J/A+A/668/A64ivo://CDS.VizieR/J/A+A/668/A64doi:10.26093/cds/vizier.36680064CDSDabhade P.Shimwell T.W.Bagchi J.Saikia D.J.Combes F.Gaikwad M.,Rottgering H.Mohapatra A.Ishwara-Chandra C.H.Intema H.,Raychaudhury S.2024-11-06T20:01:54Z2022-12-02T10:42:28ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frradio-galaxiesradio-continuum-emissionWe present for the first time a study of peculiar giant radio galaxy (GRG) J223301+131502 using deep multi-frequency radio observations from GMRT (323, 612, and 1300MHz) and LOFAR (144MHz) along with optical spectroscopic observations with the WHT 4.2m optical telescope. Our observations have firmly established its redshift of 0.09956 and unveiled its exceptional jet structure extending more than ~200kpc leading to a peculiar kink structure of ~100kpc. We measure the overall size of this GRG to be ~1.83Mpc; it exhibits lobes without any prominent hotspots and closely resembles a barbell. Our deep low-frequency radio maps clearly reveal the steep-spectrum diffuse emission from the lobes of the GRG. The magnetic field strength of ~5uG and spectral ages between about 110 to 200 mega years for the radio lobes were estimated using radio data from LOFAR 144MHz observations and GMRT 323 and 612MHz observations. We discuss the possible causes leading to the formation of the observed kink feature for the GRG, which include precession of the jet axis, development of instabilities and magnetic reconnection. Despite its enormous size, the Barbell GRG is found to be residing in a low-mass (M_200_~10^14^M_{sun}_) galaxy cluster. This GRG with two-sided large-scale jets with a kink and diffuse outer lobes residing in a cluster environment, provides an opportunity to explore the structure and growth of GRGs in different environments.2022A&A...668A..64Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/668/A64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/668/A64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/668/A64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/668/A64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/668/A64https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/668/A64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/668/A64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/668/A64/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/668/A64/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/668/A64/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/668/A64/list?GETtext/xml+votable180.050000true338.2552113.250490.0055555555555555566/19405https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/668/A64?format=asciiRadiodefaultJ/A+A/668/A64/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datestime.epoch;obsnullableFreqObserved frequencyMHzem.freqfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar