Performance investigation of high precision astrometry using TMT/IRIS

Research Project

Project/Area Number	25800118
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Astronomy
Research Institution	National Astronomical Observatory of Japan
Principal Investigator	Suzuki Ryuji 国立天文台, TMT推進室, 助教 (20532542)
Research Collaborator	Brent Ellerbroek Glen Herriot Matthias Schoeck Tuan Do Leo Meyer Yelda Sylvana HARAKAWA Hiroki
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords	天文学 / 位置天文学
Outline of Final Research Achievements	This research is aimed to establish a methodology to achieve high precision astrometry at a level of 30 micro-arcsec using the Thirty Meter Telescope and its instrument IRIS. We have investigated, through measurements and computer simulations, effects of optical distortion correction, atmospheric dispersion, and detector originated errors. The results obtained in this research constitute a published paper which for the first time discusses astrometry error associated to the precision astrometry using the extremely large telescope.