Morphological Annotations for Groups in the FIRST Database

Abstract

The morphology of selected groups of sources in the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) survey and catalog is examined. Sources in the FIRST catalog (April 2003 release, 811117 entries) were sorted into singles, doubles, triples and groups of higher-count membership based on a proximity criteria. The 7106 groups with four or more components were examined individually for bent types including, but not limited to, wide-angle tail (WAT) and narrow-angle tail (NAT) types. In the process of this examination, ring, double-double (DD), X-shaped, hybrid morphology (HYMOR), giant radio sources (GRS), and the herein described W-shaped and tri-axial morphology systems were also identified. For the convenience of the reader separate tables for distinctive types were generated. A few curiosities were found. For the 16,950 three-component groups and 74,788 two-component groups, catalogs with probability estimates for bent classification, as determined by pattern recognition techniques, are presented.

76 pages, 30 figures Accepted by Astrophysical Journal Supplement Series

References in corpus (19)

• The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample
• Filaments, Bubbles, and Weak Shocks in the Gaseous Atmosphere of M87
• FIRST `Winged' and `X'-shaped Radio Source Candidates
• The Cosmic Horseshoe: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy
• GMRT observations of X-shaped radio sources
• Two New Large Separation Gravitational Lenses from SDSS
• A Molecular Einstein Ring at z=4.12: Imaging the Dynamics of a Quasar Host Galaxy Through a Cosmic Lens
• J0041+3224: a new double-double radio galaxy
• Three episodes of jet activity in the FRII radio galaxy B0925+420
• Discovery of a strong spiral magnetic field crossing the inner pseudoring of NGC 4736
• Head-Tail Galaxies: Beacons of High-Density Regions in Clusters
• Deep low-frequency observations with the Giant Metrewave Radio Telescope: a search for relic radio emission
• The new sample of giant radio sources III. Statistical trends and correlations
• SDSS J1130+0058 an X-shaped Radio Source With Double-Peaked Low-Ionization Emission Lines: A binary Black Hole System?
• Three-Dimensional Simulations of Inflows Irradiated by a Precessing Accretion Disk in Active Galactic Nuclei: Formation of Outflows
• Comparing Pattern Recognition Feature Sets for Sorting Triples in the FIRST Database
• Chandra Observation of the Cluster Environment of a WAT Radio Source in Abell 1446
• A QSO plus host system lensed into a 6" Einstein ring by a low redshift galaxy
• "Normal" FRII Radio Galaxies as a Probe of the Nature of X-Shaped Radio Sources

Cited by in corpus (39)

• Classifying Radio Galaxies with Convolutional Neural Network
• Radio Galaxy Zoo: host galaxies and radio morphologies derived from visual inspection
• An updated catalogue of giant radio sources
• A Machine Learning Based Morphological Classification of 14,245 Radio AGNs Selected From The Best-Heckman Sample
• CNN Architecture Comparison for Radio Galaxy Classification
• Radio Galaxy Zoo: A Search for Hybrid Morphology Radio Galaxies
• Nature and evolution of powerful radio galaxies and their link with the quasar luminosity function
• The FIRST Classifier: Compact and Extended Radio Galaxy Classification using Deep Convolutional Neural Networks
• Catching butterflies in the sky: Extended catalog of winged or X-shaped radio sources from the latest FIRST data release
• A Selection of Giant Radio Sources from NVSS
• Radio sources associated with Optical Galaxies and having Unresolved or Extended morphologies (ROGUE). I. A catalog of SDSS galaxies with FIRST core identifications
• Morphological classification of compact and extended radio galaxies using convolutional neural networks and data augmentation techniques
• FIRST winged radio galaxies with X and Z symmetry
• A low-frequency study of recently identified double-double radio galaxies
• A Quick Look at the 3GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey
• A New Catalog of Head Tail Radio Galaxies from the VLA FIRST Survey
• Energy injection driven by precessing jets in gamma-ray burst afterglows
• Feature Guided Training and Rotational Standardisation for the Morphological Classification of Radio Galaxies
• Morphological Classification of Radio Galaxies with wGAN-supported Augmentation
• Search for X/Z-shaped radio sources from TGSS ADR 1
• Multifrequency study of a double-double radio galaxy J0028+0035
• Radio Sources Segmentation and Classification with Deep Learning
• Tailed Radio Galaxies from the TIFR GMRT Sky Survey
• Multifrequency study of a double-double radio galaxy J1706+4340
• Fraction of broad absorption line quasars in different radio morphologies
• Discovery of a red quasar with recurrent activity
• A new catalogue of head-tail radio galaxies from LoTSS DR1
• Polarization in early optical afterglows of gamma-ray bursts driven by precessing jets
• Identification of 4876 Bent-Tail Radio Galaxies in the FIRST Survey Using Deep Learning Combined with Visual Inspection
• Complex morphology and precession indicators of AGN jets in LoTSS DR2
• Morphological Classification of Radio Galaxies using Semi-Supervised Group Equivariant CNNs
• EMU and the DRAGNs I: A Catalogue of DRAGNs
• From Nearby Low Luminosity AGN to High Redshift Radio Galaxies: Science Interests with SKA
• Catalog of One-side Head-Tail Galaxies in the FIRST Survey
• Multi-wavelength follow-up of FRB 180309
• A Morphological Identification and Study of Radio Galaxies from LoTSS DR2. I. The "Winged'' Radio Galaxies
• Quantifying Radio Source Morphology
• RGC-Bent: A Novel Dataset for Bent Radio Galaxy Classification
• Wide-field GMRT imaging of X-shaped Radio-Galaxies: Spectral properties of 4C32.25 and 4C61.23