Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-28T05:38:19.753Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic fields and the dynamics of molecular clouds

Published online by Cambridge University Press:  03 August 2017

J. L. Puget
J. L. Puget*
Affiliation:
Institut d'Astrophysique Spatiale, Bat. 120, Universit é Paris Sud, F-91405, Orsay, France

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.

Magnetic fields are believed to play an important role in the star formation process. Correlations in the velocity field in molecular filaments are indicative of dynamical interactions between clouds and parts within a cloud. The magnetic field is a likely candidate as the vector of such interactions. Perturbations of the field at large scales can feed the velocity dispersion within condensations at small scale. This mechanism is discussed in the framework of two simple analytical approximations describing transverse waves fed into plane parallel slabs.

Keywords

Molecular clouds evolutionAlfvèn WavesMagnetic fieldFilamentary structureTurbulence
Type
Velocity Field and Magnetic Field
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 75 - 81
Copyright
Copyright © Kluwer 1991 

References

Arons, J. and Max, C.E., 1975, Ap.J. Lett. 196, L77.CrossRefGoogle Scholar
Bonazzola, S., Falgarone, E., Heyvaerts, J., Pérault, M., and Puget, J.L. 1987, Astron. Astrophys. 172, 293 Google Scholar
Bonazzola, S., Pérault, M., Puget, J.L., Heyvaerts, J., Falgarone, E., 1990, submitted to Journal of Fluid Mechanics.Google Scholar
Clifford, P. and Elmegreen, B.G. 1983, M. N. R. A. S., 202, 629 Google Scholar
Elmegreen, B.G. 1985, in Birth and infancy of stars ed. Lucas, R., Omont, A., and Stora, R., North Holland Physics Pub., p.215 Google Scholar
Falgarone, E., Puget, J.L. 1986, Astron. Astrophys. 162, 235 Google Scholar
Falgarone, E., Puget, J.L., Pérault, M., 1991, in preparation.Google Scholar
Gispert, R., Puget, J.L., Bonazzola, S., 1991, in preparation.Google Scholar
Heiles, C., 1988, Ap.J. 324, 321 Google Scholar
Li, H.S. and Zweibel, E.G., 1987, Ap.J. 322, 248 Google Scholar
Lioure, A. and Chièze, 1990, Astron. Astrophys. 235, 379.Google Scholar
Loren, R.B. 1989, Ap.J. 338, 925.Google Scholar
Maddalena, R.J., and Thaddeus, P., 1985, Ap.J., 294, 231.Google Scholar
McKee, C., Zweibel, E.G., Goodman, A.A. and Heiles, C., 1991, to be published in Protostars and Planets III.Google Scholar
Pérault, M., Falgarone, E. and Puget, J.L. 1985, Astron. Astrophys., 152, 371 Google Scholar
Pérault, M., Falgarone, E. and Puget, J.L. 1986, Astron. Astrophys., 157, 139 Google Scholar
Puget, J.L., 1985, in Birth and infancy of stars, Lucas, R., Omont, A. and Stora, R. Eds., North Holland Physics Pub. Google Scholar
Puget, J.L., Falgarone, E., 1991, in preparation.Google Scholar
Scalo, J., 1987, Interstellar Processes, eds. Hollenbach, D.J. and Thronson, H.A. Google Scholar
Ungerechts, H. and Thaddeus, P., 1987, Ap. J. Suppl. 63, 645.Google Scholar
Zweibel, E.G., and Josafatsson, K. 1983, Ap.J. 270, 511 Google Scholar