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The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations
Astronomy & Astrophysics, 684 (2024); A19. https://doi.org/10.1051/0004-6361/202346947
Šlaus, Bruno; Smolčić, Vernesa; Ivezić, Željko; Fotopoulou, S.; Willott, C. J.; Pendo, P.; Vignali, C.; Chiappetti, L.; Pierre, M.

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Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

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Šlaus, B., Smolčić, V., Ivezić, Ž., Fotopoulou, S., Willott, C. J., Pendo, P. ... Pierre, M. (2024). The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations. Astronomy & Astrophysics, 684.. doi: 10.1051/0004-6361/202346947

Šlaus, Bruno, et al. "The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations." Astronomy & Astrophysics, vol. 684, 2024. https://doi.org/10.1051/0004-6361/202346947

Šlaus, Bruno, Vernesa Smolčić, Željko Ivezić, S. Fotopoulou, C. J. Willott, P. Pendo, C. Vignali, L. Chiappetti i M. Pierre. "The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations." Astronomy & Astrophysics 684 (2024). https://doi.org/10.1051/0004-6361/202346947

Šlaus, B., et al. (2024) 'The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations', Astronomy & Astrophysics, 684. doi: 10.1051/0004-6361/202346947

Šlaus B, Smolčić V, Ivezić Ž, Fotopoulou S, Willott CJ, Pendo P, i sur.. The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations. Astronomy & Astrophysics [Internet]. 28.03.2024. [pristupljeno 28.03.2025.];684. doi: 10.1051/0004-6361/202346947

B. Šlaus, et al., "The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations", Astronomy & Astrophysics, vol. 684, Ožujak 2024. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:177640. [Citirano: 28.03.2025.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:177640
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Naslov (engleski)The XXL survey. LII. The evolution of radio AGN LF determined via parametric methods from GMRT, ATCA, VLA, and Cambridge interferometer observations
AutorBruno Šlaus
AutorVernesa Smolčić
AutorŽeljko Ivezić
AutorS. Fotopoulou
AutorC. J. Willott
AutorP. Pendo
AutorC. Vignali
AutorL. Chiappetti
AutorM. Pierre
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
We model the evolution of active galactic nuclei (AGN) by constructing their radio LFs. We used a set of surveys of varying area and depth, namely, the deep COSMOS survey of 1916 AGN sources; the wide, shallow 3CRR, 7C, and 6CE surveys, together containing 356 AGN; and the intermediate XXL-North and South fields consisting of 899 and 1484 sources, respectively. We also used the CENSORS, BRL, Wall & Peacock, and Config surveys, respectively consisting of 150, 178, 233, and 230 sources.... Više Together, these surveys account for 5446 AGN sources and constrained the LFs at high redshift and over a wide range of luminosities (up to z ≈ 3 and log(L/W Hz−1 ) ∈ [22, 29]). We concentrated on parametric methods within the Bayesian framework, which allowed us to perform model selection between a set of different models. By comparing the marginalised likelihoods and both the Akaike information criterion and the Bayesian information criterion, we show that the luminosity-dependent density evolution (LDDE) model fits the data best, with evidence ratios varying from “strong” (>10) to “decisive” (>100), according to the Jeffreys’ interpretation. The bestfitting model gives insight into the physical picture of AGN evolution, where AGN evolve differently as a function of their radio luminosity. We determined the number density, luminosity density, and kinetic luminosity density as a function of redshift, and we observed a flattening of these functions at higher redshifts, which is not present in simpler models. We explain these trends by our use of the LDDE model. Finally, we divided our sample into subsets according to the stellar mass of the host galaxies in order to investigate a possible bimodality in evolution. We found a difference in LF shape and evolution between these subsets. All together, these findings point to a physical picture where the evolution and density of AGN cannot be explained well by simple models but require more complex models either via AGN sub-populations, where the total AGN sample is divided into sub-samples according to various properties, such as optical properties and stellar mass, or via luminosity-dependent functions. Sakrij dio sažetka
Ključne riječi (hrvatski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaAstronomy & Astrophysics
Brojčani podacivol. 684, A19
p-ISSN0004-6361
e-ISSN1432-0746
DOIhttps://doi.org/10.1051/0004-6361/202346947
URN:NBNurn:nbn:hr:217:177640
Datum objave publikacije2024-03-28
ProjektŠifra: IP-2018-01-2889
Naziv (hrvatski): Razumijevanje zračenja na niskim radio frekvencijama: ususret novoj generaciji radio teleskopa
Kratica: LowFreqCRO
Voditelj: Vibor Jelić
Pravna nadležnost: Hrvatska
Financijer: Hrvatska zaklada za znanost
Linija financiranja: Research Projects
URL dokumentahttps://www.aanda.org/10.1051/0004-6361/202346947
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Javna napomenac The Authors 2024. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This article is published in open access under the Subscribe to Open model. Subscribe to A&A to support open access publication. Received 19 May 2023; Accepted 11 December 2023; Published online 28 March 2024.
Datum i vrijeme pohrane2024-06-10 12:25:32
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