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The surface mass density in the solar neighbourhood using red clumps stars in TGASxRAVE

Published online by Cambridge University Press:  02 August 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: hagen@astro.rug.nl
Amina Helmi
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD, Groningen, The Netherlands email: hagen@astro.rug.nl
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Abstract

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We investigate the kinematics of red clump stars in the Solar neighbourhood by combining data from the RAVE survey with the TGAS dataset presented in Gaia DR1. Our goal is to put new constraints on the (local) distribution of mass using the Jeans Equations. Here we show the variation of the vertical velocity dispersion as function of height above the mid-plane for both a thin and a thick disk tracer sample and present preliminary results.

Keywords

Galaxy: kinematics and dynamics(cosmology:) dark matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S334: Rediscovering our Galaxy , July 2017 , pp. 304 - 305
Copyright
Copyright © International Astronomical Union 2018 

References

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