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The Dynamical Mass of the Large Magellanic Cloud

Published online by Cambridge University Press:  30 October 2025

Laura L. Watkins Open the ORCID record for Laura L. Watkins [Opens in a new window] ,
Roeland P. van der Marel  and
Paul Bennet
Laura L. Watkins*
Affiliation:
AURA for the European Space Agency (ESA), Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21211, USA
Roeland P. van der Marel
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21211, USA
Paul Bennet
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD 21211, USA
*
email: lauralwatkins@gmail.com
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Abstract

In this contribution, we describe how we have used positions and velocities of 30 globular clusters in the Large Magellanic Cloud (LMC) to estimate its anisotropy and mass within 13 kpc, and then how we have used these estimates to extrapolate its virial mass. This is the first time that this family of mass estimation methods has been applied to the LMC. We also compare our estimate against other estimates of the LMC’s mass via different methods and discuss the broader context of our results.

Keywords

Galaxy DynamicsGalaxy MassesLarge Magellanic CloudProper Motions

Information

Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 19 , Symposium S379: Dynamical Masses of Local Group Galaxies , December 2023 , pp. 249 - 255
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Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of International Astronomical Union

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