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Nearby Hills ejecta as a probe of the gravitational potential of the Milky Way

Published online by Cambridge University Press:  14 May 2020

Y. Q. Zhang Open the ORCID record for Y. Q. Zhang [Opens in a new window] ,
M. C. Smith  and
P. J. McMillan
Y. Q. Zhang
Affiliation:
Ningbo University of Technology, Zhejiang325211, China email: yanqiongz@icloud.com Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai200030, China email: dr.mcsmith@me.com
M. C. Smith
Affiliation:
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai200030, China email: dr.mcsmith@me.com
P. J. McMillan
Affiliation:
Lund Observatory, Department of Astronomy and Theoretical Physics, Lund University, Box 43, SE-22100 Lund, Sweden email: paul@astro.lu.se
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Abstract

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Stars ejected from the Galactic Center can be used to place important constraints on the Milky Way potential. We have used Hills stars to constrain models for the Galactic potential, demonstrating that meaningful constraint can be obtained if we have samples of around 50 nearby Hills stars.

Keywords

stars: kinematicsgravitationblack hole physics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S353: Galactic Dynamics in the Era of Large Surveys , June 2019 , pp. 54 - 56
Copyright
© International Astronomical Union 2020

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