Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-24T20:00:00.259Z Has data issue: false hasContentIssue false
  • English
  • Français

Preliminary proper motion analysis of the Carina dwarf spheroidal

Published online by Cambridge University Press:  01 October 2007

J. L. Carlin ,
S. R. Majewski ,
D.I. Casetti-Dinescu  and
T. M. Girard
J. L. Carlin
Affiliation:
Dept. of Astronomy, Univ. of Virginia, PO Box 400325, Charlottesville, VA 22904-4325USA
S. R. Majewski
Affiliation:
Dept. of Astronomy, Univ. of Virginia, PO Box 400325, Charlottesville, VA 22904-4325USA
D.I. Casetti-Dinescu
Affiliation:
Dept. of Astronomy, Univ. of Virginia, PO Box 400325, Charlottesville, VA 22904-4325USA
T. M. Girard
Affiliation:
Dept. of Astronomy, Univ. of Virginia, PO Box 400325, Charlottesville, VA 22904-4325USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present preliminary results from a proper motion study of the Carina dwarf spheroidal galaxy. Our proper motions show a scatter of ~1.1 mas yr−1 per Carina member star, and we determinate the mean ensemble motion to an accuracy of ~7 mas century−1. While this is a precise measurement of the relative proper motions of Carina members, our correction to an absolute frame is limited by the small number of measured QSOs in the field.

Keywords

galaxies: dwarfgalaxies: individual (Carina dSph)astrometry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 492 - 493
Copyright
Copyright © International Astronomical Union 2008

References

Girard, T. M., Grundy, W. M., Lopez, C. E., & van Altena, W. F. 1989, AJ, 98, 227Google Scholar
Mateo, M. L. 1998, ARAA, 36, 435Google Scholar
Muñoz, R. R., et al. 2006, ApJ, 649, 201 (M06)CrossRefGoogle Scholar
Muñoz, R. R., Majewski, S. R., & Johnston, K. V. 2007, ApJ, submittedGoogle Scholar
Piatek, S., Pryor, C., Olszewski, E. W., et al. 2003 AJ, 126, 2346CrossRefGoogle Scholar
Véron-Cetty, M.-P., & Véron, P. 2006, A&A, 455, 773Google Scholar
Zacharias, N., Urban, S. E., Zacharias, M. I., et al. 2004, AJ, 127, 3043CrossRefGoogle Scholar