Sökning: WFRF:(Prada Moroni P. G.) > PG 1553+113 :
Fältnamn | Indikatorer | Metadata |
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000 | 07736naa a2202209 4500 | |
001 | oai:DiVA.org:su-76153 | |
003 | SwePub | |
008 | 120509s2012 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-761532 URI |
024 | 7 | a https://doi.org/10.1088/0004-637X/748/1/462 DOI |
040 | a (SwePub)su | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Aleksic, J.4 aut |
245 | 1 0 | a PG 1553+113 :b FIVE YEARS OF OBSERVATIONS WITH MAGIC |
264 | 1 | c 2012 |
338 | a print2 rdacarrier | |
500 | a 158 | |
520 | a We present the results of five years (2005-2009) of MAGIC observations of the BL Lac object PG 1553+113 at very high energies (VHEs; E > 100 GeV). Power-law fits of the individual years are compatible with a steady mean photon index Gamma = 4.27 +/- 0.14. In the last three years of data, the flux level above 150 GeV shows a clear variability (probability of constant flux < 0.001%). The flux variations are modest, lying in the range from 4% to 11% of the Crab Nebula flux. Simultaneous optical data also show only modest variability that seems to be correlated with VHE gamma-ray variability. We also performed a temporal analysis of (all available) simultaneous Fermi/Large Area Telescope data of PG 1553+113 above 1 GeV, which reveals hints of variability in the 2008-2009 sample. Finally, we present a combination of the mean spectrum measured at VHEs with archival data available for other wavelengths. The mean spectral energy distribution can be modeled with a one-zone synchrotron self-Compton model, which gives the main physical parameters governing the VHE emission in the blazar jet. | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a BL Lacertae objects: individual (PG 1553+113) | |
653 | a gamma rays: galaxies | |
653 | a radiation mechanisms: non-thermal | |
700 | 1 | a Alvarez, E. A.4 aut |
700 | 1 | a Antonelli, L. A.4 aut |
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700 | 1 | a Storz, J.4 aut |
700 | 1 | a Strah, N.4 aut |
700 | 1 | a Suric, T.4 aut |
700 | 1 | a Takalo, L.4 aut |
700 | 1 | a Takami, H.4 aut |
700 | 1 | a Tavecchio, F.4 aut |
700 | 1 | a Temnikov, P.4 aut |
700 | 1 | a Terzic, T.4 aut |
700 | 1 | a Tescaro, D.4 aut |
700 | 1 | a Teshima, M.4 aut |
700 | 1 | a Tibolla, O.4 aut |
700 | 1 | a Torres, D. F.4 aut |
700 | 1 | a Treves, A.4 aut |
700 | 1 | a Uellenbeck, M.4 aut |
700 | 1 | a Vankov, H.4 aut |
700 | 1 | a Vogler, P.4 aut |
700 | 1 | a Wagner, R. M.4 aut |
700 | 1 | a Weitzel, Q.4 aut |
700 | 1 | a Zabalza, V.4 aut |
700 | 1 | a Zandanel, F.4 aut |
700 | 1 | a Zanin, R.4 aut |
700 | 1 | a Buson, S.4 aut |
700 | 1 | a Horan, D.4 aut |
700 | 1 | a Larsson, Stefanu Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)slars |
700 | 1 | a D'Ammando, F.4 aut |
710 | 2 | a Stockholms universitetb Institutionen för astronomi4 org |
773 | 0 | t Astrophysical Journalg 748:1, s. 46-q 748:1<46-x 0004-637Xx 1538-4357 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-76153 |
856 | 4 8 | u https://doi.org/10.1088/0004-637X/748/1/46 |
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