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Table · dataset · 2022

The 1.266GHz MeerKAT DEEP2 component catalog

Listed in IVOA Registry (Virtual Observatory)

Description

Brightness-weighted differential source counts S2n(S) spanning the eight decades of flux density between 0.25{mu}Jy and 25Jy at 1.4GHz were measured from (1) the confusion brightness distribution in the MeerKAT DEEP2 image below 10{mu}Jy, (2) counts of DEEP2 sources between 10{mu}Jy and 2.5mJy, and (3) counts of NVSS sources stronger than 2.5mJy. We present our DEEP2 catalog of 1.7x10^4^ discrete sources complete above S=10{mu}Jy over {Omega}=1.04deg^2^.

The brightness-weighted counts converge as S^2^n(S){propto}S^1/2^ below S=10{mu}Jy, so >99% of the {Delta}T_b_~0.06K sky brightness produced by active galactic nuclei and ~96% of the {Delta}T_b_~0.04K added by star-forming galaxies has been resolved into sources with S>=0.25{mu}Jy. The {Delta}T_b_~0.4K excess brightness measured by ARCADE 2 cannot be produced by faint sources smaller than ~50kpc if they cluster like galaxies.

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Catalogue records · 2

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Stated by source
Radio
Inferred from text
Image 75%
Provenance · 1 source records, 9 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/apj/909/19313 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:radiosource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].local:modality:imageenrichment · IVOA Registrykeyword-concept-rules@1.0.0title+description (75%)
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0