Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-23T22:50:34.913Z Has data issue: false hasContentIssue false
  • English
  • Français

Systematic biases and uncertainties of Hipparcos parallax

Published online by Cambridge University Press:  01 October 2007

X. P. Pan
X. P. Pan*
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91007, USA email: [email protected]
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.

Ground-based optical/IR interferometers have provided strong support to the space-based astrometric mission Hipparcos ever since the Hipparcos instrument was in operation in 1989. Interferometric observations also produced critical corrections of orbital motion to many targets, including radio stars, which link the Hipparcos system to the International Celestial Reference Frame (ICRF). In particular, orbital parallax from interferometers confirmed the 10% bias of the Pleiades distance from Hipparcos, and thus avoids revision of classical astronomy. Significant offsets and errors of Hipparcos parallax introduced by binary jitters are demonstrated in this work. By comparing the Hipparcos results with long baseline interferometry and other techniques including spectroscopy, multi-color photometry, Main-Sequence fitting, light curve measurements, Lunar occultation, Fine Guidance Sensor, etc., systematic biases and uncertainties of Hipparcos parallaxes are investigated and analyzed. We have established good models for major error sources of Hipparcos parallax, such as zonal bias, binary jitters, and luminosity-dependent errors. The lessons learned from the systematic biases of Hipparcos parallax are valuable to future space missions like SIM and Gaia.

Keywords

astrometrytechniques: interferometricmethods: data analysis
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. 78 - 81
Copyright
Copyright © International Astronomical Union 2008

References

Brown, A. G. A., Perryman, M. A. C., Kovalevsky, J., Robichon, N., Turon, C., & Mermilliod, J.-C. 1997, Proceedings of the Hipparcos Venice; 97 symposium, ESA SP-402 000, 681Google Scholar
Jancart, S., Jorissen, A., Babusiaux, C., & Pourbaix, D. 2002, A&A, 442, 365Google Scholar
Pan, Xiaopei, Shao, M. & Colavita, M. M., Mozurkewich, D., Simon, R. S. and Johnston, K. J. 1990, ApJ 356, 641CrossRefGoogle Scholar
Pan, Xiaopei, Shao, M., & Colavita, M. M. 1992, in: McAlister, H. & Hartkopf, W. (eds.), IAU Coll. 135, A. S. P. Conf. ser. Vol. 32, p. 502CrossRefGoogle Scholar
Pan, Xiaopei, Shao, M., Colovita, M. M., Armstrong, J. T., Mozurkewich, D., Vivekanand, M, Denison, C. S., Simon, R. S., & Johnston, K. J. 1992, ApJ 384, 624CrossRefGoogle Scholar
Pan, Xiaopei, Shao, M., & Colavita, M. M. 1993, ApJ (Letters) 413, L129Google Scholar
Pan, Xiaopei, Shao, M., & Kulkarni, S. R. 2004, Nature 427, 326Google Scholar
Pan, Xiaopei & Makarov, V. 2007, BAAS 39, No. 1, 12Google Scholar
Perryman, M. A. C. 1990, Hipparcos Internal Working Note: Hipparcos/MK III report, 12/06Google Scholar
Perryman, M. A. C. 1997, The Hipparcos and Tycho Catologues, ESA SP-1200Google Scholar
Shao, M., Colavita, M. M., Hines, B. E., Staelin, D. H., Hutter, D. J., Johnston, K. J., Mozurkewich, D., Simon, R. S., & Hershey, J. L., etc. 1988, A&A 193, 357Google Scholar
Shao, M., Colavita, M. M, Hines, B. E., Hershey, J. L., Hughes, J. A., Hutter, D. J., Kaplan, G. H., Johnston, K. J., Mozurkewich, D., Simon, R. S., & Pan, X. P. 1990, AJ 100, 1701Google Scholar
Tomkin, J., Pan, Xiaopei and McCarthy, K. 1995, AJ 109, 780Google Scholar
Torres, G., Stefanik, R. & Latham, D. W. 1997, ApJ, 485, 167Google Scholar