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Discovery of VHE gamma-ray emission from the BL Lac object B3 2247+381 with the MAGIC telescopes


Aleksić, Jelena; ...; Dominis Prester, Dijana; ...; Ferenc, Daniel; ...; Godinović, Nikola; ...; Hrupec, Dario; ... et al.
Discovery of VHE gamma-ray emission from the BL Lac object B3 2247+381 with the MAGIC telescopes // Astronomy & Astrophysics, 539 (2012), A118-1 doi:10.1051/0004-6361/201117967 (međunarodna recenzija, članak, znanstveni)


Naslov
Discovery of VHE gamma-ray emission from the BL Lac object B3 2247+381 with the MAGIC telescopes

Autori
Aleksić, Jelena ; ... ; Dominis Prester, Dijana ; ... ; Ferenc, Daniel ; ... ; Godinović, Nikola ; ... ; Hrupec, Dario ; ... ; Lelas, Damir ; ... ; Puljak, Ivica ; ... ; Surić, Tihomir ; ... ; Šnidarić, Iva ; ... ; Terzić, Tomislav ; ... ; Buson, S.

Izvornik
Astronomy & Astrophysics (0004-6361) 539 (2012); A118-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
BL Lac objects: individual(B3 2247+381); galaxies:active; gamma rays

Sažetak
We study the non-thermal jet emission of the BL Lac object B3 2247+381 during a high optical state. The MAGIC telescopes observed the source during 13 nights between September 30th and October 30th 2010, collecting a total of 14.2 hours of good quality very high energy (VHE) gamma-ray data. Simultaneous multiwavelength data was obtained with X-ray observations by the Swift satellite and optical R-band observations at the KVA-telescope. We also use high energy gamma-ray (HE, 0.1 GeV-100 GeV) data from the Fermi satellite. The BL Lac object B3 2247+381 (z=0.119) was detected, for the first time, at VHE gamma-rays at a statistical significance of 5.6 sigma. A soft VHE spectrum with a photon index of -3.2 +- 0.6 was determined. No significant short term flux variations were found. We model the spectral energy distribution using a one-zone SSC-model, which can successfully describe our data.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0982931-2875 - Foton-atom međudjelovanje i korelacije (Tihomir Surić, )
HRZZ-02.01/12 - Astročestična fizika u Hrvatskoj - razvoj tehnološke baze i višeinstitucionalne suradnje kao preduvjeta za ravnopravno djelovanje u novim međunarodnim projektima (Daniel Ferenc, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Sveučilište u Rijeci - Odjel za fiziku

Časopis indeksira:


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


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