Development of a near-infrared high-resolution spectrograph (WINERED) for a survey of bulge stars

Details Development of a near-infrared high-resolution spectrograph (WINERED) for a survey of bulge stars Development of a near-infrared high-resolution spectrograph (WINERED) for a survey of bulge stars

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..248..510t&link_type=abstract

A Giant Step: from Milli- to Micro-arcsecond Astrometry, Proceedings of the International Astronomical Union, IAU Symposium, Vol

Physics

Optics

Galaxy: Bulge, Infrared: Stars, Stars: Abundances, Stars: Atmospheres, Instrumentation: Spectrographs, Techniques: Spectroscopic, Techniques: Radial Velocities

Scientific paper

We are developing a new near-infrared high-resolution (R[max] = 100,000) and high-sensitive spectrograph WINERED, which is specifically customized for short NIR bands at 0.9 1.35 μm. WINERED employs an innovative optical system; a portable design and a warm optics without any cold stops. The planned astrometric space mission JASMINE will provide precise positions, distances, and proper motions of the bulge stars. The missing components, the radial velocity and chemical composition will be measured by WINERED. These combined data brought by JASMINE and WINERED will certainly reveal the nature of the Galactic bulge. We plan to complete this instrument for observations of single objects by the end of 2008 and to attach it to various 4 10m telescopes as a PI-type instrument. We hope to upgrade WINERED with a multi-object feed in the future for efficient survey of the JASMINE bulge stars.

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