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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 09706naa a2202353 4500 | |
| 001 | oai:DiVA.org:lnu-30262 | |
| 003 | SwePub | |
| 008 | 131108s2009 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-302622 URI |
| 024 | 7 | a https://doi.org/10.1051/0004-6361/2009121282 DOI |
| 040 | a (SwePub)lnu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a for2 swepub-publicationtype |
| 100 | 1 | a Aharonian, F.4 aut |
| 245 | 1 0 | a Simultaneous multiwavelength observations of the second exceptional gamma-ray flare of PKS2155-304 in July 2006 |
| 264 | c 2009-06-15 | |
| 264 | 1 | b EDP Sciences,c 2009 |
| 338 | a print2 rdacarrier | |
| 520 | a Aims. The X-ray-TeV connection and the evolution of the emitting particle population is studied in high-energy peaked BL Lac objects, by obtaining spectral information in both bands on sub-hour timescales. Methods. Simultaneous observations with HESS, Chandra and the Bronberg optical observatory were performed on the BL Lac object PKS 2155-304 in the night of July 29-30 2006, when the source underwent a major gamma-ray outburst during its high-activity state of Summer 2006. This event took place about 44 h after the other major outburst of the night of July 27-28, which is known for its ultrafast variability. An unprecedented 6 to 8 h of simultaneous, uninterrupted coverage was achieved, with spectra and light curves measured down to 7 and 2 min timescales, respectively. Results. The source exhibited one major flare along the night, at high energies. The gamma-ray flux reached a maximum of similar to 11 times the Crab flux (>400 GeV), with rise/decay timescales of similar to 1 h, plus a few smaller-amplitude flares superimposed on the decaying phase. The emission in the X-ray and VHE gamma-ray bands is strongly correlated, with no evidence of lags. The spectra also evolve with similar patterns, and are always soft ( photon index G > 2), indicating no strong shift of the peaks in the spectral energy distribution towards higher energies. Only at the flare maximum is there evidence that the gamma-ray peak is inside the observed passband, at similar to 400-600 GeV. The VHE spectrum shows a curvature that is variable with time and stronger at higher fluxes. The huge VHE variations (similar to 22x) are only accompanied by small-amplitude X-ray and optical variations (factor 2 and 15% respectively). The source has shown for the first time in a high-energy peaked BL Lac object a large Compton dominance (L(C)/L(S) similar to 10) - rapidly evolving - and a cubic relation between VHE and X-ray flux variations, during a decaying phase. These results challenge the common scenarios for the TeV-blazar emission. | |
| 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 galaxies: active | |
| 653 | a galaxies: BL Lacertae objects: individual: PKS 2155-304 | |
| 653 | a gamma rays: observations | |
| 653 | a X-rays: galaxies | |
| 653 | a Astropartikelfysik | |
| 653 | a Astroparticle Physics | |
| 700 | 1 | a Akhperjanian, A. G.4 aut |
| 700 | 1 | a Anton, G.4 aut |
| 700 | 1 | a de Almeida, U. Barres4 aut |
| 700 | 1 | a Bazer-Bachi, A. R.4 aut |
| 700 | 1 | a Becherini, Yvonneu Univ Paris 07, CNRS, UMR 7164, CEA,Observ Paris, F-75205 Paris 13, France4 aut0 (Swepub:lnu)yvbeaa |
| 700 | 1 | a Behera, B.4 aut |
| 700 | 1 | a Benbow, W.4 aut |
| 700 | 1 | a Bernloehr, K.4 aut |
| 700 | 1 | a Boisson, C.4 aut |
| 700 | 1 | a Bochow, A.4 aut |
| 700 | 1 | a Borrel, V.4 aut |
| 700 | 1 | a Brion, E.4 aut |
| 700 | 1 | a Brucker, J.4 aut |
| 700 | 1 | a Brun, P.4 aut |
| 700 | 1 | a Buehler, R.4 aut |
| 700 | 1 | a Bulik, T.4 aut |
| 700 | 1 | a Buesching, I.4 aut |
| 700 | 1 | a Boutelier, T.4 aut |
| 700 | 1 | a Chadwick, P. M.4 aut |
| 700 | 1 | a Charbonnier, A.4 aut |
| 700 | 1 | a Chaves, R. C. G.4 aut |
| 700 | 1 | a Cheesebrough, A.4 aut |
| 700 | 1 | a Chounet, L. -M4 aut |
| 700 | 1 | a Clapson, A. C.4 aut |
| 700 | 1 | a Coignet, G.4 aut |
| 700 | 1 | a Costamante, L.4 aut |
| 700 | 1 | a Dalton, M.4 aut |
| 700 | 1 | a Daniel, M. K.4 aut |
| 700 | 1 | a Davids, I. D.4 aut |
| 700 | 1 | a Degrange, B.4 aut |
| 700 | 1 | a Deil, C.4 aut |
| 700 | 1 | a Dickinson, H. J.4 aut |
| 700 | 1 | a Djannati-Atai, A.4 aut |
| 700 | 1 | a Domainko, W.4 aut |
| 700 | 1 | a Drury, L. O 'C.4 aut |
| 700 | 1 | a Dubois, F.4 aut |
| 700 | 1 | a Dubus, G.4 aut |
| 700 | 1 | a Dyks, J.4 aut |
| 700 | 1 | a Dyrda, M.4 aut |
| 700 | 1 | a Egberts, K.4 aut |
| 700 | 1 | a Emmanoulopoulos, D.4 aut |
| 700 | 1 | a Espigat, P.4 aut |
| 700 | 1 | a Farnier, C.4 aut |
| 700 | 1 | a Feinstein, F.4 aut |
| 700 | 1 | a Fiasson, A.4 aut |
| 700 | 1 | a Foerster, A.4 aut |
| 700 | 1 | a Fontaine, G.4 aut |
| 700 | 1 | a Fuessling, M.4 aut |
| 700 | 1 | a Gabici, S.4 aut |
| 700 | 1 | a Gallant, Y. A.4 aut |
| 700 | 1 | a Gerard, L.4 aut |
| 700 | 1 | a Giebels, B.4 aut |
| 700 | 1 | a Glicenstein, J. F.4 aut |
| 700 | 1 | a Glueck, B.4 aut |
| 700 | 1 | a Goret, P.4 aut |
| 700 | 1 | a Goehring, D.4 aut |
| 700 | 1 | a Hauser, D.4 aut |
| 700 | 1 | a Hauser, M.4 aut |
| 700 | 1 | a Heinz, S.4 aut |
| 700 | 1 | a Heinzelmann, G.4 aut |
| 700 | 1 | a Henri, G.4 aut |
| 700 | 1 | a Hermann, G.4 aut |
| 700 | 1 | a Hinton, J. A.4 aut |
| 700 | 1 | a Hoffmann, A.4 aut |
| 700 | 1 | a Hofmann, W.4 aut |
| 700 | 1 | a Holleran, M.4 aut |
| 700 | 1 | a Hoppe, S.4 aut |
| 700 | 1 | a Horns, D.4 aut |
| 700 | 1 | a Jacholkowska, A.4 aut |
| 700 | 1 | a de Jager, O. C.4 aut |
| 700 | 1 | a Jahn, C.4 aut |
| 700 | 1 | a Jung, I.4 aut |
| 700 | 1 | a Katarzynski, K.4 aut |
| 700 | 1 | a Katz, U.4 aut |
| 700 | 1 | a Kaufmann, S.4 aut |
| 700 | 1 | a Kendziorra, E.4 aut |
| 700 | 1 | a Kerschhaggl, M.4 aut |
| 700 | 1 | a Khangulyan, D.4 aut |
| 700 | 1 | a Khelifi, B.4 aut |
| 700 | 1 | a Keogh, D.4 aut |
| 700 | 1 | a Kluzniak, W.4 aut |
| 700 | 1 | a Kneiske, T.4 aut |
| 700 | 1 | a Komin, Nu.4 aut |
| 700 | 1 | a Kosack, K.4 aut |
| 700 | 1 | a Lamanna, G.4 aut |
| 700 | 1 | a Lenain, J. -P4 aut |
| 700 | 1 | a Lohse, T.4 aut |
| 700 | 1 | a Marandon, V.4 aut |
| 700 | 1 | a Martin, J. M.4 aut |
| 700 | 1 | a Martineau-Huynh, O.4 aut |
| 700 | 1 | a Marcowith, A.4 aut |
| 700 | 1 | a Maurin, D.4 aut |
| 700 | 1 | a McComb, T. J. L.4 aut |
| 700 | 1 | a Medina, M. C.4 aut |
| 700 | 1 | a Moderski, R.4 aut |
| 700 | 1 | a Monard, L. A. G.4 aut |
| 700 | 1 | a Moulin, E.4 aut |
| 700 | 1 | a Naumann-Godo, M.4 aut |
| 700 | 1 | a de Naurois, M.4 aut |
| 700 | 1 | a Nedbal, D.4 aut |
| 700 | 1 | a Nekrassov, D.4 aut |
| 700 | 1 | a Niemiec, J.4 aut |
| 700 | 1 | a Nolan, S. J.4 aut |
| 700 | 1 | a Ohm, S.4 aut |
| 700 | 1 | a Olive, J. -F4 aut |
| 700 | 1 | a Wilhelmi, E. de Ona4 aut |
| 700 | 1 | a Orford, K. J.4 aut |
| 700 | 1 | a Ostrowski, M.4 aut |
| 700 | 1 | a Panter, M.4 aut |
| 700 | 1 | a Arribas, M. Paz4 aut |
| 700 | 1 | a Pedaletti, G.4 aut |
| 700 | 1 | a Pelletier, G.4 aut |
| 700 | 1 | a Petrucci, P-O4 aut |
| 700 | 1 | a Pita, S.4 aut |
| 700 | 1 | a Puehlhofer, G.4 aut |
| 700 | 1 | a Punch, M.u Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France4 aut0 (Swepub:lnu)mipuaa |
| 700 | 1 | a Quirrenbach, A.4 aut |
| 700 | 1 | a Raubenheimer, B. C.4 aut |
| 700 | 1 | a Raue, M.4 aut |
| 700 | 1 | a Rayner, S. M.4 aut |
| 700 | 1 | a Renaud, M.4 aut |
| 700 | 1 | a Rieger, F.4 aut |
| 700 | 1 | a Ripken, J.4 aut |
| 700 | 1 | a Rob, L.4 aut |
| 700 | 1 | a Rosier-Lees, S.4 aut |
| 700 | 1 | a Rowell, G.4 aut |
| 700 | 1 | a Rudak, B.4 aut |
| 700 | 1 | a Rulten, C. B.4 aut |
| 700 | 1 | a Ruppel, J.4 aut |
| 700 | 1 | a Sahakian, V.4 aut |
| 700 | 1 | a Santangelo, A.4 aut |
| 700 | 1 | a Schlickeiser, R.4 aut |
| 700 | 1 | a Schoeck, F. M.4 aut |
| 700 | 1 | a Schroeder, R.4 aut |
| 700 | 1 | a Schwanke, U.4 aut |
| 700 | 1 | a Schwarzburg, S.4 aut |
| 700 | 1 | a Schwemmer, S.4 aut |
| 700 | 1 | a Shalchi, A.4 aut |
| 700 | 1 | a Sikora, M.4 aut |
| 700 | 1 | a Skilton, J. L.4 aut |
| 700 | 1 | a Sol, H.4 aut |
| 700 | 1 | a Spangler, D.4 aut |
| 700 | 1 | a Stawarz, L.4 aut |
| 700 | 1 | a Steenkamp, R.4 aut |
| 700 | 1 | a Stegmann, C.4 aut |
| 700 | 1 | a Superina, G.4 aut |
| 700 | 1 | a Szostek, A.4 aut |
| 700 | 1 | a Tam, P. H.4 aut |
| 700 | 1 | a Tavernet, J. -P4 aut |
| 700 | 1 | a Terrier, R.4 aut |
| 700 | 1 | a Tibolla, O.4 aut |
| 700 | 1 | a Tluczykont, M.4 aut |
| 700 | 1 | a Van Eldik, C.4 aut |
| 700 | 1 | a Vasileiadis, G.4 aut |
| 700 | 1 | a Venter, C.4 aut |
| 700 | 1 | a Venter, L.4 aut |
| 700 | 1 | a Vialle, J. P.4 aut |
| 700 | 1 | a Vincent, P.4 aut |
| 700 | 1 | a Vivier, M.4 aut |
| 700 | 1 | a Voelk, H. J.4 aut |
| 700 | 1 | a Volpe, F.4 aut |
| 700 | 1 | a Wagner, S. J.4 aut |
| 700 | 1 | a Ward, M.4 aut |
| 700 | 1 | a Zdziarski, A. A.4 aut |
| 700 | 1 | a Zech, A.4 aut |
| 710 | 2 | a Univ Paris 07, CNRS, UMR 7164, CEA,Observ Paris, F-75205 Paris 13, Franceb Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France4 org |
| 773 | 0 | t Astronomy and Astrophysicsd : EDP Sciencesg 502:3, s. 749-770q 502:3<749-770x 0004-6361x 1432-0746 |
| 856 | 4 | u https://www.aanda.org/articles/aa/pdf/2009/30/aa12128-09.pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-30262 |
| 856 | 4 8 | u https://doi.org/10.1051/0004-6361/200912128 |
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