Hostname: page-component-cb9f654ff-mnl9s Total loading time: 0 Render date: 2025-08-24T11:49:34.118Z Has data issue: false hasContentIssue false
  • English
  • Français

SPH simulations of star/planet formation triggered by cloud-cloud collisions

Published online by Cambridge University Press:  01 October 2007

Spyridon Kitsionas ,
Anthony P. Whitworth  and
Ralf S. Klessen
Spyridon Kitsionas
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany email: skitsionas@aip.de
Anthony P. Whitworth
Affiliation:
School of Physics & Astronomy, Cardiff University, P.O. Box 913, CF24 3AA Cardiff, U.K.
Ralf S. Klessen
Affiliation:
Institut für Theoretische Astrophysik, Universität Heidelberg, Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany
Rights & Permissions [Opens in a new window]

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.

We present results of hydrodynamic simulations of star formation triggered by cloud-cloud collisions. During the early stages of star formation, low-mass objects form by gravitational instabilities in protostellar discs. A number of these low-mass objects are in the sub-stellar mass range, including a few objects of planetary mass. The disc instabilities that lead to the formation of low-mass objects in our simulations are the product of disc-disc interactions and/or interactions between the discs and their surrounding gas.

Keywords

hydrodynamicsmethods: numericalstars: formationplanetary systems: protoplanetary disksplanetary systems: formation

References

Barnes, J. & Hut, P. 1986, Nature, 324, 446CrossRefGoogle Scholar
Bate, M. R. & Bonnell, I. A. 2005, MNRAS, 356, 1201CrossRefGoogle Scholar
Bate, M. R. & Burkert, A. 1997, MNRAS, 288, 1060CrossRefGoogle Scholar
Bate, M. R., Bonnell, I. A., & Bromm, V. 2003, MNRAS, 339, 577CrossRefGoogle Scholar
Bate, M. R., Bonnell, I. A., & Price, N. M. 1995, MNRAS, 277, 362Google Scholar
Bhattal, A. S., Francis, N., Watkins, S. J., & Whitworth, A. P. 1998, MNRAS, 297, 435Google Scholar
Bonnell, I. A. & Bate, M. R. 2006, MNRAS, 370, 488CrossRefGoogle Scholar
Chapman, S. J., Pongracic, H., Disney, M. J., Neslon, A. H., Turner, J. A., & Whitworth, A. P. 1992, Nature, 359, 207CrossRefGoogle Scholar
Durisen, R. H., Boss, A. P., Mayer, L., Nelson, A. F., Quinn, T., & Rice, W. K. M. 2007, in: Reipurth, B., Jewitt, D., & Keil, K. (eds.), Protostars and Planets V (Tucson: University of Arizona Press), p. 607Google Scholar
Heitsch, F., Burkert, A., Hartmann, L. W., Slyz, A. D., & Devriendt, J. E. G. 2005, ApJ, 633, L113Google Scholar
Hennebelle, P. & Audit, E. 2007, A&A, 465, 431Google Scholar
Hunter, J. H. Jr., Sandford, M. T. II, Whitaker, R. W., & Klein, R. I. 1986, ApJ, 305, 309Google Scholar
Jappsen, A.-K. & Klessen, R. S. 2004, A&A, 423, 1Google Scholar
Jappsen, A.-K., Klessen, R. S., Larson, R. B., Li, Y., & Mac Low, M.-M. 2005, A&A, 435, 611Google Scholar
Kitsionas, S. & Whitworth, A. P. 2002, MMNRAS, 330, 129Google Scholar
Kitsionas, S. & Whitworth, A. P. 2007, MMNRAS, 378, 507CrossRefGoogle Scholar
Klessen, R. S. 2001a, ApJ, 550, L77Google Scholar
Klessen, R. S. 2001b, ApJ, 556, 837Google Scholar
Klessen, R. S. & Burkert, A. 2000, ApJS, 128, 287CrossRefGoogle Scholar
Klessen, R. S. & Burkert, A. 2001, ApJ, 549, 386Google Scholar
Krumholz, M. R. & McKee, C. F. 2005, ApJ, 630, 250Google Scholar
Krumholz, M. R., McKee, C. F., & Klein, R. I. 2005, Nature, 438, 332 [astro-ph/0510412]Google Scholar
Larson, R. B. 1981, MNRAS, 194, 809Google Scholar
Mac Low, M.-M. & Klessen, R. S. 2004, Rev. Mod. Phys., 76, 125CrossRefGoogle Scholar
Rice, W. K. M., Armitage, P. J., Bate, M. R., & Bonnell, I. A. 2003, MNRAS, 338, 227Google Scholar
Schmeja, S. & Klessen, R. S. 2004, A&A, 419, 405Google Scholar
Schmeja, S. & Klessen, R. S. 2006, A&A, 449, 151Google Scholar
Shu, F. H., Adams, F. C., & Lizano, S. 1987, ARAA, 25, 23CrossRefGoogle Scholar
Stamatellos, D., Hubber, D. A., & Whitworth, A. P. 2007, MNRAS, 382, L30Google Scholar
Truelove, K. J., Klein, R. I., McKee, C. F., Holliman, J. H., Howell, L. H., & Greenough, J. A. 1997, ApJ, 489, L179Google Scholar
Turner, J. A., Chapman, S. J., Bhattal, A. S., Disney, M. J., Pongracic, H., & Whitworth, A. P. 1995, MNARS, 277, 705Google Scholar
Vázquez-Semadeni, E., Ryu, D., Passot, T., González, R. F., & Gazol, A. 2006, ApJ, 643, 245Google Scholar
Vázquez-Semadeni, E., Gómez, G. C., Jappsen, A.-K., Ballesteros-Paredes, J., González, R. F., & Klessen, R. S. 2007, ApJ, 657, 870Google Scholar
Walder, R. & Folini, D. 1998, A&A, 330, L21Google Scholar
Whitworth, A. P., Chapman, S. J., Bhattal, A. S., Disney, M. J., Pongracic, H., & Turner, J. A. 1995, MNARS, 277, 727CrossRefGoogle Scholar
Zinnecker, H. 2001, in: Menzies, J. W., & Sackett, P. D. (eds.), Microlensing 2000: A New Era of Microlensing Astrophysics, ASP Conference Proceedings, Vol. 239 (San Francisco: Astronomical Society of the Pacific), p. 223Google Scholar