The instrumentation, object stars and the first observations of MIRA-I.2 (Mitaka optical and infrared array)

Details The instrumentation, object stars and the first observations of MIRA-I.2 (Mitaka optical and infrared array) The instrumentation, object stars and the first observations of MIRA-I.2 (Mitaka optical and infrared array)

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4838.1072s&link_type=abstract

Interferometry for Optical Astronomy II. Edited by Wesley A. Traub . Proceedings of the SPIE, Volume 4838, pp. 1072-1079 (2003

Astronomy and Astrophysics

Astronomy

1

Scientific paper

At Mitaka campus of National Astronomical Observatory of Japan, we are now constructing the MIRA-I.2 Interferometer, the second stage interferometer of MIRA (Mitaka optical and InfraRed Array Project). The MIRA-I.2 system is an interferometer consisting of two 300 mm siderostats which are placed on a 30 m baseline. Fringe detection is made at 800 nm with APD. Before setting up the regular system of 30 m baseline, we made the test system of 6-m baseline. This system was used for testing and solving the problems of the remote control of fast tip-tilt mirrors, the remote control of siderostats, and the remote adjustment of optics. After the fringe detection of stars with this system, in June 2001, we complete the regular system of MIRA-I.2 of 30 m baseline. In August, 2001, we started the setup of the regular system of 30 m baseline of the MIRA-I.2 interferometer by making the modifications and improvements of each element. From the end of October 2001, the test observations of some bright stars have been made. The fringes of α Lyr were detected with the regular system, in June 2002. Object stars, such as single star, binary star, Cepheid, Mira variable to be observed are investigated. Main subjects of this interferometer system are the observations of star radius and binary star.

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