Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..611y&link_type=abstract
In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J
Astronomy and Astrophysics
Astronomy
Space Astrometry
Scientific paper
JASMINE is the name of a Japanese infrared (K-band or z-band) scanning astrometric satellite and is planned to be launched between 2013 and 2015. The main objective of JASMINE is to study the fundamental structure and evolution of the disk and the bulge components of the Milky Way Galaxy. Furthermore its important objective is to investigate stellar physics. In order to accomplish the objective JASMINE will measure parallaxes positions and proper motions with the precision of 10 microarcsec at K=12mag or z ˜= 16mag. We develop an algorithm in order to measure positions of stars with high accuracy corresponding to 10 microarcsec. Concretely we need an accuracy of 1/300 pixels in a mesurement with one detector. We report an experimant of measuring the positions of stars in a pattern with accuracy of 1/300 pixels. We also report details of the algorithm which we use in this experiment.
Araki Hiroshi
Asari Kazuyoshi
Gouda Naoteru
Hanada Hideo
Kan-ya Yukitoshi
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