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Pregled bibliografske jedinice broj: 1068544

An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state


(MAGIC Collaboration) MAGIC Collaboration: Acciari, V A; ... Babić, A; ... Bošnjak, Ž; ... Cikota, S; ... Dominis Prester, D; ... Godinović, N; ... Hrupec, D; ... Manganaro, M; ... Mićanović, S; ... Pavletić, L et al.
An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state // Monthly Notices of the Royal Astronomical Society (2020) doi:10.1093/mnras/staa1702 (znanstveni, poslan)


Naslov
An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state
(An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state)

Autori
MAGIC Collaboration: Acciari, V A ; ... Babić, A ; ... Bošnjak, Ž ; ... Cikota, S ; ... Dominis Prester, D ; ... Godinović, N ; ... Hrupec, D ; ... Manganaro, M ; ... Mićanović, S ; ... Pavletić, L ; ... Puljak, I ; ... Šnidarić, I ; ... Surić, T ; ... Terzić, T ; ... Zarić, D ; ; FACT Collaboration: Baack, D ; .... MWL Collaborators: J Acosta ; ... Šegon, M ; et al.

Kolaboracija
MAGIC Collaboration

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
Monthly Notices of the Royal Astronomical Society (2020)

Status rada
Poslan

Ključne riječi
BL Lacertae objects: individual: 1ES 2344+514 – galaxies: active –gamma-rays: galaxies

Sažetak
Extreme High-frequency BL~Lacs (EHBL) feature their synchrotron peak of the broadband spectral energy distribution (SED) at νs≥1017\, Hz. The BL~Lac object 1ES~2344+514 was included in the EHBL family because of its impressive shift of the synchrotron peak in 1996. During the following years, the source appeared to be in a low state without showing any extreme behaviours. In August 2016, 1ES~2344+514 was detected with the ground-based γ-ray telescope FACT during a high γ-ray state, triggering multi-wavelength (MWL) observations. We studied the MWL light curves of 1ES~2344+514 during the 2016 flaring state, using data from radio to VHE γ rays taken with OVRO, KAIT, KVA, NOT, some telescopes of the GASP-WEBT collaboration at the Teide, Crimean, and St. Petersburg observatories, \textit{; ; ; ; ; Swift}; ; ; ; ; -UVOT, \textit{; ; ; ; ; Swift}; ; ; ; ; -XRT, \textit{; ; ; ; ; Fermi}; ; ; ; ; -LAT, FACT and MAGIC. With simultaneous observations of the flare, we built the broadband SED and studied it in the framework of a leptonic and an hadronic model. The VHE γ-ray observations show a flux level of 55\% of the Crab Nebula flux above 300\, GeV, similar to the historical maximum of 1995. The combination of MAGIC and \textit{; ; ; ; ; Fermi}; ; ; ; ; -LAT spectra provides an unprecedented characterization of the inverse-Compton peak for this object during a flaring episode. The Γ index of the intrinsic spectrum in the VHE γ-ray band is 2.04±0.12stat±0.15sys. We find the source in an extreme state with a shift of the position of the synchrotron peak to frequencies above or equal to 1018\, Hz

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Leading author: Manganaro M.



POVEZANOST RADA


Projekt / tema
13.12.1.3.02
HRZZ-IP-2016-06-9782 - Visokoenergijska astronomija gama-zraka teleskopima MAGIC i CTA (Nikola Godinović, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Splitu,
Sveučilište u Osijeku - Odjel za fiziku,
Sveučilište u Zagrebu,
Sveučilište u Rijeci - Odjel za fiziku,
Sveučilište u Rijeci

Citiraj ovu publikaciju

(MAGIC Collaboration) MAGIC Collaboration: Acciari, V A; ... Babić, A; ... Bošnjak, Ž; ... Cikota, S; ... Dominis Prester, D; ... Godinović, N; ... Hrupec, D; ... Manganaro, M; ... Mićanović, S; ... Pavletić, L et al.
An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state // Monthly Notices of the Royal Astronomical Society (2020) doi:10.1093/mnras/staa1702 (znanstveni, poslan)
(MAGIC Collaboration) (MAGIC Collaboration) MAGIC Collaboration: Acciari, V., ... Babić, A., ... Bošnjak, Ž., ... Cikota, S., ... Dominis Prester, D., ... Godinović, N., ... Hrupec, D., ... Manganaro, M., ... Mićanović, S. & ... Pavletić, L. (2020) An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state. Poslan u Monthly Notices of the Royal Astronomical Society. [Preprint] doi:10.1093/mnras/staa1702.
@unknown{unknown, year = {2020}, DOI = {10.1093/mnras/staa1702}, keywords = {BL Lacertae objects: individual: 1ES 2344+514 – galaxies: active –gamma-rays: galaxies}, journal = {Monthly Notices of the Royal Astronomical Society}, doi = {10.1093/mnras/staa1702}, title = {An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state}, keyword = {BL Lacertae objects: individual: 1ES 2344+514 – galaxies: active –gamma-rays: galaxies} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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