REM (Rapid Eye Mount) is a fully robotized alt-az 60-cm fast slewing telescope equipped with a high throughput NIR (four filters) camera (REMIR) dedicated to detecting the prompt IR afterglow of GRBs. A dichroic placed at one of its Nasmith foci splits the beam in two: one feeds REMIR and the other ROS2 (REM Optical Slitless Spectrograph 2nd version).
REM can discover objects at extremely high redshift and trigger within minutes large telescopes to observe them.
ROS2 intensively monitors the prompt optical continuum of GRB afterglows via simultaneous observations in 4 filters (SLOAN g’,r’,i’,z’).
REM is placed at La Silla (Chile) and is collecting images since 2003.
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