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The Formation of Binary Stars

Published online by Cambridge University Press:  12 July 2007

C.J. Clarke
C.J. Clarke*
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge, CB3 OHA, U.K. email: cclarke@ast.cam.ac.uk
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Abstract

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I argue that binary star statistics offer the best observational constraints on current hydrodynamical simulations of star forming clusters. In these simulations, clusters form hierarchically from the bottom up, and dynamical interactions, mediated by the presence of circumstellar material, play a vital role at the lowest (few body) level of the hierarchy. Such a scenario produces a rich array of complex multiple systems whose properties are in many respects consistent with observations. I however highlight two areas of current disagreement: the simulations over-produce low mass single stars and under-produce binaries with low mass ratios. It is currently unclear to what extent these shortcomings reflect numerical issues and to what extent the omission of relevant physical processes. I conclude with a theorist's wish list for observational diagnostics that would most meaningfully constrain future modeling efforts.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 337 - 346
Copyright
Copyright © International Astronomical Union 2007

References

Artymowicz, P., 1983, Acta Astron. 33, 223 Google Scholar
Artymowicz, P. Clarke, C., Lubow, S., & Pringle, J., 1991, ApJL 370, 35 CrossRefGoogle Scholar
Bate, M.R., 2000, MNRAS 314, 33.CrossRefGoogle Scholar
Bate, M. & Bonnell, I., 1997, MNRAS 285, 33 CrossRefGoogle Scholar
Bate, M., Bonnell, I., & Price, N., 1995, MNRAS 277, 362 CrossRefGoogle Scholar
Bate, M., Bonnell, I., & Bromm, V., 2002, MNRAS 336, 705.CrossRefGoogle Scholar
Bate, M., Bonnell, I., & Bromm, V., 2003, MNRAS 339, 577.CrossRefGoogle Scholar
Bouy, H., Brandner, W., Martín, E. L., Delfosse, X., Allard, F., & Basri, G, 2003, AJ, 126, 1526 CrossRefGoogle Scholar
Clarke, C., 1995, Ap&SS 223, 73 Google Scholar
Close, L. M., Siegler, N., Freed, M., & Biller, B, 2003, ApJ, 587, 407 CrossRefGoogle Scholar
Correia, S., Zinnecker, H., Ratzka, T., & Sterzik, M., 2006. A&A 459, 909.Google Scholar
Dale, J., Bonnell, I., Clarke, C., & Bate, M., 2005, MNRAS 358, 291 CrossRefGoogle Scholar
Delgado, E., Clarke, C., Bate, M., & Hodgkin, S., 2004, MNRAS 351, 671 Google Scholar
Duquennoy, A. & Mayor, M., 1991, A&A 248, 485 Google Scholar
Eggleton, P. & Kiseleva, L., 1995, ApJ 455, 640 CrossRefGoogle Scholar
Evans, N., 1995, ApJ 445, 393 CrossRefGoogle Scholar
Gammie, C., 2001, ApJ 553, 174 CrossRefGoogle Scholar
Gizis, J.E., Reid, I. N., Knapp, G.R, Liebert, J., Kirkpatrick, J.D., Koerner, D.W., & Burgasser, A.J., 2003, AJ, 125, 3302 CrossRefGoogle Scholar
Goodwin, S. & Kroupa, P., 2005, A&A 439, 565 Google Scholar
Goodwin, S., Whitworth, A. & Ward-Thompson, D., 2004, A&A 423, 169 Google Scholar
Halbwachs, J., Mayor, M., Udry, S., & Arenau, F., 2003, A&A 397, 159 Google Scholar
Krumholz, M., McKee, C., & Klein, R., 2004, ApJ 611, 399 CrossRefGoogle Scholar
Lodato, G., Meru, F., Clarke, C., & Rice, W.K., 2006, MNRAS in pressGoogle Scholar
Martin, E., Barrado, y Navescues, D., Baraffe, I., Bouy, H., & Dahm, S., 2003, ApJ 594, 525 CrossRefGoogle Scholar
Mazeh, T., Goldberg, D., Duquennoy, A., & Mayor, M., 1992, ApJ 401, 365 CrossRefGoogle Scholar
McDonald, J. & Clarke, C., 1993, MNRAS 262, 800 CrossRefGoogle Scholar
Ochi, Y., Sugimoto, K., & Hanawa, T., 2005, ApJ 623, 922 CrossRefGoogle Scholar
Olczak, C., Pfalzner, S., & Spurzem, R., 2005, ApJ 642, 1140 CrossRefGoogle Scholar
Prato, L., Simon, M., Mazeh, T., McLean, I., Norman, D., & Zucker, S., 2002, ApJ 569, 863 CrossRefGoogle Scholar
Price, D. & Monaghan, J., 2005, MNRAS 364, 384 CrossRefGoogle Scholar
Rafikov, R., 2005, ApJ 621, L69 CrossRefGoogle Scholar
Reipurth, B. & Clarke, C., 2001, AJ 122, 432 CrossRefGoogle Scholar
Scally, A. & Clarke, C., 2001, MNRAS 325, 449 CrossRefGoogle Scholar
Tohline, J. & Durisen, R., 2001, The Formation of Binary Stars, Proceedings of IAU Symp. 200, held 10-15 April 2000, in Potsdam, Germany, Edited by Hans Zinnecker and Robert D. Mathieu, 2001, p. 40.CrossRefGoogle Scholar
Tokovinin, A. & Smekhov, M., 2002, A&A 382, 118 Google Scholar
van Albada, T., 1968, Bull. Astron. Inst. Neth. 19, 479 Google Scholar
Shen, S. & Wadsley, J., 2006, ApJ 651, L145.CrossRefGoogle Scholar
Whitehouse, S., Bate, M., & Monaghan, J., 2005, MNRAS 364, 1367 CrossRefGoogle Scholar
Woitas, J., Leinert, C., & Kohler, R., 2001, A&A 376, 982 Google Scholar