Abstract
We review the main results from recent numerical simulations of turbulent fragmentation and star formation. Specifically, we discuss the observed scaling relationships, the “quiescent” (subsonic) nature of many star-forming cores, their energy balance, their synthesized polarized dust emission, the ages of stars associated with the molecular gas from which they have formed, the mass spectra of clumps, and the density and column density probability distribution function of the gas. We then give a critical discussion on recent attempts to explain and/or predict the star formation efficiency and the stellar initial mass function from the statistical nature of turbulent fields. Finally, it appears that turbulent fragmentation alone cannot account for the final stages of fragmentation: although the turbulent velocity field is able to produce filaments, the spatial distribution of cores in such filaments is better explained in terms of gravitational fragmentation.
Similar content being viewed by others
References
Arons, J. and Max, C.E.: 1975, ApJL 196, L77.
Alves, J., Lada, C.J., and Lada, E.A.: 2001, Nature 409, 159.
Avila-Reese, V. and Vázquez-Semadeni, E.: 2001, ApJ 553, 645.
Ballesteros-Paredes, J.: in: M. Avillez and D. Breitschwerdt eds. From Observations to Self-Consistent Modeling of the Interstellar Medium, Astrophysics and Space Science, in press.
Ballesteros-Paredes, J., Hartmann, L., and Vázquez-Semadeni, E.: 1999b, ApJ 527, 285.
Ballesteros-Paredes, J., Klessen, R.S., and Vázquez-Semadeni, E.: 2003. ApJin press.
Ballesteros-Paredes, J. and Mac Low, M.: 2002, ApJ 570, 734.
Ballesteros-Paredes, J. and Vázquez-Semadeni, E.: 1995, Revista Mexicana de Astronomia y Astrofisica Conference Series 3, 105.
Ballesteros-Paredes, J. and Vázquez-Semadeni, E.: 1997, Star Formation Near and Far, 81.
Ballesteros-Paredes, J., Vázquez-Semadeni, E., and Scalo, J.: 1999a, ApJ 515, 286.
Blitz, L. and Shu, F.H.: 1980, ApJ 238, 148
Blitz, L. and Williams, J.P.: 1997, ApJL 488, L145.
Bonazzola, S., Heyvaerts, J., Falgarone, E., Perault, M., and Puget, J.L.: 1987, AA 172, 293.
Bonnor, W.B.: 1956, MNRAS 116, 351.
Brunt, C.: 2003. ApJ 583, 280.
Caselli, P., Benson, P.J., Myers, P.C. and Tafalla, M.: 2002, ApJ 572, 238.
Chandrasekhar, S. and Fermi, E.: 1953, ApJ 118, 116.
Cho, J., Lazarian, A. and Vishniac, E.: 2002, astro-ph/0205286.
Faundez, S., Bronfman, L., Garay, G., Chini, R., May, J., and Nyman, L.: 2003, AA submitted.
Walder, R. and Folini, D.: 1998, AA 330, L21.
Ebert, R.: 1955, Zeitschrift f ür Astrophysik 36, 222.
Elmegreen, B.G.: 1993, in: Protostars and Planets III,p.97.
Elmegreen, B.G.: 1997, ApJ 486, 944.
Evans, N.J., Rawlings, J.M.C., Shirley, Y.L. and Mundy, L.G.: 2001, ApJ 557, 193.
Gammie, C.F., Y.-T. Lin, Y.-T., Stone, J.M., and Ostriker, E.C.: 2003. ApJin press.
Goldreich, P. and Kwan, J.: 1974, ApJ 189, 441.
Goodman, A.A., Barranco, J.A., Wilner, D.J. and Heyer, M.H.: 1998, ApJ 504, 223.
Goodwin, S.P., Whitworth, A.P. and Ward-Thompson, D.: 2004, A&A 414, 633.
Hartmann, L.: 2002, ApJ 578, 914.
Hartmann, L.: 2003, ApJ 585, 398.
Hartmann, L., Ballesteros-Paredes, J. and Bergin, E.A.: 2001, ApJ 562, 852.
Hunter, J.H., Sandford, M.T., Whitaker, R.W. and Klein, R.I.: 1986, ApJ 305, 309.
Heitsch, F., Mac Low, M., and Klessen, R.S.: 2001a, ApJ 547, 280.
Heitsch, F., Zweibel, E.G., Mac Low, M., Li, P. and Norman, M.L.: 2001b, ApJ 561, 800.
Jijina, J., Myers, P.C. and Adams, F.C.: 1999, ApJS 125, 161.
Johnstone, D., Wilson, C.D., Moriarty-Schieven, G., Joncas, G., Smith, G., Gregersen, E. and Fich, M.: 2000, ApJ 545, 327.
Kegel, W.H.: 1989, AA 225, 517.
Klein, R.I. and Woods, D.T.: 1998, ApJ 497, 777.
Klessen, R.S.: 2000, ApJ 535, 869.
Klessen, R.S.: 2001, ApJ 556, 837.
Klessen, R.S., Ballesteros-Paredes, J., Vázquez-Semadeni, E. and Durán-Rojas, C.: 2003. ApJ, submitted.
Klessen, R.S., Heitsch, F., and Mac Low, M.: 2000, ApJ 535, 887.
Kolmogorov, A.N.: 1941, Dokl. Akad. Nauk SSSR 30, 301 (reprinted in Proc. R. Soc. London A434, 9 [1991]).
Kolmogorov, A.N.: 1962, J. Fluid Mech. 13, 82.
Koyama, H. and Inutsuka, S.: 2002, ApJL 564, L97.
Kurtz, S., Cesaroni, R., Churchwell, E., Hofner, P. and Walmsley, C.M.: 2000, in: Protostars and Planets IV,p.299.
Larson, R.B.: 1981, MNRAS 194, 809.
Larson, R.B.: 1985, MNRAS 214, 379.
Larson, R.B.: 2003, Rep. Prog. Phys., submitted.
Li,Y., Klessen, R.S. and Mac Low, M.-M.: 2003. ApJ 592, 975.
Mac Low, M.: 1999, ApJ 524, 169.
Mac Low, M.-M. and Klessen, R.S.: 2003, Rev. Mod. Phys.(astro-ph/0301093).
Mac Low, M., Klessen, R.S., Burkert, A. and Smith, M.D.: 1998, Physical Review Letters 80, 2754.
Molinari, S., Testi, L., Rodríguez, L.F. and Zhang, Q.: 2002, ApJ 570, 758.
Myers, P.C.: 1983, ApJ 270, 105.
Onishi, T., Mizuno, A., Kawamura, A., Ogawa, H. and Fukui, Y.: 1998, ApJ 502, 296
Ostriker, E.C., Stone, J.M. and Gammie, C.F.: 2001, ApJ 546, 980.
Padoan, P.: 1995, MNRAS 277, 377.
Padoan, P., Goodman, A., Draine, B.T., Juvela, M., Nordlund, Å. and Rögnvaldsson, Ö. E.: 2001, ApJ 559, 1005.
Padoan, P. and Nordlund, Å.: 1999, ApJ 526, 279.
Padoan, P. and Nordlund, Åke 2002, ApJ 576, 870.
Padoan, P., Nordlund, A. and Jones, B.J.T.: 1997, MNRAS 288, 145.
Palla, F. and Stahler, S.W.: 2000, ApJ 540, 255.
Palla, F. and Stahler, S.W.: 2002, ApJ 581, 1194.
Passot, T. and Vázquez-Semadeni, E.: 1998, Phys. Rev. E 58, 4501.
Passot, T. and Vázquez-Semadeni, E.: 2003, AA 398, 845.
Sasao, T.: 1973, PASJ 25,1.
Scalo, J.: 1990, ASSL Vol. 162: Physical Processes in Fragmentation and Star Formation, 151.
Scalo, J., Vázquez-Semadeni, E., Chappell, D., and Passot, T.: 1998, ApJ 504, 835.
Shirley, Y.L., Evans, N.J., Rawlings, J.M.C., and Gregersen, E.M.: 2000, ApJS 131, 249.
Shu, F.H., Adams, F.C., and Lizano, S.: 1987, ARAA 25, 23.
Stone, J.M., Ostriker, E.C., and Gammie, C.F.: 1998, ApJL 508, L99.
Taylor, S.D., Morata, O., and Williams, D.A.: 1996, AA 313, 269.
Vázquez-Semadeni, E., Ballesteros-Paredes, J. and Rodriguez, L.F.: 1997, ApJ 474, 292.
Vázquez-Semadeni, E.: 1994, ApJ 423, 681.
Vázquez-Semadeni, E. and García, N.: 2001, ApJ 557, 727.
Vázquez-Semadeni, E., Ballesteros-Paredes, J. and Klessen, R.S.: 2003, ApJL 585, L131.
Vázquez-Semadeni, E., Shadmehri, M. and Ballesteros-Paredes, J.: 2002. ApJsubmitted.
Wada, K. and Norman, C.A.: 2001, ApJ 547, 172.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ballesteros-Paredes, J. Turbulent Fragmentation and Star Formation. Astrophysics and Space Science 292, 193–205 (2004). https://doi.org/10.1023/B:ASTR.0000045018.50154.b0
Issue Date:
DOI: https://doi.org/10.1023/B:ASTR.0000045018.50154.b0