The ALHAMBRA (Advance Large Homogeneous Area Medium Band Redshift Astronomical) survey (Moles et al. 2008) has observed 8 different regions of the sky, including sections of the COSMOS, DEEP2, ELAIS, GOODS-N, SDSS and Groth fields using a new photometric system with 20 contiguous, non-overlapping, equal width (~ 300A) filters, covering the optical range (3500A-9700A), plus the standard broadband NIR J, H and Ks filters. The observations were carried out with the Calar Alto (CAHA) 3.5m telescope using the wide field, 0.25 deg2 FOV optical camera LAICA and the NIR instrument Omega-2000. The ALHAMBRA survey dataset represents a ~700hrs of total exposure time, gathered in between the 2005 and 2012.
Further information on the project can be found at the ALHAMBRA web page.
The ALHAMBRA Data Access Service is the result of a collaboration agreement between the Centro de Astrobiología (CAB, INTA-CSIC) and the ALHAMBRA project. It has been developed in the framework of the Spanish Virtual Observatory project supported by the Spanish MINECO through grant AYA 2011-14052 and the CoSADIE FP7 project (Call INFRA-2012-3.3 Research Infrastructures, project 312559). The system is maintained by the Data Archive Unit of the CAB (CSIC -INTA).
If you use this service in your research, please include the following acknowledgement in any resulting publications: "Based on data from ALHAMBRA Data Access Service the at CAB (INTA-CSIC)".