Sökning: WFRF:(Latham T.) > Discovery of very h...
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000 | 08660naa a2202317 4500 | |
001 | oai:DiVA.org:lnu-30268 | |
003 | SwePub | |
008 | 131108s2009 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-302682 URI |
024 | 7 | a https://doi.org/10.1088/0004-637X/695/1/L402 DOI |
040 | a (SwePub)lnu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Aharonian, F.4 aut |
245 | 1 0 | a Discovery of very high energy γ-ray emission from centaurus a with H.E.S.S. |
264 | 1 | b Institute of Physics (IOP),c 2009 |
338 | a print2 rdacarrier | |
520 | a We report the discovery of faint very high energy (VHE; E > 100 GeV) gamma-ray emission from the radio galaxy Centaurus A in observations performed with the High Energy Stereoscopic System (H.E.S.S.) experiment, an imaging atmospheric Cherenkov telescope array consisting of four telescopes located in Namibia. Centaurus A has been observed for more than 120 hr. A signal with a statistical significance of 5.0 sigma is detected from the region including the radio core and the inner kpc jets. The integral flux above an energy threshold of similar to 250 GeV is measured to be 0.8% of the flux of the Crab Nebula (apparent luminosity: L(> 250 GeV) approximate to 2.6 x 1039 erg s(-1), adopting a distance of 3.8 Mpc). The spectrum can be described by a power law with a photon index of 2.7 +/- 0.5(stat) +/- 0.2(sys). No significant flux variability is detected in the data set. However, the low flux only allows detection of variability on the timescale of days to flux increments above a factor of similar to 15-20 (3 sigma and 4 sigma, respectively). The discovery of VHE gamma-ray emission from Centaurus A reveals particle acceleration in the source to > TeV energies and, together with M 87, establishes radio galaxies as a class of VHE emitters. | |
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: individual (Cen A) | |
653 | a gamma rays: observations | |
653 | a Astroparticle Physics | |
653 | a Astropartikelfysik | |
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 Universite Paris 7 Denis Diderot4 aut0 (Swepub:lnu)yvbeaa |
700 | 1 | a Behera, B.4 aut |
700 | 1 | a Benbow, W.4 aut |
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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 |
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700 | 1 | a Sikora, M.4 aut |
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700 | 1 | a Vincent, P.4 aut |
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700 | 1 | a Vivier, M.4 aut |
700 | 1 | a Voelk, H. J.4 aut |
700 | 1 | a Volpe, F.4 aut |
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710 | 2 | a Universite Paris 7 Denis Diderotb 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 Astrophysical Journal Lettersd : Institute of Physics (IOP)g 695:1, s. L40-L44q 695:1<L40-L44x 2041-8205 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-30268 |
856 | 4 8 | u https://doi.org/10.1088/0004-637X/695/1/L40 |
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