A census of the deep radio sky with the vla. i. 10 ghz survey of the goods-n field
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Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
American Astronomical Society
Abstract
We present the first high-resolution, high-frequency radio continuum survey that fully maps an extragalactic deep field: the 10 GHz survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field. This is a Large Program of the Karl G. Jansky Very Large Array that allocated 380 hours of observations using the X-band (8 − 12 GHz) receivers, leading to a 10 GHz mosaic of the GOODS-field with an average rms noise σn = 671 nJy beam−1 and angular resolution θ1/2 = 0. ′′22 across 297 arcmin2 . To maximize the brightness sensitivity we also produce a low-resolution mosaic with θ1/2 = 1. ′′0 and σn = 968 nJy beam−1 , from which we derive our master catalog containing 256 radio sources detected with peak signal-to-noise ratio ≥ 5. Radio source size and flux density estimates from the high-resolution mosaic are provided in the master catalog as well. The total fraction of spurious sources in the catalog is 0.75%. Monte Carlo simulations are performed to derive completeness corrections of the catalog. We find that the 10 GHz radio source counts in the GOODS-N field agree, in general, with predictions from numerical simulations/models and expectations from 1.4 and 3 GHz radio counts.
Description
Keywords
radio continuum, surveys-catalogs, galaxies, Deep Radio Sky, Extragalactic survey
Citation
Jiménez-Andrade, E.F., Murphy, E.J., Momjian, E., Condon, J.J., Chary, R.R., Taylor, R. and Dickinson, M., 2024. A Census of the Deep Radio Sky with the VLA I: 10GHz Survey of the GOODS-N field. arXiv preprint arXiv:2406.13801.