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The kinematics and surface mass density in the solar neighbourhood using TGASxRAVE

Published online by Cambridge University Press:  07 March 2018

Jorrit H. J. Hagen  and
Amina Helmi
Jorrit H. J. Hagen
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD, Groningen, The Netherlands email: [email protected]
Amina Helmi
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD, Groningen, The Netherlands email: [email protected]
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Abstract

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We investigate the kinematics of stars in the Solar neighbourhood by combining radial velocities from the latest data release of the RAVE survey with the Tycho-Gaia Astrometric Solution presented in Gaia Data Release 1. We use moments of the velocity distribution to characterise the kinematics over a radial distance range of 6-10 kpc and up to 1 kpc away from the plane. Our ultimate goal is to use these to put new constraints on the (local) distribution of mass using the Jeans Equations.

Keywords

(Galaxy:) solar neighborhoodGalaxy: diskGalaxy: kinematics and dynamics(cosmology:) dark matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 160 - 163
Copyright
Copyright © International Astronomical Union 2018 

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