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Hot Cores and Cold Grains

Published online by Cambridge University Press:  07 August 2017

C. M. Walmsley  and
P. Schilke
C. M. Walmsley
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, F.R. Germany
P. Schilke
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, F.R. Germany

Abstract

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A review is given of the evidence for depletion of heavy elements in dense molecular cloud clumps onto dust grain surfaces. Particular attention is given to the recent controversy over the nature of the dense clumps in NGC 2024. We also discuss recent ammonia observations of“hot core” regions and evidence that the NH3 abundance is greatly enhanced.

Type
Quiescent Clouds and Regions of Star Formation
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 251 - 258
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

Brown, P.D., Charnley, S.B., Millar, T.J. 1988 Monthly Notices Roy. Astron. Soc. , 231, 409.Google Scholar
Brown, P.D., Millar, T.J. 1989 Monthly Notices Roy. Astron. Soc. , 237, 661.Google Scholar
Cesaroni, R., Walmsley, C.M., Churchwell, E. 1991 Astron. Astrophys. (in press).Google Scholar
Cesaroni, R., Walmsley, C.M. 1992 Astron. Astrophys. (in press).Google Scholar
Churchwell, E., Walmsley, C.M., Cesaroni, R. 1990 Astron. Astrophys. Suppl. , 83, 119.Google Scholar
Gaume, R., Johnston, K.J., Wilson, T.L. 1991 Astrophys. J. (in press).Google Scholar
Genzel, R., Stutzki, J. 1989 Ann. Rev. Astron. Astrophys. 27, 41.Google Scholar
Grim, R.J.A., Baas, F., Geballe, T.R., Greenberg, J.M., Schutte, W. 1991 Astron. Astrophys. 243, 473 Google Scholar
Hartquist, T.W., Williams, D.A. 1990 Monthly Notices Roy. Astron. Soc. , 247, 343.Google Scholar
Hermsen, W., Wilson, T.L., Walmsley, C.M., Henkel, C. 1988 Astron. Astrophys. 201, 285.Google Scholar
Mauersberger, R., Henkel, C., Wilson, T.L., Walmsley, C.M. 1986 Astron. Astrophys. 162, 199.Google Scholar
Mauersberger, R., Wilson, T.L., Mezger, P.G., Gaume, R., Johnston, K.J. 1991 Astron. Astrophys. (in press).Google Scholar
Mezger, P.G., Chini, R., Kreysa, E., Wink, J.E., Salter, C.J. 1988 Astron. Astrophys. 191, 44.Google Scholar
Mezger, P.G., Sievers, A.W., Haslam, C.G.T., Kreysa, E., Lemke, R., Mauersberger, R., Wilson, T.L. 1991 Astron. Astrophys. (in press).Google Scholar
Pineau des Forêts, G., Flower, D.R., Millar, T.J. 1992 Monthly Notices Roy. Astron. Soc. (submitted) Google Scholar
Prasad, S.S., Tarafdar, S.P. 1983 Astrophys. J. , 267, 603.Google Scholar
Schilke, P., Walmsley, C.M., Mauersberger, R. 1991 Astron. Astrophys. 247, 487.Google Scholar
Schulz, A., Güsten, R., Zylka, R., Serabyn, E. 1991 Astron. Astrophys. 246, 570.Google Scholar
Sievers, A.W., Mezger, P.G., Gordon, M.A., Kreysa, E., Haslam, C.G.T., Lemke, R. 1991 Astron. Astrophys. (in press) Google Scholar
Tielens, A. 1989 p239 in Interstellar Dust , Proceedings of IAU Symposium 135, (ed. Allamandola, L.J., Tielens, A.G.G.M.; publ. Kluwer).Google Scholar
Vogel, S.N., Genzel, R., Palmer, P. 1987 Astrophys. J. , 316, 243.Google Scholar
Walmsley, C.M. 1991 in Fragmentation of Molccular Clouds and Star Formation , IAU Symposium 147, (ed. Falgarone, E. et al.)Google Scholar
Whittet, D.C.B., Duley, W.W. 1991 The Astron. and Astrophys. Review , 2, 167.Google Scholar
Wilson, T.L., Walmsley, C.M. 1989 The Astron. and Astrophys. Review , 1, 141.Google Scholar