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Pregled bibliografske jedinice broj: 427203

Discovery of Very High Energy gamma-rays from the blazar S5 0716+714


Anderhub, H.; ...; Dominis Prester, Dijana; ...; Godinović, Nikola; ...; Ferenc, Daniel; ...; Hrupec, Dario; ... et al.
Discovery of Very High Energy gamma-rays from the blazar S5 0716+714 // Astrophysical Journal Supplement Series, 704 (2009), 2; L129-L133 (međunarodna recenzija, članak, znanstveni)


Naslov
Discovery of Very High Energy gamma-rays from the blazar S5 0716+714

Autori
Anderhub, H. ; ... ; Dominis Prester, Dijana ; ... ; Godinović, Nikola ; ... ; Ferenc, Daniel ; ... ; Hrupec, Dario ; ... ; Puljak, Ivica ; ... ; Surić, Tihomir

Izvornik
Astrophysical Journal Supplement Series (0067-0049) 704 (2009), 2; L129-L133

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

Ključne riječi
Gamma-rays:Observations; BL Lacs:individual:S5 0716+714

Sažetak
The MAGIC collaboration reports the detection of the blazar S5 0716+714 (z=0.31+-0.08) in very high energy gamma-rays. The observations were performed in November 2007 and in April 2008, and were triggered by the KVA telescope due to the high optical state of the object. An overall significance of the signal accounts to S =5.8 sigma for 13.1 hours of data. Most of the signal comes from the April 2008 data sample during a higher optical state of the object suggesting a possible correlation between the VHE gamma-ray and optical emissions. The differential energy spectrum of the 2008 data sample follows a power law with a photon index of Gamma = 3.45+-0.54_(stat)+-0.2_(sys), and the integral flux above 400 GeV is at the level of (7.5+-2.2_(stat)+-2.3_(sys))* 10^-12 cm^-2 s^-1. Modeling of the broad band spectral energy distribution indicates that a simple one zone synchrotron self-Compton model cannot describe the available data well whereas the structured jet model can.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0982931-2875 - Foton-atom međudjelovanje i korelacije (Tihomir Surić, )

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)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus