J/A+A/690/A195ivo://CDS.VizieR/J/A+A/690/A195doi:10.26093/cds/vizier.36900195CDSSpasic A.Edler H.W.Su Y.Brueggen M.de Gasperin F.Pasini T.,Heesen V.Simonte M.Boselli A.Roettgering H.J.A.Fossati M.2025-02-24T20:01:45Z2024-10-10T08:33:11ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleigalaxy-clustersradio-galaxiesThe evolution of active galactic nuclei (AGNs) is closely connected to their host galaxies and surroundings. Via feedback processes, AGNs can counteract the cooling of the intracluster medium (ICM) and suppress star formation in their host galaxies. Radio observations at low frequencies provide a glimpse into the history of AGN activity. The Virgo cluster is a substantial reservoir of nearby galaxies and provides an ideal laboratory for the study of AGNs as well as their feedback mechanisms. The aim of our work is to characterise the AGN population within the Virgo cluster down to low radio luminosities, constrain the AGN duty cycle, and investigate environmental feedback in cluster member galaxies. We analysed 144MHz and 1.3GHz radio observations of early-type galaxies from the ACS Virgo Cluster Survey (ACSVCS) taken with LOFAR and MeerKAT. We detect 12 of these galaxies at 144MHz, five of which show clearly extended radio emission. The radio luminosity shows a strong dependence on the stellar mass of the host galaxy, in agreement with previous results. As a notable outlier, the massive elliptical galaxy NGC4365 (M_*_=2.2x10^11^M_{sun}_) is not detected as compact source in the LOFAR observations. Instead, it is surrounded by diffuse, low-surface brightness emission, which hints towards a past phase of stronger nuclear activity. Furthermore, we find a cavity in NGC4472 (= M49) inflated by the wide-angle tail only visible in the LOFAR data, which implies that the cavity was created by a past outburst. The corresponding cavity power is of the same order of magnitude as the jet power in the present duty cycle of the AGN.2024A&A...690A.195Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/690/A195CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/676/A24 : The LOFAR HBA Virgo Cluster Survey (Edler+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/690/A195https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/690/A195http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/690/A195https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/690/A195https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/690/A195http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/690/A195GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/690/A195/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/690/A195/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/690/A195/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/690/A195/list?GETtext/xml+votable180.050000true187.7052812.888920.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/690/A1956/27719 27728 27765 27767 27906-27907 27913 27936 27938 27944https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/690/A195?format=asciiRadiodefaultJ/A+A/690/A195/listList of fits imagessizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharAssocDataAssociated Data web pagemeta.ref.urlcharrecnoRecord 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.numberint