.Google Scholar
Millar, T. J., Herbst, E. 1990, A&A 231, 466.Google Scholar
Minh, Y. C., Dickens, J. E., Irvine, W. M., McGonagle, D. 1995, A&A 298, 213.Google Scholar
Minh, Y. C., Irvine, W. M., Ohishi, M., Ishikawa, S., Saito, S., Kaifu, N. 1993, A&A 267, 229.Google Scholar
Minh, Y. C., Irvine, W. M., Ziurys, L. M. 1989, ApJ 345, L63.CrossRefGoogle Scholar
Minh, Y. C., Park, Y.-S., Kim, K.-T., Irvine, W. M., Brewer, M. K., Turner, B. E. 1996, ApJ 467, 717.Google Scholar
Myers, P. C., Benson, P. J. 1983, ApJ 266, 309.Google Scholar
Park, Y.-S., Hong, S. S., Minh, Y. C. 1996, A&A 312, 981.Google Scholar
Poglitsch, A., Herrmann, F., Genzel, R., Madden, S. C., Nikola, T., Timmermann, R., Geis, N., Stacey, G. J. 1996, ApJ 462, L43.Google Scholar
Prasad, S. S., Huntress, W. T. 1982, ApJ 260, 590.CrossRefGoogle Scholar
Tauber, J. A., Goldsmith, P. F., Dickman, R. L. 1991, ApJ 375, 635.CrossRefGoogle Scholar
Turner, B. E. 1996, ApJ 461, 246.Google Scholar
van Dishoeck, E. F., Black, J. H. 1988, ApJ 334, 771.CrossRefGoogle Scholar
Velusamy, T., Kuiper, T. B. H., Langer, W. D. 1995, ApJ 451, L75.Google Scholar
Watson, W. D., Walmsley, C. M. 1982, in Regions of Recent Star Formation, eds. Roger, R. S. & Dewdney, P. E. (Dordrecht: Reidel), p.397.Google Scholar
Willacy, K., Williams, D. A., Minh, Y. C. 1993, MNRAS 263, L40.Google Scholar
Zhou, S., Evans, N. J., Kompe, C., Walmsley, C. M. 1993, ApJ 404, 232.CrossRefGoogle Scholar