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- W4360888911 abstract "Active Galactic Nuclei (AGN) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet. This multi-component morphology unfortunately creates difficulties for source-finders, leading to components that are a) separate parts of a wider whole, and b) offset from the multiwavelength cross identification of the host galaxy. In this work we define an algorithm, textsc{DRAGNhunter}, for identifying Double Radio Sources associated with Active Galactic Nuclei (DRAGNs) from component catalog data in the first epoch textit{Quick Look} images of the high resolution ($approx 3''$ beam size) Very Large Array Sky Survey (VLASS). We use textsc{DRAGNhunter} to construct a catalog of $>17,000$ DRAGNs in VLASS for which contamination from spurious sources is estimated at $approx 11,%$. A `high-fidelity' sample consisting of $90,%$ of our catalog is identified for which contamination is $<3,%$. Host galaxies are found for $approx 13,000$ DRAGNs as well as for an additional $234,000$ single-component radio sources. Using these data we explore the properties of our DRAGNs, finding them to be typically consistent with Fanaroff-Riley class II sources and allowing us to report the discovery of $31$ new giant radio galaxies identified using VLASS." @default.
- W4360888911 created "2023-03-25" @default.
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- W4360888911 date "2023-03-22" @default.
- W4360888911 modified "2023-09-26" @default.
- W4360888911 title "A Quick Look at the 3GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey" @default.
- W4360888911 doi "https://doi.org/10.48550/arxiv.2303.12830" @default.
- W4360888911 hasPublicationYear "2023" @default.
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