Journal Article

The present and future mass of the Milky Way halo

M. I. Wilkinson and N. W. Evans

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 310, issue 3, pages 645-662
Published in print December 1999 | ISSN: 0035-8711
Published online December 1999 | e-ISSN: 1365-2966 | DOI: https://dx.doi.org/10.1046/j.1365-8711.1999.02964.x
The present and future mass of the Milky Way halo

Show Summary Details

Preview

Abstract

A simple model for the Milky Way halo is presented. It has a flat rotation curve in the inner regions, but the density falls off sharply beyond an outer edge. This truncated, flat rotation curve (TF) model possesses a rich family of simple distribution functions which vary in velocity anisotropy. The model is used to estimate the total mass of the Milky Way halo using the latest data on the motions of satellite galaxies and globular clusters at Galactocentric radii greater than 20 kpc. This comprises a data set of 27 objects with known distances and radial velocities, of which six...

Keywords: Galaxy: fundamental parameters; Galaxy: halo; Galaxy: kinematics and dynamics

Journal Article.  12536 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. subscribe or login to access all content.