{"paper":{"title":"Catching butterflies in the sky: Extended catalog of winged or X-shaped radio sources from the latest FIRST data release","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Gopal-Krishna (ARIES), Jun Yang (OSO), Luis C. Ho (KIAA-PKU), Paul J. Wiita (TCNJ), Ran Wang (KIAA-PKU), Ravi Joshi (KIAA-PKU), Tao An (SHAO), Xiang Liu (XAO), Xiaofeng Yang (XAO), Xiaolong Yang (KIAA-PKU), Xuebing Wu (KIAA-PKU)","submitted_at":"2019-05-15T18:00:53Z","abstract_excerpt":"We present a catalog of 290 \"winged\" or X-shaped radio galaxies (XRGs) extracted from the latest (2014 December 17) data release of the \"Very Large Array Faint Images of the Radio Sky at Twenty centimeter.\" We have combined these radio images with their counterparts in the TIFR GMRT sky survey at 150 MHz, in an attempt to identify any low surface brightness radio emission present in these sources. This has enabled us to assemble a sample of 106 \"strong\" XRG candidates and 184 \"probable\" XRG candidates whose XRG designation needs to be verified by further observations. The present sample of 290"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.06356","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1905.06356/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}