First Scientific Results from the ALHAMBRA: Survey
The Advanced, Large, Homogeneous Area, Medium-Band Redshift Astronomical (ALHAMBRA)–Survey is mapping eight different areas in the Northern sky, totalling 4 square degrees, aiming at obtaining a photometric redshift catalogue of over 600,000 galaxies with a median redshift \( \mathop z\limits^ - \, \approx \,0.7 \). This sample will be used to measure cosmic evolution at large, including the processes of galaxy formation and differentiation, large-scale structure, and the history of star formation. The photometric redshift depth, completeness, and accuracy are better than in any previous similar effort, reaching δz ≈ 0. 015(1 + z) for 90% of the objects with AB(I) < 24. We present in this conference the present status of the project, including the observations, data analysis, and the first preliminary scientific results obtained with a small fraction of the total survey.
KeywordsStar Formation Cosmic Evolution Magnitude Limit Photometric Redshift Spectroscopic Survey
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We acknowledge the decisive support given by the ALHAMBRA Extended Team to the project (see http://alhambra.iaa.csic.es:8080/ for the details regarding the project implementation and organization). We also wish to acknowledge the Calar Alto Director and staff for their strong support and warm assistance for a fruitful observation. The Ministerio de Ciencia e Innovación (formerly Ministerio de Educación y Ciencia) is acknowledged for its support through the grants AYA2002-12685-E and AYA2004-20014-E, and project AYA2006-14056.
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