Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-12-05T02:14:55.385Z Has data issue: false hasContentIssue false
  • English
  • Français

Theoretical Considerations of Shock Wave Behavior

Published online by Cambridge University Press:  14 August 2015

David Hollenbach
David Hollenbach*
Affiliation:
NASA-Ames Research Center, Moffett Field, CA 94035

Extract

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.

Interstellar shock waves have a significant influence on the structure and dynamics of interstellar matter and probably trigger star formation in suitably dense regions. In this paper the overall structure of regions near shock waves is reviewed. In addition we discuss the main observational effects of shocks on interstellar molecules, including: (i) acceleration to velocities 1 km s-1 < vs < 100 km s-1 relative to the ambient gas, (ii) excitation of infrared lines in the heated postshock gas, and (iii) production of high abundances of certain molecular species such as H, OH, H2O, CH+, OCS, and SiO through high temperature chemical reactions in the T ≳ 1000 K postshock gas. The molecular region around the BN infrared source in Orion and the high velocity molecules in IC443 are discussed as possible examples of shocked molecular gas.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 87: Interstellar Molecules , 1980 , pp. 445 - 453
Copyright
Copyright © Reidel 1980 

References

Beck, S., Geballe, T.R., and Lacy, J.: 1979, preprint.Google Scholar
Castor, J., McCray, R., and Weaver, R.: 1975, Ap. J. (Letters) 200, pp. L107-L110.Google Scholar
Dalgarno, A. and Roberge, W.G.: 1979, Ap. J. (Letters) 233, pp. L25-L27.Google Scholar
DeNoyer, L.K.: 1978, M.N.R.A.S. 183, pp. 187-194.Google Scholar
DeNoyer, L.K.: 1979a, Ap. J. (Letters) 228, pp. L41-L44.Google Scholar
DeNoyer, L.K.: 1979b, Ap. J. (Letters) 232, pp. L165-L168.Google Scholar
Elitzur, M. and Watson, W.D.: 1978, Ap. J. (Letters) 222, pp. L141-L144.Google Scholar
Elmegreen, B.G. and Lada, C.J.: 1977, Ap. J. 214, pp. 725-741.Google Scholar
Giovanelli, R. and Haynes, M.D.: 1979, Ap. J. 230, pp. 404-414.Google Scholar
Heiles, C.: 1979, Ap. J. 229, pp. 533-544.Google Scholar
Herbst, W. and Assousa, G.E.: 1977, Ap. J. 217, pp. 473-487.Google Scholar
Hill, J.K. and Hollenbach, D.: 1978, Ap. J. 225, pp. 390-404.Google Scholar
Hollenbach, D., Chu, S-I, and McCray, R.: 1976, Ap. J. 208, pp. 458-467.Google Scholar
Hollenbach, D. and McKee, C.F.: 1979a, Ap. J. Suppl., 41, pp. 555-592.Google Scholar
Hollenbach, D. and McKee, C.F.: 1979b, work in progress.Google Scholar
Hollenbach, D. and Shull, J.M.: 1977, Ap. J. 216, pp. 419-426.Google Scholar
Iglesias, E.R. and Silk, J.: 1978, Ap. J. 226, pp. 851-857.Google Scholar
Kwan, J.: 1977, Ap. J. 216, pp. 713-723.Google Scholar
Lada, C.J., Oppenheimer, M. and Hartquist, T.W.: 1978, Ap. J. (Letters) 226, pp. L153-L156.Google Scholar
London, R., McCray, R. and Chu, S.I.: 1977, Ap. J. 217, pp. 442-447.Google Scholar
Loren, R.B. and Vrba, F.J.: 1979, Sky and Telescope 57, pp. 521-526.Google Scholar
McKee, C.F. and Ostriker, J.P.: 1977, Ap. J. 218, pp. 148-169.Google Scholar
Nadeau, D. and Geballe, T.R.: 1979, Ap. J. (Letters) 230, pp. L169-L174.Google Scholar
Norman, C. and Silk, J.: 1979, preprint.Google Scholar
Shu, F.H., Milione, V. and Roberts, W.W.: 1977, Ap. J. 183, pp. 819-842.Google Scholar
Shull, J.M. and McKee, C.F.: 1979, Ap. J. 227, pp. 131-149.Google Scholar
Solomon, P.M. and Klemperer, W.: 1972, Ap. J. 178, pp. 389-422.Google Scholar
Spitzer, L.: 1968, Diffuse Matter in Space , Interscience, New York, pp. 188-193.Google Scholar
Treffers, R.R.: 1979, Ap. J. (Letters) 233, pp. L17-L19.Google Scholar
Woltjer, L.: 1973, Ann. Rev. of Astron. and Astrophys. 10, pp. 143-145.Google Scholar