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Radio emission of nearby early-type galaxies in the low and very low radio luminosity range
radio active galactic nuclei
radio galaxies
radio cores
early-type galaxies
radio jets
We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity. The 1.4 GHz radio fluxes collected with ∼arcmin resolution for 62 nearby targets (distances $ \lesssim
cris.lastimport.scopus | 2024-04-07T17:30:44Z | |
cris.lastimport.wos | 2024-04-09T23:42:26Z | |
dc.abstract.en | We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity. The 1.4 GHz radio fluxes collected with ∼arcmin resolution for 62 nearby targets (distances $ \lesssim$153 Mpc) correspond to low and very low monochromatic luminosities of L$_{r}$ ∼ 10$^{35}$-10$^{41}$ erg s$^{-1}$. We quantify possible correlations between the radio properties with the main parameters of SMBHs, host galaxies, and hot gaseous halos, finding a general bimodality in the radio luminosity distribution, with the borderline between radio-bright and radio-dim populations at log L$_{r}$/L$_{Edd} \simeq$ - 8.5. We analyze the far-infrared data for the targets, finding that all radio-bright and over a half of the radio-dim sources are overluminous in radio wavelengths with respect to the far-infrared–radio correlation. High-resolution radio maps reveal that the overwhelming majority of radio-dim sources is unresolved on the arcsecond scale, while the bulk of radio-bright sources display extended jets and lobes of low- and intermediate-power radio galaxies; these jets dominate the radio emission of radio-bright objects. Regarding the origin of the radio emission of radio-dim sources, we discuss two main possibilities. One possibility is the advection-dominated accretion flow model, in which the radio and nuclear X-ray radiative outputs at very low accretion rates are both dominated by unresolved jets. The other possibility is that the radio-dim sources, unlike the radio-bright ones, are characterized by low values of SMBH spins, so that their radio emission is not related to the jets, but instead is due to a combination of star-forming processes and previous nuclear outbursts. | pl |
dc.affiliation | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne | pl |
dc.contributor.author | Wójtowicz, Anna - 215724 | pl |
dc.contributor.author | Stawarz, Łukasz - 132081 | pl |
dc.contributor.author | Cheung, C. C. | pl |
dc.contributor.author | Werner, Norbert | pl |
dc.contributor.author | Rudka, Dominik | pl |
dc.date.accessioned | 2023-03-09T14:59:05Z | |
dc.date.available | 2023-03-09T14:59:05Z | |
dc.date.issued | 2023 | pl |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.number | 2 | pl |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 944 | pl |
dc.identifier.articleid | 195 | pl |
dc.identifier.doi | 10.3847/1538-4357/acb498 | pl |
dc.identifier.eissn | 1538-4357 | pl |
dc.identifier.issn | 0004-637X | pl |
dc.identifier.project | 2016/22/E/ST9/00061 | pl |
dc.identifier.uri | https://ruj.uj.edu.pl/xmlui/handle/item/308902 | |
dc.language | eng | pl |
dc.language.container | eng | pl |
dc.rights | Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa | * |
dc.rights.licence | CC-BY | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/legalcode.pl | * |
dc.share.type | otwarte czasopismo | |
dc.subject.en | radio active galactic nuclei | pl |
dc.subject.en | radio galaxies | pl |
dc.subject.en | radio cores | pl |
dc.subject.en | early-type galaxies | pl |
dc.subject.en | radio jets | pl |
dc.subtype | Article | pl |
dc.title | Radio emission of nearby early-type galaxies in the low and very low radio luminosity range | pl |
dc.title.journal | The Astrophysical Journal | pl |
dc.type | JournalArticle | pl |
dspace.entity.type | Publication |