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On the origin of the hypervelocity runaway star HD 271791

Published online by Cambridge University Press:  18 January 2010

V. V. Gvaramadze
V. V. Gvaramadze*
Affiliation:
Sternberg Astronomical Institute, Moscow State University, Universitetskij Pr. 13, Moscow 119992, Russia email: [email protected]
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Abstract

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We discuss the origin of the early-B-type runaway star HD 271791 and show that its extremely high velocity (≃530 − 920km s−1) cannot be explained within the framework of the binary–supernova ejection scenario. Instead, we suggest that HD 271791 attained its peculiar velocity in the course of a strong dynamical encounter between two hard, massive binaries or through an exchange encounter between a hard, massive binary and a very massive star, formed through runaway mergers of ordinary massive stars in the dense core of a young massive star cluster.

Keywords

binaries: closestars: individual (HD 271791)stars: kinematicsgalaxies: star clusters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S266: Star clusters: basic galactic building blocks throughout time and space , August 2009 , pp. 272 - 277
Copyright
Copyright © International Astronomical Union 2010

References

Aarseth, S. J. 1974, A&A, 35, 237Google Scholar
Abadi, M. G., Navarro, J. F., & Steinmetz, M. 2009, ApJ (Letters), 691, L63CrossRefGoogle Scholar
Baumgardt, H., Gualandris, A., & Portegies Zwart, S. 2006, MNRAS, 372, 174CrossRefGoogle Scholar
Blaauw, A. 1961, Bull. Astron. Inst. Netherlands, 15, 265Google Scholar
Boersma, J., 1961, Bull. Astron. Inst. Netherlands, 15, 291Google Scholar
Bromley, B. C., Kenyon, S. J., Brown, W. R., & Geller, M. J. 2009, ApJ, 706, 925CrossRefGoogle Scholar
Brown, W. R., Geller, M. J., Kenyon, S. J., & Kurtz, M. J. 2005, ApJ (Letters), 622, L33CrossRefGoogle Scholar
Edelmann, H., Napiwotzki, R., Heber, U., Christlieb, N., & Reimers, D. 2005, ApJ (Letters), 634, L181CrossRefGoogle Scholar
Gies, D. R. & Bolton, C. T. 1986, ApJS, 61, 419CrossRefGoogle Scholar
Ginsburg, I. & Loeb, A. 2006, MNRAS, 368, 221CrossRefGoogle Scholar
Gualandris, A. & Portegies Zwart, S. 2007, MNRAS (Letters), 376, L29CrossRefGoogle Scholar
Gualandris, A., Portegies Zwart, S., & Sipior, M. S. 2005, MNRAS, 363, 223CrossRefGoogle Scholar
Gvaramadze, V. V. 2006a, in On the Present and Future of Pulsar Astronomy, IAU JD06 (IAU 26th General Assembly), # 25Google Scholar
Gvaramadze, V. V. 2006b, A&A, 454, 239Google Scholar
Gvaramadze, V. V. 2007, A&A (Letters), 470, L9Google Scholar
Gvaramadze, V. V. 2009, MNRAS (Letters), 395, L85CrossRefGoogle Scholar
Gvaramadze, V. V. & Bomans, D.J. 2008, A&A, 485, L29Google Scholar
Gvaramadze, V. V., Gualandris, A., & Portegies Zwart, S. 2008, MNRAS, 385, 929CrossRefGoogle Scholar
Gvaramadze, V.V., Gualandris, A., & Portegies Zwart, S. 2009, MNRAS, 396, 570CrossRefGoogle Scholar
Habets, G. M. H. J., & Heintze, J. R. W. 1981, A&AS, 46, 193Google Scholar
Heber, U., Edelmann, H., Napiwotzki, R., Altmann, M., & Scholz, R.-D. 2008, A&A, 483, L21Google Scholar
Hills, J.G. 1988, Nature, 331, 687CrossRefGoogle Scholar
Hirsch, H. A., Heber, U., O'Toole, S. J., & Bresolin, F. 2005, A&A (Letters), 444, L61Google Scholar
Leonard, P. J. T. 1991, AJ, 101, 562CrossRefGoogle Scholar
Leonard, P. J. T., & Duncan, M. J. 1990, AJ, 99, 608CrossRefGoogle Scholar
Levin, Y. 2006, ApJ, 653, 1203CrossRefGoogle Scholar
Löckmann, U. & Baumgardt, H. 2008, MNRAS, 384, 323CrossRefGoogle Scholar
Lu, Y., Yu, Q., Lin, D. N. C. 2007, ApJ (Letters), 666, L89CrossRefGoogle Scholar
Meurs, E. J. A., van den Heuvel, E. P. J. 1989, A&A, 226, 88Google Scholar
Meynet, G. & Maeder, A. 2003, A&A, 404, 975Google Scholar
Mikkola, S. 1983, MNRAS, 203, 1107CrossRefGoogle Scholar
Nelemans, G., Tauris, T. M., & van den Heuvel, E. P. J. 1999, A&A (Letters), 352, L87Google Scholar
Portegies Zwart, S. F., Makino, J., McMillan, S. L. W., & Hut, P. 1999, A&A, 348, 117Google Scholar
Poveda, A., Ruiz, J., & Allen, C. 1967, Bol. Obs. Tonantzintla Tacubaya, 4, 86Google Scholar
Przybilla, N., Nieva, M. F., Heber, U., & Butler, K. 2008, ApJ (Letters), 684, L103CrossRefGoogle Scholar
Radhakrishnan, V. & Shukre, C. S. 1985, in: Srinivasan, G. & Radhakrishnan, V. (eds.), Supernovae, Their Progenitors and Remnants, p. 155, Bangalore: Indian Academy of SciencesGoogle Scholar
Sesana, A., Haardt, F., & Madau, P. 2006, ApJ, 651, 392CrossRefGoogle Scholar
Stone, R. C. 1982, AJ, 87, 90CrossRefGoogle Scholar
Tauris, T. M. & Takens, R. J. 1998, A&A, 330, 1047Google Scholar
Vanbeveren, D., De Loore, C., & Van Rensbergen, W. 1998, A&A Rev., 9, 63Google Scholar
Weidner, C., Kroupa, P., & Bonnell, I. 2009, MNRAS, in press (arXiv:0909.1555)Google Scholar
Woosley, S. E., Heger, A., & Weaver, T. A. 2002, Rev. Mod. Phys., 74, 1015CrossRefGoogle Scholar
Yu, Q. & Tremaine, S. 2003, ApJ, 599, 1129CrossRefGoogle Scholar