Measuring proper motions of galactic dwarf galaxies with Hubble Space Telescope

Document Type

Conference Proceeding

Publication Date

1-1-2007

Abstract

Over the past several years, our research group has been measuring proper motions for nearby dwarf satellite galaxies using data taken with the Hubble Space Telescope. In order to measure proper motions with an expected size of several tens of milliarcseconds per century using a time baseline of 2-4 years, our work required that positions of stars and QSOs be measured to an accuracy of ~0.25 mas (~0.005 pixel). This contribution reviews the scientific justification of this work and our methodology. It concludes with a few general results and future directions. © 2008 Copyright International Astronomical Union.

Identifier

47049103099 (Scopus)

Publication Title

Proceedings of the International Astronomical Union

External Full Text Location

https://doi.org/10.1017/S1743921308019170

e-ISSN

17439221

ISSN

17439213

First Page

244

Last Page

247

Issue

S248

Volume

3

This document is currently not available here.

Share

COinS