Pregled bibliografske jedinice broj: 619223
Very high energy gamma-radiation from the radio quasar 4C 21.35
Very high energy gamma-radiation from the radio quasar 4C 21.35 // Proceedings of the International Astronomical Union / Tuffs, Richard J. ; Popescu, Cristina C. (ur.).
Cambridge: Cambridge University Press, 2012. str. 414-416 (poster, nije recenziran, cjeloviti rad (in extenso), znanstveni)
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Naslov
Very high energy gamma-radiation from the radio quasar 4C 21.35
Autori
Becerra González, Josefa ; Maraschi, Laura ; Mazin, Daniel ; Prandini, Elisa ; Saito, Koji ; Sitarek, Julian ; Stamerra, Antonio ; Tavecchio, Fabrizio ; Terzić, Tomislav ; Treves, Aldo
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the International Astronomical Union
/ Tuffs, Richard J. ; Popescu, Cristina C. - Cambridge : Cambridge University Press, 2012, 414-416
ISBN
9781107019843
Skup
IAU Symposium S284: The Spectral Energy Distribution of Galaxies
Mjesto i datum
Preston, Ujedinjeno Kraljevstvo, 05.09.2011. - 09.09.2011
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
4C 21.35; PKS 1222+216; MAGIC; gamma-rays
Sažetak
A very high energy (VHE) γ-radiation was detected from a flat spectrum radio quasar (FSRQ) 4C 21.35 (PKS1222+21) by MAGIC (Major Atmospheric Gamma Imaging Cherenkov) telescopes on June 17 th 2010. 4C 21.35 is only the 3rd FSRQ detected in VHE γ-rays. With its hard spectrum (Γ = 2.72±0.34) with no apparent cut-off at energies below 130 GeV and an extremely fast variation of flux (doubling in 8.6+1.1−0.9 minutes), this detection poses a challenge to existing models of VHE γ-radiation from FSRQs. The most important results of observations performed by MAGIC telescopes are presented here, as well as some possible explanations of those results.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
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Časopis indeksira:
- Scopus
