FISIR, a fully-criogenic tunable filter in the near-infrared to be installed within the CIRCE instrument (developed by the University of Florida, Prof. Eikenberry is the PI) at the Gran Telescopio Canarias (GTC). It is the first instrumental project leaded by the GUAIX group.

• Instrument Definition Team (IDT) members are J. Gallego (FISIR PI), S. Eikenberry (CIRCE PI), R. Guzmán, and M. García-Vargas.
• R. Guzmán is the project scientist and M. Mas and P.G. Pérez-González are already members of the science team.

FISIR is unique in the world because it will allow to observe not only in the J and H bands, but also in the K band of the nIR. FISIR also provides a wide field of view optimized for surveys.

FISIR located on CIRCE collimated beam (@UCM&FRACTAL).

During 2009, FISIR has been funded by the project AYA2007-31235-E (Acción Complementaria of the Spanish Ministry for Science and Innovation MICINN), and quantities by the Universidad Complutense de Madrid and the GTC-Consolider Ingenio2010 research project. FISIR technical developments will be hosted by the Centro de Asistencia a la Investigación (CAI) de Técnicas Físicas de la Universidad Complutense de Madrid. FISIR also benefits from the optical laboratory provided by the Departamento de Astrofísica de la UCM.

During the first months of 2009, the FISIR feasibility study has been completed by the FRACTAL company (under contract supported by the UCM), in close collaboration with GUAIX researchers. The FISIR conceptual design started in March 2009.

FISIR finished the conceptual and preliminary designs in 2011. The goal would be to have FISIR ready within CIRCE in the future.

Summary of FISIR properties