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What is CRATES?

April 26, 2017crates

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What is CRATES?

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CRATES is an 8.4 GHz survey of bright, flat-spectrum radio sources with nearly uniform extragalactic coverage for sources brighter than 65 mJy at 4.8 GHz. We have assembled the catalog from existing observations, especially CLASS and the PMN-CA survey, augmented by reprocessing of archival VLA and ATCA data and by new observations to fill in coverage gaps. The resulting catalog provides precise positions, sub-arcsecond structures, and spectral indices for over 11,000 sources.