The Unsolved Problem of Star Formation: Dusty Dense Cores and the Origin of Stellar Masses

  • Charles J. Lada
Conference paper
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)


The development of a predictive theory of star formation is one of the prime goals of modern astrophysics. The problem of star formation is a very complex one and its solution depends critically on empirical data. In this contribution, I review some of the progress that has been achieved in identifying and measuring the fundamental boundary and initial conditions that constrain the solution and must be met by any complete theory of star formation. In particular, I discuss what is known about the stellar IMF and the nature of dense cores on the verge of star formation. I then discuss how these two topics contribute to our general understanding of the origin of stellar mass, the key mystery in the star formation process.


Star Formation Molecular Cloud Dense Core Embed Cluster Star Formation Process 
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.


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  1. Adams, F. C., & Fatuzzo, M. 1996, ApJ, 464, 256.CrossRefADSGoogle Scholar
  2. Alves, J.F., Lada, C.J., & Lada, E.A. 2001, Nature, 409, 159.CrossRefADSGoogle Scholar
  3. Alves, J., Lombardi, M. & Lada, C.J. 2007, A&A, 462, L17.CrossRefADSGoogle Scholar
  4. Bertoldi, F. & McKee, C.F. 1992, ApJ, 395, 140.CrossRefADSGoogle Scholar
  5. Bonnor, W.B. 1956, MNRAS, 116, 351.ADSMathSciNetGoogle Scholar
  6. Di Francesco, J., Evans, N.J. II, Caselli, P. Myers, P.C., Shirley, Y., Aikawa, Y., & Tafalla, M. 2007 in Protostars & Planets V, eds. B. Reipurth, D. Jewitt & K. Keil (University of Arizona Press, Tucson), p. 17.Google Scholar
  7. Ebert, R. 1955, Zeitschrift fur Astrophysik, 36, 222.ADSGoogle Scholar
  8. Enoch, M. L., et al. 2006, ApJ, 638, 293.CrossRefADSGoogle Scholar
  9. Hotzel, S., Harju, J., & Juvela, M. 2002, A&A, 395, L5.CrossRefADSGoogle Scholar
  10. Kirk, H., Johnstone, D., & Tafalla, M. 2007, ApJ, 668, 1042.CrossRefADSGoogle Scholar
  11. Kirk, H., Johnstone, D., & Di Francesco, J. 2006, ApJ, 646, 1009.CrossRefADSGoogle Scholar
  12. Kroupa, P. 2002, Science, 295, 82.CrossRefADSGoogle Scholar
  13. Lada, C.J. 2006, ApJ, 640, L63.CrossRefADSGoogle Scholar
  14. Lada, C.J. & Lada, E.A, 2003, ARAA, 41, 57.CrossRefADSGoogle Scholar
  15. Lada, C.J., Bergin, E.A., Alves, J.F., & Huard, T.L. 2003, ApJ, 586, 286.CrossRefADSGoogle Scholar
  16. Lada, C.J., Muench, A.A., Rathborne, J., Alves, J., & Lombardi, M. 2008, ApJ, 672, 410.CrossRefADSGoogle Scholar
  17. Larson, R.B. 1981, MNRAS, 194, 809.ADSGoogle Scholar
  18. Lombardi, M., Alves, J., & Lada, C.J. 2006, Astronomy & Astrophysics, 454, 781.CrossRefADSGoogle Scholar
  19. Luhman, K.L. 2004, ApJ, 617, 1216.CrossRefADSGoogle Scholar
  20. Luhman, K.L., Stauffer, J.R., Muench, A.A., Rieke, G.H., Lada, E.A., Bouvier, J., & Lada, C.J. 2003, ApJ, 593, 1093.CrossRefADSGoogle Scholar
  21. Motte, F., Andre, P., & Neri, R. 1998, A&A, 336, 150.ADSGoogle Scholar
  22. Muench, A.A., Lada, E.A., Lada, C.J. & Alves, J.F. 2002, ApJ, 573, 366.CrossRefADSGoogle Scholar
  23. Muench, A.A., Lada, C.J., Rathborne, J.M., Alves, J.F., & Lombardi, M. 2007, ApJ, 671, 1820.CrossRefADSGoogle Scholar
  24. Myers, P.C. 1999 in The Origin of Stars and Planetary Systems, eds. C.J. Lada & N.D. Kylafis, (Kluwer, Dodrecht), p. 67.Google Scholar
  25. Rathborne, J.M., Lada, C.J., Muench, A.A., Alves, J.F., & Lombardi, M. 2008, ApJS, 174, 396.CrossRefADSGoogle Scholar
  26. Salpeter, E. E. 1955, ApJ, 121, 161.CrossRefADSGoogle Scholar
  27. Scalo, J.M. 1978, in Protostars and Planets, ed. T. Gehrels, (University of Arizona Press, Tucson), p. 265.Google Scholar
  28. Testi, L., & Sargent, A.I. 1998, ApJ, 508, L91.CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media, B.V. 2009

Authors and Affiliations

  • Charles J. Lada
    • 1
  1. 1.Harvard-Smithsonian Center for AstrophysicsCambridgeUSA

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