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BlackGEM
BlackGEM is a planned array of optical telescopes located at the La Silla astronomical observatory in Chile. This system is specifically designed to detect the optical counterparts from gravitational wave sources detected with Virgo and LIGO.
==Characteristics==
The BlackGEM array consists of 20 telescopes each 60 cm in diameter. This configuration uniquely allows the pointing of the combined telescope to be matched to the often elongated ellipse shaped source-location estimates provided by gravitational wave detectors. Once an optical counterpart has been detected all telescopes are pointed directly at the target giving a light collecting area and sensitivity equivalent to that of a single 3.5 m telescope but with a larger two square degree field of view.
Each telescope is equipped with a 9000 by 9000 pixel CCD with 10 micron pixel size that samples the full focal plane of the telescope. This, combined with the (f/6) focal length of the telescope, means that the angular resolution of the instrument is limited only by the seeing (which is about 1" at La Silla). Therefore enabling spectroscopic follow up of any detected gravitational wave source with for instance the nearby Very Large Telescope.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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