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Measurements of Tidal Tail Populations Designed to Optimize Their Use as Potential Probes

Kathryn V Johnston
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Abstract

The launching of up to four astrometric missions in the next decade will enable us to make measurements of stars in tidal streamers from Galactic satellites of sufficient accuracy to place strong constraints on the mass distribution in the Milky Way. In this paper we simulate observations of debris populations in order to assess the required properties of any data set chosen to implement this experiment. We apply our results to find the desired target properties of stars (e.g., accuracy of velocity and proper motion measurements) associated with the dwarf spheroidal satellites of the Milky Way.

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Kathryn V Johnston. 2000-07-12. Measurements of Tidal Tail Populations Designed to Optimize Their Use as Potential Probes. https://arxiv.org/abs/astro-ph/0007160

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