Astrophysics and Space Science

, Volume 48, Issue 2, pp 379–387 | Cite as

Molecule formation and cloud collapse

  • T. J. Millar
  • D. A. Williams


The gravitational collapse of a uniform, nonmagnetic nonrotating, spherically symmetric interstellar gas cloud is studied taking into account the conversion of atomic to molecular hydrogen and appropriate heating and cooling mechanisms. It is shown that this conversion can result in the collapse of an initially stable gas cloud, and that in clouds with masses greater than the Jeans mass the main effect of molecule formation is to alter the temperature distribution inside the clouds.


Hydrogen Temperature Distribution Molecular Hydrogen Gravitational Collapse Molecule Formation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Allen, M. and Robinson, G. W.: 1976,Astrophys. J. 207, 745.Google Scholar
  2. Chu, S. I. and Dalgarno, A.: 1975,J. Phys. Chem. 62, 4009.Google Scholar
  3. Crampin, D. J., Disney, M. J., McNally, D., and Wright, A. E.: 1969,Monthly Notices Roy. Astron. Soc. 45, 423.Google Scholar
  4. Dalgarno, A. and McCray, R. M.: 1972,Ann. Rev. Astron. Astrophys. 10, 375.Google Scholar
  5. Dalgarno, A. and Wright, E. L.: 1972,Astrophys. J. 174, L49.Google Scholar
  6. Duley, W. W.: 1976,Astrophys. Space Sci. 45, 261.Google Scholar
  7. Field, G. B. and Saslaw, W. C.: 1965,Astrophys. J. 142, 568.Google Scholar
  8. Glassgold, A. E. and Langer, L. D.: 1974,Astrophys. J. 193, 73.Google Scholar
  9. Jura, M.: 1976,Astrophys. J. 204, 12.Google Scholar
  10. Kiguchi, M., Suzuki, H., Sato, K., Miki, S., Tomimatsu, A., and Nakagawa, Y.: 1974,Publ. Astron. Soc. Japan 26, 499.Google Scholar
  11. Larson, R. B.: 1972,Monthly Notices Roy. Astron. Soc. 156, 437.Google Scholar
  12. Larson, R. B.: 1973,Ann. Rev. Astron. Astrophys. 11, 219.Google Scholar
  13. McNally, D.: 1971,Rep. Prog. Phys. 34, 71.Google Scholar
  14. McNally, D.: 1975,Mem. Soc. Roy. Sci. Liège (6th Series), 479.Google Scholar
  15. Mouschovias, T. Ch.: 1976a,Astrophys. J. 206, 753.Google Scholar
  16. Mouschovias, T. Ch.: 1976b,Astrophys. J. 207, 141.Google Scholar
  17. Oppenheimer, M. and Dalgarno, A.: 1975,Astrophys. J. 200, 419.Google Scholar
  18. Pöppel, W. G. L.: 1975,Astrophys. Space Sci. 32, 175.Google Scholar
  19. Spitzer, L. and Jenkins, E. B.: 1975,Ann. Rev. Astron. Astrophys. 13, 133.Google Scholar
  20. Spitzer, L. and Cochran, W. D.: 1973,Astrophys. J. 186, L23.Google Scholar
  21. Stecher, T. P. and Williams, D. A.: 1973,Monthly Notices Roy. Astron. Soc. 161, 305.Google Scholar
  22. Stephens, T. L. and Dalgarno, A.: 1973,Astrophys. J. 186, 165.Google Scholar
  23. Suzuki, H., Miki, S., Sato, K., Kiguchi, M., and Nakagawa, Y.: 1976, preprint.Google Scholar
  24. Viala, Y. and Walmsley, C. M.: 1976,Astron. Astrophys. 50, 1.Google Scholar
  25. Watson, W. D.: 1972,Astrophys. J. 176, 103.Google Scholar

Copyright information

© D. Reidel Publishing Company 1977

Authors and Affiliations

  • T. J. Millar
    • 1
  • D. A. Williams
    • 1
  1. 1.Dept. of MathematicsUniversity of Manchester Institute of Science and TechnologyManchesterEngland

Personalised recommendations