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Stream-orbit misalignment & a new algorithm for constraining the Galactic potential with streams

Published online by Cambridge University Press:  06 January 2014

Jason L. Sanders  and
James Binney
Jason L. Sanders
Affiliation:
Rudolf Peierls Centre for Theoretical Physics, Keble Road, Oxford, OX1 3NP, UK email: [email protected], [email protected]
James Binney
Affiliation:
Rudolf Peierls Centre for Theoretical Physics, Keble Road, Oxford, OX1 3NP, UK email: [email protected], [email protected]
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Abstract

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In general, a tidal stream is misaligned with the orbit of its progenitor. Here we present the formation of tidal streams in angle-action space to discuss the effect of this misalignment on orbit-fitting algorithms for constraining the Galactic potential. We close by presenting and testing an alternative algorithm which more fully accounts for the dynamics of streams by using the angle-action formalism.

Keywords

Galaxy: kinematics and dynamicshalostructure – methods: numerical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S298: Setting the scene for Gaia and LAMOST , May 2013 , pp. 195 - 200
Copyright
Copyright © International Astronomical Union 2014 

References

Belokurov, V., Zucker, D. B., Evans, N. W., et al. 2006, ApJ (Letters), 642, L137Google Scholar
Binney, J. 2008, MNRAS, 386, L47Google Scholar
Choi, J.-H., Weinberg, M. D., & Katz, N. 2007, MNRAS, 381, 987Google Scholar
Dehnen, W., 2004, ApJ (Letters), 536, L39CrossRefGoogle Scholar
Eyre, A., & Binney, J. 2011, MNRAS, 413, 1852CrossRefGoogle Scholar
Grillmair, C. J., & Dionatos, O. 2006, ApJ (Letters), 643, L17Google Scholar
Helmi, A. & White, S. D. M. 1999, MNRAS, 307, 495CrossRefGoogle Scholar
Jin, S. & Lynden-Bell, D. 2008, MNRAS, 383, 1686Google Scholar
Johnston, K. V., Hernquist, L., & Bolte, M. 1996, ApJ, 465, 278Google Scholar
Johnston, K. V., Zhao, H., Spergel, D. N., & Hernquist, L. 1999, ApJ (Letters), 512, L109Google Scholar
Koposov, S. E., Rix, H.-W., & Hogg, D. W. 2010, ApJ, 712, 260Google Scholar
Law, D. R. & Majewski, S. R. 2010, ApJ, 714, 229CrossRefGoogle Scholar
McGlynn, T. A. 1990, ApJ, 348, 515Google Scholar
McMillan, P. J. 2011, MNRAS, 414, 2446Google Scholar
Peñarrubia, J., Koposov, S. E., & Walker, M. G. 2012, ApJ, 760, 2Google Scholar
Sanders, J. L. & Binney, J. 2013, MNRAS, in pressGoogle Scholar
Sanders, J. L. & Binney, J. 2013, MNRAS, in pressGoogle Scholar
Tremaine, S. 1999, MNRAS, 307, 877Google Scholar
Varghese, A., Ibata, R., & Lewis, G. F. 2011, MNRAS, 417, 198CrossRefGoogle Scholar