Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-19T17:15:44.004Z Has data issue: false hasContentIssue false
  • English
  • Français

Toward inertial reference frames with the SIM observatory

Published online by Cambridge University Press:  06 January 2010

Valeri V. Makarov
Valeri V. Makarov*
Affiliation:
NASA Exoplanet Science Institut, Caltech, 770 S. Wilson Ave., MS 100-22, Pasadena, CA, USA email: vvm@caltech.edu
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.

The SIM Lite Observatory is expected to provide a global astrometric reference frame surpassing the 1-μas accuracy threshold in some spherical harmonics. A range of time-varying physical distortions of the reference frame will become observable as large-scale perturbations of the proper motion field. I consider the main sources of the apparent and physical motion of reference objects, such as the aberration of light caused by the acceleration of SIM, long gravitational waves and hypothetical rotation of the Universe, and present some estimates of the astrometric sensitivity to these effects. I argue that a global solution and covariance analysis is of crucial importance for the SIM mission to differentiate the inevitable accidental and systematic zonal errors from real physical phenomena.

Keywords

astrometryreference systemsgravitational waveslarge-scale structure of universe
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S261: Relativity in Fundamental Astronomy: Dynamics, Reference Frames, and Data Analysis , April 2009 , pp. 345 - 349
Copyright
Copyright © International Astronomical Union 2010

References

Ciufolini, I. & Wheeler, J. A. 1995, Gravitation and Inertia, Princeton University Press, PrincetonCrossRefGoogle Scholar
Gamow, G. 1946, Nature, 158, 549CrossRefGoogle Scholar
Gödel, K. 1949, Rev. Mod. Phys., 21, 447CrossRefGoogle Scholar
Grishchuk, L. P. 2005, Us. Fi. Nauk, 48, 1235CrossRefGoogle Scholar
Gwinn, C. R., et al. , 1997, ApJ, 485, 87Google Scholar
Hawking, S. 1969, MNRAS, 142, 129CrossRefGoogle Scholar
Klioner, S. A. 2003, AJ, 125, 1580Google Scholar
Kopeikin, S. M. & Makarov, V. V. 2006, AJ, 131, 1471Google Scholar
Li, L.-X. 1998, Gen. Rel. Grav., 30, 497CrossRefGoogle Scholar
Makarov, V. V. & Milman, M. 2005, PASP, 117, 757CrossRefGoogle Scholar
Makarov, V. V. & Murphy, D. W. 2007, AJ, 134, 367Google Scholar
Smith, T. L., et al. , 2006, PhRevD, 73b, 3504Google Scholar
Unwin, S. C., et al. , 2008, PASP, 120, 38Google Scholar