J/A+A/676/A102ivo://CDS.VizieR/J/A+A/676/A102doi:10.26093/cds/vizier.36760102CDSCapetti A.Brienza M.2024-11-28T20:04:32Z2024-05-02T08:44:58ZCDS support team

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

cds-question@unistra.frradio-galaxiesactive-galactic-nucleiWe extend the study of the radio emission in early-type galaxies (ETGs) in the nearby Universe (recession velocity <7500km/s) as seen by the 150MHz Low-Frequency ARray (LOFAR) observations and extend the sample from giant ETGs to massive (~6x10^10^-3x10^11^M_{sun}_) ETGs (mETGS) with -25<M_K_<-23.5. Images from the second data release of the LOFAR Two-metre Sky Survey were available for 432 mETGs, 48% of which are detected above a typical luminosity of ~3x10^20^W/Hz. Most (85%) of the detected sources are compact, with sizes ~4kpc. The radio emission of 31 mETGs is extended on scales ranging from 2 to 180kpc (median 12kpc). In several cases, it is aligned with the host galaxy. We set a limit of <~1% to the fraction of remnant or restarted objects, which is <~16% of the extended sources. We found that the properties of the radio sources are connected with the stellar mass of the ETGs (the median radio power, the fraction of extended radio sources, and the link with the large-scale environment). However, these results only describe statistical trends because the radio properties of sources of similar stellar mass and environment show a large spread of radio properties. These trends break at the lowest host luminosities (M_K_>-24.5). This effect is strengthened by the analysis of even less massive ETGs, with -23.5<M_K_<-21.5. This suggests that at a mass of ~2x10^11^M_{sun}_, a general transition occurs from radio emission produced from radio-loud active galactic nuclei (AGN) to processes related to the host galaxy and (or) radio quiet AGN. At this luminosity, a transition in the stellar surface brightness profile also occurs from Sersic galaxies to those with a depleted stellar core, the so-called core galaxies. This finding is in line with previous results that indicated that only core galaxies host radio-loud AGN.2023A&A...676A.102Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/676/A102CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/598/A104 : LOFAR Two-metre Sky Survey (Shimwell+, 2017)J/A+A/622/A1 : LOFAR Two-metre Sky Survey DR1 source catalog (Shimwell+ 2019)J/A+A/648/A2 : LOFAR Two-metre Sky Survey Deep Fields DR1 (Sabater+, 2021)J/A+A/648/A3 : LOFAR Two-metre Sky Survey Deep Fields DR1 (Kondapally+, 2021)J/A+A/648/A104 : LOFAR LBA Sky Survey. I. (de Gasperin+, 2021)J/A+A/659/A1 : LOFAR Two-metre Sky Survey (LoTSS) DR2 (Shimwell+, 2022)J/A+A/673/A165 : LOFAR LBA Sky Survey First Release (de Gasperin+, 2023)J/A+A/674/A119 : LoTTS Deep Fields ELAIS-N1 (Snidaric+, 2023)J/A+A/674/A189 : Matching LOFAR sources across radio bands (Boehme+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/676/A102https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/676/A102http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/676/A102https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/676/A102https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/676/A102http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/676/A102GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/676/A102/tabled1 (Radio properties of the lmETG sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/676/A102/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/676/A102/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/676/A102/tabled1?GETtext/xml+votable180.050000true0.361631.43370.0055555555555555566/652-653 692 697 733 749 757 896 905 907 926 932 940-941 948 953 958 2077 2123 2131 2134-2135 2140 2142-2143 2145 2160 2165-2166 2201-2202 2214-2215 2218-2219 2222-2223 2227-2228 2230-2231 2236 2247 2250-2251 2257 2265 2273 2297 2349 2353 2358 2383 2392 2394 2403 2405 2407 2409 2412 2416 2432-2433 2436 2452 2474 2560 2564-2565 2658 2694 2704 4852 4967 4985 4987-4988 4990 5024 5037 5061 5078 5179 5182 5293 5296 5298 5357 5415 5429 5472 5558 5560 5562 5564 5608 5635 5661 5663 5669 5677 5680 5688 5701 5703 5724 5749 5789 5820 5824 5836 5905 5907 5915 5918-5919 5975 5978 6000 6064 6087 6099 6103 6213 6227-6228 6263 6293 6337 6343 6350 6439 6459 6481 6500 6539-6541 6592 6595-6596 6606 6646 6996 7198 7287 7309 7356 7369 7420 7488 7560 7585 7696 7761 7770 9110 9126 9146 9215 9385 9562 9767 9873 9875 9883 9899 9946-9947 9991 10031 10166 10169 10171 10174 10209 10350 10364 10366-10367 10374-10375 10378-10379 10382 10393 10399-10401 10429 10471 10484 10520 10560 10566 10572 10594 10625 10628-10630 10633 10638 10759 10773 10778 10811 10894 10930 10956 11026 11068 11081 11150 11158 11164 11187-11188 11234 11246 11327 11418 11435 11443 11592 11668 11776 11802 11824 11832 11859 11886 13336 13403-13405 13426-13427 13430 13433 13484 13503 13511-13512 13518 13520 13522-13523 13528 13532 13541-13543 13547 13550 13552 13601 13697-13698 14907 14909-14910 15002 15012 15034 15040 19797 19832 19879 19891 19897-19898 19900 19911 19917-19918 19921 19923-19924 19943 19949 19965 20042 20101 20144 20160 20180-20181 20187 20190 20214 20216 20220-20221 20241 20277 20283 20298 20303 20308-20309 20321 20324-20325 20332-20333 20336 20362 20365 20370 20372 20380 20386 20388 20390 20392 20403 20417 20421 20432 20441 28125 28127 28148-28149 28151 28491 28513 28515 28538 28573 28577 28597 28633 28635-28636 28639 28646 28653 28661 32575 32614 32616 32628 326609.939104750406538e-26 9.939104750406538e-26https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/676/A102?format=asciiRadiodefaultJ/A+A/676/A102/tabled1Radio properties of the lmETG sampleNameNamemeta.id;meta.maincharSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainvrecession velocitykm/sphys.velocintKMAGK-band absolute magnitudemagphot.magfloatrmsr.m.s. noise of the LOFAR imagemJy/beamstat.stdev;instr.det.noise;obs.imagefloatl_F150Limit flag on F150meta.code.errorcharF150Flux density at 150MHz from LOFARmJyphot.flux.density;em.radio.100-200MHzfloate_F150? Flux density at 150MHz from LOFAR errormJystat.errorfloatnullablel_L150Limit flag on L150meta.code.errorcharL150Luminosity at 150NHz from LOFARW/Hzphys.luminosityfloatn_L150[EP] E for extended, P for unresolved or marginally resolvedmeta.notechar