Frequency Decomposition of Astrometric Signature of Planetary Systems

Details Frequency Decomposition of Astrometric Signature of Planetary Systems Frequency Decomposition of Astrometric Signature of Planetary Systems

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...567..566k&link_type=abstract

The Astrophysical Journal, Volume 567, Issue 1, pp. 566-578.

Astronomy and Astrophysics

Astronomy

12

Astrometry, Methods: Data Analysis, Stars: Planetary Systems

Scientific paper

We present a theoretical analysis of astrometric searches for extrasolar planets with the Space Interferometry Mission (SIM). In particular, we derive a model for future measurements with SIM and discuss the problem of reliable estimation of orbital elements of planets. For this purpose we propose a new method of data analysis and present a numerical test of its application to simulated SIM astrometric measurements of the υ And planetary system. We demonstrate that our approach allows for successful determination of its orbital elements. Most of the proposed approach can be adopted for other astrometric missions.

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