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Magellanic Clouds Proper Motion and Rotation with Gaia DR1

Published online by Cambridge University Press:  07 March 2018

J. Sahlmann
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA email: jsahlmann@stsci.edu
R. van der Marel
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA email: jsahlmann@stsci.edu
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Abstract

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We used the Gaia data release 1 to study the proper motion fields of the Large and Small Magellanic Clouds (LMC, SMC) on the basis of the Tycho-Gaia Astrometric Solution (van der Marel & Sahlmann 2016). The Gaia LMC and SMC proper motions have similar accuracy and agree to within the uncertainties with existing HST proper motion measurements. Since Gaia probes the young stellar population and uses different methods with different systematics, this provides an external validation of both data sets and their underlying approaches.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

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