S
S. Ranchon
Researcher at Laboratoire d'Annecy-le-Vieux de physique des particules
Publications - 21
Citations - 3339
S. Ranchon is an academic researcher from Laboratoire d'Annecy-le-Vieux de physique des particules. The author has contributed to research in topics: High Energy Stereoscopic System & Crab Nebula. The author has an hindex of 20, co-authored 21 publications receiving 3154 citations.
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Journal ArticleDOI
An Exceptional Very High Energy Gamma-Ray Flare of PKS 2155-304
Felix Aharonian,A. G. Akhperjanian,A. R. Bazer-Bachi,M. Beilicke,Wystan Benbow,David Berge,Konrad Bernlöhr,Catherine Boisson,O. Bolz,V. Borrel,Ilana M. Braun,E. Brion,A. M. Brown,Rolf Bühler,I. Büsching,Timothé Boutelier,Svenja Carrigan,P. M. Chadwick,L.-M. Chounet,G. Coignet,R. Cornils,Luigi Costamante,B. Degrange,Hugh Dickinson,A. Djannati-Ataï,L. O'Connor-Drury,Guillaume Dubus,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,C. Farnier,F. Feinstein,E. Ferrero,A. Fiasson,G. Fontaine,Seb. Funk,M. Fuling,Y. A. Gallant,B. Giebels,J.F. Glicenstein,B. Glück,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,G. Heinzelmann,Gilles Henri,German Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,Eckhard Kendziorra,M. Kerschhaggl,B. Khélifi,Nu. Komin,K. Kosack,G. Lamanna,I. J. Latham,R. Le Gallou,Anne Lemiere,M. Lemoine-Goumard,Thomas Lohse,Jean Michel Martin,Olivier Martineau-Huynh,A. Marcowith,Conor Masterson,Gilles Maurin,T. J. L. McComb,Emmanuel Moulin,M. de Naurois,D. Nedbal,S. J. Nolan,A. Noutsos,J.-P. Olive,K. J. Orford,J. L. Osborne,M. Panter,Guy Pelletier,P.-O. Petrucci,S. Pita,G. Pühlhofer,Michael Punch,S. Ranchon,B. C. Raubenheimer,M. Raue,S. M. Rayner,A. Reimer,Olaf Reimer,J. Ripken,L. Rob,L. Rolland,S. Rosier-Lees,Gavin Rowell,V. Sahakian,Andrea Santangelo,L. Saugé,S. Schlenker,Reinhard Schlickeiser,R. Schröder,U. Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,Helene Sol,D. Spangler,Felix Spanier,R. Steenkamp,C. Stegmann,G. Superina,P. H. Tam,J. P. Tavernet,Regis Terrier,M. Tluczykont,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,P. Vincent,Heinrich J. Völk,Stefan Wagner,Martin Ward +125 more
TL;DR: In this paper, the average flux observed during an extreme gamma-ray outburst is I(>200 GeV) = (1.72$\pm$$0.05_{\rm stat}
Journal ArticleDOI
Fast variability of tera-electron volt gamma rays from the radio galaxy M87.
Felix Aharonian,A. G. Akhperjanian,A. R. Bazer-Bachi,M. Beilicke,Wystan Benbow,David Berge,Konrad Bernlöhr,Konrad Bernlöhr,Catherine Boisson,O. Bolz,V. Borrel,Ilana M. Braun,A. M. Brown,Rolf Bühler,I. Büsching,Svenja Carrigan,P. M. Chadwick,L.-M. Chounet,G. Coignet,R. Cornils,Luigi Costamante,Luigi Costamante,B. Degrange,Hugh Dickinson,A. Djannati-Ataï,L. O'c. Drury,Guillaume Dubus,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,F. Feinstein,E. Ferrero,A. Fiasson,G. Fontaine,Seb. Funk,Stefan Funk,M. Füßling,Y. A. Gallant,B. Giebels,J. F. Glicenstein,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,G. Heinzelmann,Gilles Henri,G. Hermann,Jim Hinton,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,Eckhard Kendziorra,M. Kerschhaggl,B. Khélifi,B. Khélifi,Nu. Komin,A. Konopelko,Karl Kosack,G. Lamanna,I. J. Latham,R. Le Gallou,A. Lemiere,M. Lemoine-Goumard,J.-P. Lenain,Thomas Lohse,Jean Michel Martin,O. Martineau-Huynh,A. Marcowith,Conor Masterson,Conor Masterson,Guillaume Maurin,T. J. L. McComb,E. Moulin,M. de Naurois,D. Nedbal,S. J. Nolan,A. Noutsos,K. J. Orford,J. L. Osborne,M. Ouchrif,M. Panter,Guy Pelletier,S. Pita,Gerd Pühlhofer,Michael Punch,S. Ranchon,B. C. Raubenheimer,Martin Raue,S. M. Rayner,A. Reimer,J. Ripken,L. Rob,L. Rolland,S. Rosier-Lees,Gavin Rowell,V. Sahakian,Andrea Santangelo,L. Saugé,S. Schlenker,Reinhard Schlickeiser,R. Schröder,Ullrich Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,Helene Sol,D. Spangler,Felix Spanier,R. Steenkamp,C. Stegmann,G. Superina,P. H. Tam,J.-P. Tavernet,Regis Terrier,M. Tluczykont,M. Tluczykont,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,P. Vincent,Heinrich J. Völk,Stefan Wagner,Martin Ward +128 more
TL;DR: The detection of fast variations of the TeV (10^12 eV) gamma-ray flux, on time-scales of days, from the nearby radio galaxy M 87 is reported in this article.
Journal ArticleDOI
Primary particle acceleration above 100 TeV in the shell-type supernova remnant RX J1713.7-3946 with deep HESS observations
Felix Aharonian,A. G. Akhperjanian,A. R. Bazer-Bachi,M. Beilicke,Wystan Benbow,David Berge,Konrad Bernlöhr,Catherine Boisson,O. Bolz,V. Borrel,Ilana M. Braun,E. Brion,A. M. Brown,Rolf Bühler,I. Büsching,Svenja Carrigan,P. M. Chadwick,L.-M. Chounet,G. Coignet,R. Cornils,Luigi Costamante,B. Degrange,Hugh Dickinson,A. Djannati-Ataï,L. O'c. Drury,Guillaume Dubus,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,F. Feinstein,E. Ferrero,A. Fiasson,G. Fontaine,Seb. Funk,Stefan Funk,M. F¨ußling,Y. A. Gallant,B. Giebels,J.F. Glicenstein,B. Glück,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,G. Heinzelmann,Gilles Henri,German Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,Eckhard Kendziorra,M. Kerschhaggl,B. Khélifi,Nu. Komin,A. Konopelko,K. Kosack,G. Lamanna,I. J. Latham,R. Le Gallou,Anne Lemiere,M. Lemoine-Goumard,Thomas Lohse,Jean Michel Martin,Olivier Martineau-Huynh,A. Marcowith,Conor Masterson,Gilles Maurin,T. J. L. McComb,Emmanuel Moulin,M. de Naurois,D. Nedbal,S. J. Nolan,A. Noutsos,J.-P. Olive,K. J. Orford,J. L. Osborne,M. Panter,G. Pelletier,S. Pita,G. Pühlhofer,Michael Punch,S. Ranchon,B. C. Raubenheimer,M. Raue,S. M. Rayner,A. Reimer,Olaf Reimer,J. Ripken,L. Rob,L. Rolland,S. Rosier-Lees,Gavin Rowell,V. Sahakian,Andrea Santangelo,L. Saugé,S. Schlenker,Reinhard Schlickeiser,R. Schröder,U. Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,Helene Sol,D. Spangler,Felix Spanier,R. Steenkamp,C. Stegmann,G. Superina,P. H. Tam,J. P. Tavernet,Regis Terrier,M. Tluczykont,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,P. Vincent,Heinrich J. Völk,Stefan Wagner,Martin Ward +124 more
TL;DR: The combined gamma-ray image of the 2004 and 2005 data reveals the morphology of RX J1713.7-3946 with unprecedented precision, as well as significantly increased statistics and energy coverage as compared to earlier 2003 & 2004 results.
Journal ArticleDOI
Discovery of very high energy gamma-ray emission coincident with molecular clouds in the W 28 (G6.4-0.1) field
Felix Aharonian,A. G. Akhperjanian,A. R. Bazer-Bachi,B. Behera,M. Beilicke,Wystan Benbow,David Berge,Konrad Bernlöhr,Catherine Boisson,O. Bolz,V. Borrel,Ilana M. Braun,E. Brion,A. M. Brown,Rolf Bühler,Tomasz Bulik,I. Büsching,Timothé Boutelier,Svenja Carrigan,P.M. Chadwic,L.-M. Chounet,A. C. Clapson,G. Coignet,R. Cornils,Luigi Costamante,B. Degrange,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,L. O'c. Drury,Guillaume Dubus,J. Dyks,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,C. Farnier,F. Feinstein,A. Fiasson,A. F¨orster,G. Fontaine,Yasuo Fukui,Seb. Funk,Stefan Funk,M. Füßling,Y. A. Gallant,B. Giebels,J.F. Glicenstein,B. Glück,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,G. Heinzelmann,Gilles Henri,German Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,Eckhard Kendziorra,M. Kerschhagg,B. Khélifi,Nu. Komin,K. Kosack,G. Lamanna,I. J. Latham,R. Le Gallou,Anne Lemiere,M. Lemoine-Goumard,J.-P. Lenain,Thomas Lohse,Jean Michel Martin,Olivier Martineau-Huynh,A. Marcowith,Conor Masterson,Gilles Maurin,T. J. L. McComb,Rafał Moderski,Yoshiaki Moriguchi,Emmanuel Moulin,M. de Naurois,D. Nedbal,S. J. Nolan,J.-P. Olive,K. J. Orford,J. L. Osborne,Michał Ostrowski,M. Panter,G. Pedaletti,G. Pelletier,P.-O. Petrucci,S. Pita,G. P¨uhlhofer,Michael Punch,S. Ranchon,B. C. Raubenheimer,M. Raue,S. M. Rayner,Olaf Reimer,Matthieu Renaud,J. Ripken,L. Rob,L. Rolland,S. Rosier-Lees,Gavin Rowell,B. Rudak,J. Ruppel,V. Sahakian,Andrea Santangelo,L. Saugé,S. Schlenker,Reinhard Schlickeiser,R. Schröder,U. Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,Helene Sol,D. Spangler,Stawarz,R. Steenkamp,C. Stegmann,G. Superina,Tsutomu T. Takeuchi,P. H. Tam,J. P. Tavernet,Regis Terrier,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,P. Vincent,M. Vivier,Heinrich J. Völk,Francesca Volpe,Stefan Wagner,Martin Ward +140 more
TL;DR: The W28 field was observed at Very High Energy (VHE) gamma-ray energies (E>0.1 TeV) with the H.E.S. Cherenkov telescopes to indicate a hadronic origin for HESSJ1801-233 and HessJ1800-240, and several cloud components in projection may contribute to the VHE emission.
Journal ArticleDOI
New constraints on the mid-IR EBL from the HESS discovery of VHE gamma-rays from 1ES 0229+200
Felix Aharonian,A. G. Akhperjanian,U. Barres de Almeida,A. R. Bazer-Bachi,B. Behera,M. Beilicke,Wystan Benbow,Konrad Bernlöhr,C. Boisson,O. Bolz,V. Borrel,Ilana M. Braun,E. Brion,A. M. Brown,Rolf Bühler,T. Bulik,I. Büsching,Timothé Boutelier,Svenja Carrigan,P. M. Chadwick,L.-M. Chounet,A. C. Clapson,G. Coignet,R. Cornils,Luigi Costamante,M. Dalton,B. Degrange,Hugh Dickinson,A. Djannati-Ataï,W. Domainko,L. O'c. Drury,F. Dubois,Guillaume Dubus,J. Dyks,Kathrin Egberts,Dimitrios Emmanoulopoulos,P. Espigat,C. Farnier,F. Feinstein,A. Fiasson,A. Förster,Gerard Fontaine,Seb. Funk,M. Füßling,Y. A. Gallant,B. Giebels,J. F. Glicenstein,B. Glück,P. Goret,C. Hadjichristidis,D. Hauser,M. Hauser,G. Heinzelmann,Gilles Henri,G. Hermann,Jim Hinton,A. Hoffmann,Werner Hofmann,M. Holleran,S. Hoppe,Dieter Horns,A. Jacholkowska,O. C. de Jager,I. Jung,K. Katarzyński,Eckhard Kendziorra,M. Kerschhaggl,B. Khélifi,D. Keogh,Nu. Komin,Karl Kosack,G. Lamanna,I. J. Latham,Anne Lemiere,M. Lemoine-Goumard,J.-P. Lenain,Thomas Lohse,Jean Michel Martin,Olivier Martineau-Huynh,A. Marcowith,Conor Masterson,David Maurin,Gilles Maurin,T. J. L. McComb,Rafal Moderski,Emmanuel Moulin,M. de Naurois,D. Nedbal,S. J. Nolan,Stefan Ohm,J.-P. Olive,E. de Oña Wilhelmi,K. J. Orford,J. L. Osborne,Michał Ostrowski,M. Panter,G. Pedaletti,G. Pelletier,P.-O. Petrucci,S. Pita,Gerd Pühlhofer,Michael Punch,S. Ranchon,B. C. Raubenheimer,Martin Raue,S. M. Rayner,Matthieu Renaud,J. Ripken,L. Rob,L. Rolland,S. Rosier-Lees,Gavin Rowell,B. Rudak,J. Ruppel,V. Sahakian,Andrea Santangelo,Reinhard Schlickeiser,F. Schock,R. Schröder,Ullrich Schwanke,S. Schwarzburg,S. Schwemmer,A. Shalchi,Helene Sol,D. Spangler,L. Stawarz,R. Steenkamp,C. Stegmann,G. Superina,P. H. Tam,J.-P. Tavernet,Regis Terrier,C. van Eldik,G. Vasileiadis,Christo Venter,J. P. Vialle,Pascal Vincent,M. Vivier,Heinrich J. Völk,Francesca Volpe,Stefan Wagner,Martin Ward,A. A. Zdziarski,A. Zech +143 more
TL;DR: In this paper, a very high energy (VHE: >100 GeV) γ-ray emission from the high-frequency peaked BL Lac 1ES 0229+200 was detected at the 6.6σ level in the HESS observations (41.8 h live time).