prikaz prve stranice dokumenta Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
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Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
Astronomy & Astrophysics, 694 (2025); A308. https://doi.org/10.1051/0004-6361/202451378
(MAGIC) Abe, S; Babić, Ana; Bošnjak, Željka; Dominis Prester, Dijana; Hrupec, Dario; Manganaro, Marina; Strišković, Jelena; Terzić, Tomislav

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Abe, S., Babić, A., Bošnjak, Ž., Dominis Prester, D., Hrupec, D., Manganaro, M. ... Terzić, T. (2025). Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020. Astronomy & Astrophysics, 694.. doi: 10.1051/0004-6361/202451378

Abe, S, et al. "Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020." Astronomy & Astrophysics, vol. 694, 2025. https://doi.org/10.1051/0004-6361/202451378

Abe, S, Ana Babić, Željka Bošnjak, Dijana Dominis Prester, Dario Hrupec, Marina Manganaro, Jelena Strišković i Tomislav Terzić. "Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020." Astronomy & Astrophysics 694 (2025). https://doi.org/10.1051/0004-6361/202451378

Abe, S., et al. (2025) 'Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020', Astronomy & Astrophysics, 694. doi: 10.1051/0004-6361/202451378

Abe S, Babić A, Bošnjak Ž, Dominis Prester D, Hrupec D, Manganaro M, i sur.. Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020. Astronomy & Astrophysics [Internet]. 2025. [pristupljeno 09.04.2025.];694. doi: 10.1051/0004-6361/202451378

S. Abe, et al., "Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020", Astronomy & Astrophysics, vol. 694, 2025. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:168:501075. [Citirano: 09.04.2025.]

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Naslov (engleski)Time-dependent modelling of short-term variability in the TeV-blazar VER J0521+211 during the major flare in 2020
AutorS Abe
AutorAna Babić
AutorŽeljka Bošnjak
AutorDijana Dominis Prester
AutorDario Hrupec
AutorMarina Manganaro
AutorJelena Strišković
AutorTomislav Terzić
KolaboracijaMAGIC
Autorova ustanovaSveučilište u Zagrebu
Fakultet elektrotehnike i računarstva
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Astronomija i astrofizika
Sažetak (engleski)
The BL Lacertae object VER J0521+211 underwent a notable flaring episode in February 2020. A short-term monitoring campaign, led by the MAGIC (Major Atmospheric Gamma Imaging Cherenkov) collaboration, covering a wide energy range from radio to very high-energy (VHE, 100 GeV < E <100 TeV) gamma rays was organised to study its evolution. These observations resulted in a consistent detection of the source over six consecutive nights in the VHE gamma-ray domain. Combining these nightly... Više observations with an extensive set of multi-wavelength data made modelling of the blazar’s spectral energy distribution (SED) possible during the flare. This modelling was performed with a focus on two plausible emission mechanisms: (i) a leptonic two-zone synchrotron-self-Compton scenario, and (ii) a lepto-hadronic one-zone scenario. Both models effectively replicated the observed SED from radio to the VHE gamma-ray band. Furthermore, by introducing a set of evolving parameters, both models were successful in reproducing the evolution of the fluxes measured in different bands throughout the observing campaign. Notably, the lepto-hadronic model predicts enhanced photon and neutrino fluxes at ultra-high energies (E >100 TeV). While the photon component, generated via decay of neutral pions, is not directly observable as it is subject to intense pair production (and therefore extinction) through interactions with the cosmic microwave background photons, neutrino detectors (e.g. IceCube) can probe the predicted neutrino component. Finally, the analysis of the gamma-ray spectra, observed by MAGIC and the Fermi-LAT telescopes, yielded a conservative 95% confidence upper limit of z ≤0.244 for the redshift of this blazar. Sakrij dio sažetka
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaAstronomy & Astrophysics
Brojčani podacivol. 694, A308
BPC0 EUR
p-ISSN0004-6361
e-ISSN1432-0746
DOIhttps://doi.org/10.1051/0004-6361/202451378
URN:NBNurn:nbn:hr:168:501075
Datum objave publikacije2025
ProjektŠifra: IP-2022-10-4595
Naziv (hrvatski): Astronomija gama-zraka visokih energija u doba višečestičnih opažanja
Naziv (engleski): Very-high-energy Gamma Ray Astronomy in the Multi-messenger Era
Kratica: ASTRO-GAMMA
Voditelj: Marina Manganaro
Pravna nadležnost: Hrvatska
Financijer: Hrvatska zaklada za znanost
Linija financiranja: Research Projects
URL dokumentahttps://www.aanda.org/articles/aa/full_html/2025/02/aa51378-24/aa51378-24.html
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Datum i vrijeme pohrane2025-03-28 16:04:17
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