Search for hybrid morphology radio galaxies from FIRST survey at 1400 MHz

Abstract

Hybrid Morphology Radio Sources (HyMoRS) are a very rare subclass of radio galaxies with apparent mixed FR morphology, i.e. these galaxies seem to have an FR-I structure on one side of the core and an FR-II structure on the other side of the core. We systematically searched for HyMoRS using Very Large Array (VLA) Faint Images of the Radio Sky at Twenty-cm (FIRST) survey with 1400 MHz frequency and identified 33 candidate HyMoRS. Our finding significantly increased the known sample size of HyMoRS. HyMoRS may play an essential role in understanding the interaction of jets with the interstellar medium and the much-debated topic of the FR dichotomy. We identified optical counterparts for 29 sources in our catalogue. In our sample of sources, one source (J1106+1355) had quasar-like behaviour. Four sources were BRCLG (Brightest Cluster Galaxies) and six were LRG (Luminous Red Galaxies). We have estimated the spectral index and radio luminosity of HyMoRS in our catalogue, when possible. We found that J1136--0328 was the most luminous source in our sample ($\log L=27.01$ W Hz${}^{-1}$sr${}^{-1}$). It was also the farthest HyMoRS (with a redshift $z$ = 0.82) in our sample. With the help of a large sample size of discovered sources, various statistical properties of detected galaxies were studied.

arXiv comment10 pages, Published on 6th July (MNRAS)

References in corpus (36)

• Gaia Data Release 2. Summary of the contents and survey properties
• The Seventh Data Release of the Sloan Digital Sky Survey
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey
• The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
• The 2MASS Redshift Survey - Description and Data Release
• The LOFAR Two-metre Sky Survey - I. Survey Description and Preliminary Data Release
• The VLA Low-frequency Sky Survey
• A 20cm VLA Survey of Abell Clusters of Galaxies VI. Radio/Optical Luminosity Functions
• The matter content of the jet in M87: evidence for an electron-positron jet
• Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
• A survey of Low Luminosity Compact sources and its implication for evolution of radio-loud AGNs. I. Radio data
• FIRST `Winged' and `X'-shaped Radio Source Candidates
• Evolution of the Radio Loud Galaxy Population
• FRII{\sl{CAT}}: A FIRST catalog of FR~II radio galaxies
• The Lockman Hole project: LOFAR observations and spectral index properties of low-frequency radio sources
• On the Populations of Radio Galaxies with Extended Morphology at z<0.3
• Hybrid morphology radio sources from FIRST survey
• The B3-VLA CSS sample. II: VLBA images at 18 cm
• Deep Learning for space-variant deconvolution in galaxy surveys
• 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
• Unveiling the cause of hybrid morphology radio sources (HyMoRS)
• Catching butterflies in the sky: Extended catalog of winged or X-shaped radio sources from the latest FIRST data release
• FIRST-based survey of Compact Steep Spectrum sources, IV. Multifrequency VLBA observations of very compact objects
• FIRST "Winged" and X-shaped Radio Source Candidates: II. New Redshifts
• Spectral ageing in the era of big data: integrated vs resolved models
• Signatures of restarted activity in core-dominated, triple radio sources selected from the FIRST survey
• Understanding the Fanaroff-Riley radio galaxy classification
• FIRST winged radio galaxies with X and Z symmetry
• The B3-Vla CSS sample. III: Evn & Merlin images at 18 cm
• FIRST-based survey of Compact Steep Spectrum sources I. MERLIN images of arc-second scale objects
• A New Catalog of Head Tail Radio Galaxies from the VLA FIRST Survey
• A Rescaled Subset of the Alternative Data Release 1 of the TIFR GMRT Sky Survey
• Multifrequency study of a new Hybrid Morphology Radio Source

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• A Machine Learning made Catalog of FR-II Radio Galaxies from the FIRST Survey
• Circular Mystery: Exploring Diffuse Emission Surrounding a Radio Galaxy with uGMRT and VLA Multiwavelength Observations