Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

26 April 2024

» arxiv » 1309.6174

Article overview

Discovery of very high energy gamma-ray emission from the BL Lac object PKS 0301-243 with H.E.S.S
H.E.S.S. Collaboration ; A. Abramowski ; F. Acero ; F. Aharonian ; F. Ait ; A.G. Akhperjanian ; E. Angüner ; G. Anton ; S. Balenderan ; A. Balzer ; A. Barnacka ; Y. Becherini ; J. Becker ; K. Bernlöhr ; E. Birsin ; E. Bissaldi ; J. Biteau ; M. Böttcher ; C. Boisson ; J. Bolmont ; P. Bordas ; J. Brucker ; F. Brun ; P. Brun ; T. Bulik ; S. Carrigan ; S. Casanova ; M. Cerruti ; P.M. Chadwick ; R. Chalme-Calvet ; R.C.G. Chaves ; A. Cheesebrough ; M. Chrétien ; S. Colafrancesco ; G. Cologna ; J. Conrad ; C. Couturier ; M. Dalton ; M.K. Daniel ; I.D. Davids ; B. Degrange ; C. Deil ; P. deWilt ; H.J. Dickinson ; A. Djannati-Ataï ; W. Domainko ; L.O'C. Drury ; G. Dubus ; K. Dutson ; J. Dyks ; M. Dyrda ; T. Edwards ; K. Egberts ; P. Eger ; P. Espigat ; C. Farnier ; S. Fegan ; F. Feinstein ; M.V. Fernandes ; D. Fernandez ; A. Fiasson ; G. Fontaine ; A. Förster ; M. Füssling ; M. Gajdus ; Y.A. Gallant ; T. Garrigoux ; B. Giebels ; J.F. Glicenstein ; M.-H. Grondin ; M. Grudzìnska ; S. Häffner ; J.D. Hague ; J. Hahn ; J. Harris ; G. Heinzelmann ; G. Henri ; G. Hermann ; O. Hervet ; A. Hillert ; J.A. Hinton ; W. Hofmann ; P. Hofverberg ; M. Holler ; D. Horns ; A. Jacholkowska ; C. Jahn ; M. Jamrozy ; M. Janiak ; F. Jankowsky ; I. Jung ; M.A. Kastendieck ; K. Katarzyński ; U. Katz ; S. Kaufmann ; B. Khélifi ; M. Kieffer ; S. Klepser ; D. Klochkov ; W. Kluźniak ; T. Kneiske ; D. Kolitzus ; Nu. Komin ; K. Kosack ; S. Krakau ; F. Krayzel ; P.P. Krüger ; H. Laffon ; G. Lamanna ; J. Lefaucheur ; M. Lemoine-Goumard ; J.-P. Lenain ; D. Lennarz ; T. Lohse ; A. Lopatin ; C.-C. Lu ; V. Marandon ; A. Marcowith ; R. Marx ; G. Maurin ; N. Maxted ; M. Mayer ; T.J.L. McComb ; M.C. Medina ; J. Méhault ; U. Menzler ; M. Meyer ; R. Moderski ; M. Mohamed ; E. Moulin ; T. Murach ; C.L. Naumann ; M. de Naurois ; D. Nedbal ; J. Niemiec ; S.J. Nolan ; L. Oakes ; S. Ohm ; E. de Oña Wilhelmi ; B. Opitz ; M. Ostrowski ; I. Oya ; M. Panter ; R.D. Parsons ; M. Paz Arribas ; N.W. Pekeur ; G. Pelletier ; J. Perez ; P.-O. Petrucci ; B. Peyaud ; S. Pita ; H. Poon ; G. Pühlhofer ; M. Punch ; A. Quirrenbach ; S. Raab ; M. Raue ; A. Reimer ; O. Reimer ; M. Renaud ; R. de los Reyes ; F. Rieger ; L. Rob ; S. Rosier-Lees ; G. Rowell ; B. Rudak ; C.B. Rulten ; V. Sahakian ; D.A. Sanchez ; A. Santangelo ; R. Schlickeiser ; F. Schüssler ; A. Schulz ; U. Schwanke ; S. Schwarzburg ; S. Schwemmer ; H. Sol ; G. Spengler ; F. Spies ; L. Stawarz ; R. Steenkamp ; C. Stegmann ; F. Stinzing ; K. Stycz ; I. Sushch ; A. Szostek ; J.-P. Tavernet ; R. Terrier ; M. Tluczykont ; C. Trichard ; K. Valerius ; C. van Eldik ; G. Vasileiadis ; C. Venter ; A. Viana ; P. Vincent ; H.J. Völk ; F. Volpe ; M. Vorster ; S.J. Wagner ; P. Wagner ; M. Ward ; M. Weidinger ; Q. Weitzel ; R. White ; A. Wierzcholska ; P. Willmann ; A. Wörnlein ; D. Wouters ; M. Zacharias ; A. Zajczyk ; A.A. Zdziarski ; A. Zech ; H.-S. Zechlin ;
Date:	24 Sep 2013
Abstract:	The active galactic nucleus PKS 0301-243 (z=0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV < E < 100 GeV) by Fermi/LAT. This paper reports on the discovery of PKS 0301-243 at very high energies (E>100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 hours. Gamma rays above 200 GeV are detected at a significance of 9.4{sigma}. A hint of variability at the 2.5{sigma} level is found. An integral flux I(E > 200 GeV) = (3.3 +/- 1.1_stat +/- 0.7_syst)e-12 ph cm^-2s^-1 and a photon index {Gamma} = 4.6 +/- 0.7_stat +/- 0.2_syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources observed at TeV energies, the very high energy emission from PKS 0301-243 is attenuated by the extragalactic background light (EBL) and the measured spectrum is used to derive an upper limit on the opacity of the EBL.
Source:	arXiv, 1309.6174
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap