منابع مشابه
Deep R-band photometry of the Chandra Deep Field South from the COMBO-17 survey
We report on deep multi-color imaging (R5σ = 26.0) of the Chandra Deep Field South, obtained with the Wide Field Imager (WFI) at the MPG/ESO 2.2 m telescope on La Silla as part of the COMBO-17 survey. We include an overview of the COMBO-17 project and a detailed reduction scheme for WFI survey data. We discuss particular treatment necessary for accurate flatfielding of WFI images taken in the s...
متن کاملDeep BVR photometry of the Chandra Deep Field South from the COMBO-17 survey
We report on deep multi-color imaging (R5σ = 26) of the Chandra Deep Field South, obtained with the Wide Field Imager (WFI) at the MPG/ESO 2.2 m telescope on La Silla as part of the multi-color survey COMBO-17. As a result we present a catalogue of 63501 objects in a field measuring 31.′5 × 30′ with astrometry and BVR photometry. A sample of 37 variable objects is selected from two-epoch photom...
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We perform a statistical weak lensing or “cosmic shear” analysis of the COMBO-17 survey – a unique dataset with shear quality R-band imaging and accurate photometric redshift estimates (σz = 0.05) for ∼ 90% of galaxies to mR ≤ 24.0. We undertake a full maximum likelihood analysis to measure directly from the data the weak lensing power spectra, C l , C ββ l and C l in 5 band powers from l = 400...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2012
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.064063