ANIR : Infrared-Optical Simultaneous Imager for miniTAO 1 m Telescope at an Altitude of 5640 m

Details ANIR : Infrared-Optical Simultaneous Imager for miniTAO 1 m Telescope at an Altitude of 5640 m ANIR : Infrared-Optical Simultaneous Imager for miniTAO 1 m Telescope at an Altitude of 5640 m

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..397m&link_type=abstract

DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 397-399 (2010).

Computer Science

Performance

Gamma-Ray Sources (Astronomical), Astronomical Telescopes, Visible Spectra, Astronomical Observatories, Gamma-Ray Sources, Gamma-Ray Bursts, X- And Gamma-Ray Telescopes And Instrumentation, Photometric, Polarimetric, And Spectroscopic Instrumentation, Observatories And Site Testing

Scientific paper

Early follow-up observations of gamma-ray bursts (GRBs) in wide wavelength range, especially from the optical to the near infrared (NIR) bands, are crucial for search of high-redshift GRBs by detecting their Lyman limit break. For this purpose, we have developed a NIR/optical simultaneous imager called ANIR (Atacama Near InfraRed camera) for the University of Tokyo Atacama 1.0 m telescope. Installed at the summit of Co. Chajnantor (5640 m altitude) in northern Chile, this telescope is the world's highest optical/NIR observatory. ANIR saw the first light in June 2009, and several observing runs have been carried out for performance verification as well as scientific observations. During the run, we have successfully detected an optical/NIR afterglow of GRB091018. Thanks to the excellent seeing (median ~0''.8), 5σ limiting magnitudes reach 23.3, 20.6, and 20.8 mag(AB) in the B, J and Ks bands, respectively, with 600 sec exposure.

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