Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.

Acero, F.; Aharonian, F.; Akhperjanian, Ag G.; Anton, G.; Barres De Almeida, U.; Bazer-Bachi, Ar R.; Becherini, Y.; Behera, B.; Bernlöhr, K.; De Oña Wilhelmi, E.; Bochow, A.; Boisson, C.; Bolmont, J.; Borrel, V.; Brucker, J.; Brun, F.; Brun, P.; Bühler, R.; Bulik, T.; Büsching, I.; Boutelier, T.; Chadwick, Pm M.; Charbonnier, A.; Chaves, Rcg C. G.; Cheesebrough, A.; Chounet, L.-M.; Clapson, Ac C.; Fegan, S.; Coignet, G.; Dalton, M.; Daniel, Mk K.; Davids, Id D.; Degrange, B.; Deil, C.; Dickinson, Hj J.; Füsling, M.; Djannati-Ataï, A.; Domainko, W.; Drury, Lo O.-'.-C; Dubois, F.; Foerster, A.; G'Erard, L.; Dubus, G.; Dyks, J.; Dyrda, M.; Egberts, K.; Fussling, M.; Emmanoulopoulos, D.; Espigat, P.; Farnier, C.; Feinstein, F.; Oc, De Jager; Fiasson, A.; Förster, A.; Fontaine, G.; Füßling, M.; Gabici, S.; Gallant, Ya A.; Gérard, L.; Gerard, L.; Gerbig, D.; Giebels, B.; Glicenstein, Jf F.; Glück, B.; Goret, P.; Göring, D.; Hauser, D.; Hauser, M.; Goring, D.; Heinz, S.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, Ja A.; Hoffmann, A.; Hofmann, W.; Holleran, Mathew; Hoppe, S.; Horns, D.; Jacholkowska, A.; de Jager, O. C.; Hofverberg, P.; Jahn, C.; Jung, I.; Katarzy'Nski, K.; Katarzyński, K.; Katz, U.; Kaufmann, S.; Kendziorra, E.; Kerschhaggl, M.; De Jager, Ocker C.; Khangulyan, D.; Khélifi, B.; Keogh, D.; Kluźniak, W.; Kneiske, T.; Komin, N.-U.; Kosack, K.; Kossakowski, R.; Lamanna, G.; Lenain, J.-P.; Klu'Zniak, W.; Lohse, T.; Marandon, V.; Martin, Jm M.; Martineau-Huynh, O.; Marcowith, A.; Masbou, J.; Maurin, D.; McComb, Tjl J. L.; Medina, Mc C.; Moderski, R.; Moulin, E.; Naumann-Godo, M.; de Naurois, M.; Nedbal, D.; Nekrassov, D.; Nicholas, B.; Niemiec, J.; Nolan, Sj J.; Ohm, S.; Olive, J.-F.; de Ona Wilhelmi, E.; Klochkov, D.; Orford, Kj J.; Ostrowski, M.; Panter, M.; Paz Arribas, M.; Pedaletti, G.; Busching, I.; Pelletier, G.; Petrucci, P.-O.; Pita, S.; Pühlhofer, G.; Punch, M.; Quirrenbach, A.; Raubenheimer, Bc C.; Raue, M.; Rayner, Sm M.; Reimer, O.; Renaud, M.; Rieger, F.; Ripken, J.; Mehault, J.; Rob, L.; Rosier-Lees, S.; Rowell, G.; Rudak, B.; Rulten, Cb B.; Ruppel, J.; Sahakian, V.; Santangelo, A.; Schlickeiser, R.; Schöck, Fm M.; Schröder, R.; Schwanke, U.; Puhlhofer, G.; Schwarzburg, S.; Schwemmer, S.; Shalchi, A.; Sikora, M.; Stawarz, Ł.; Skilton, Jl L.; Sol, H.; Spangler, D.; Steenkamp, R.; Stegmann, C.; Stinzing, F.; Superina, G.; Szostek, A.; Sch¨ock, F. M.; Tam, Ph H.; Tavernet, J.-P.; Terrier, R.; Tibolla, O.; Tluczykont, M.; van Eldik, C.; Stawarz, L.; Vasileiadis, G.; Venter, Christo; Venter, L.; Vialle, Jp P.; Schock, F. M.; Vincent, P.; Vivier, M.; Völk, Hj J.; Volpe, F.; Wagner, Sj J.; Ward, M.; Zdziarski, Aa A.; Collaboration, H. E. S. S.; Zech, A.; :.,

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Ulisses Barres de Almeida
Acero et al., 2009

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Hans Publishers, Astronomy & Astrophysics, 2(508), p. 561-564

DOI: 10.1051/0004-6361/200913323

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@article{Acero2009,
  abstract = {The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron fraction up to 100 GeV - motivated many interpretations in terms of dark matter scenarios; alternative explanations assume a nearby electron source like a pulsar or supernova remnant. Here we present a measurement of the cosmic-ray electron spectrum with H.E.S.S. starting at 340 GeV. While the overall electron flux measured by H.E.S.S. is consistent with the ATIC data within statistical and systematic errors, the H.E.S.S. data exclude a pronounced peak in the electron spectrum as suggested for interpretation by ATIC. The H.E.S.S. data follow a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) +- 0.3 (syst.), which steepens at about 1 TeV. ; Comment: 4 pages, 3 figures, Fermi data included, explanation added},
  author = {Acero, F. and Aharonian, F. and Akhperjanian, Ag G. and Anton, G. and Barres De Almeida, U. and Bazer-Bachi, Ar R. and Becherini, Y. and Behera, B. and Bernlöhr, K. and De Oña Wilhelmi, E. and Bochow, A. and Boisson, C. and Bolmont, J. and Borrel, V. and Brucker, J. and Brun, F. and Brun, P. and Bühler, R. and Bulik, T. and Büsching, I. and Boutelier, T. and Chadwick, Pm M. and Charbonnier, A. and Chaves, Rcg C. G. and Cheesebrough, A. and Chounet, L.-M. and Clapson, Ac C. and Fegan, S. and Coignet, G. and Dalton, M. and Daniel, Mk K. and Davids, Id D. and Degrange, B. and Deil, C. and Dickinson, Hj J. and Füsling, M. and Djannati-Ataï, A. and Domainko, W. and Drury, Lo O.-'.-C and Dubois, F. and Foerster, A. and G'Erard, L. and Dubus, G. and Dyks, J. and Dyrda, M. and Egberts, K. and Fussling, M. and Emmanoulopoulos, D. and Espigat, P. and Farnier, C. and Feinstein, F. and Oc, De Jager and Fiasson, A. and Förster, A. and Fontaine, G. and Füßling, M. and Gabici, S. and Gallant, Ya A. and Gérard, L. and Gerard, L. and Gerbig, D. and Giebels, B. and Glicenstein, Jf F. and Glück, B. and Goret, P. and Göring, D. and Hauser, D. and Hauser, M. and Goring, D. and Heinz, S. and Heinzelmann, G. and Henri, G. and Hermann, G. and Hinton, Ja A. and Hoffmann, A. and Hofmann, W. and Holleran, Mathew and Hoppe, S. and Horns, D. and Jacholkowska, A. and de Jager, O. C. and Hofverberg, P. and Jahn, C. and Jung, I. and Katarzy'Nski, K. and Katarzyński, K. and Katz, U. and Kaufmann, S. and Kendziorra, E. and Kerschhaggl, M. and De Jager, Ocker C. and Khangulyan, D. and Khélifi, B. and Keogh, D. and Kluźniak, W. and Kneiske, T. and Komin, N.-U. and Kosack, K. and Kossakowski, R. and Lamanna, G. and Lenain, J.-P. and Klu'Zniak, W. and Lohse, T. and Marandon, V. and Martin, Jm M. and Martineau-Huynh, O. and Marcowith, A. and Masbou, J. and Maurin, D. and McComb, Tjl J. L. and Medina, Mc C. and Moderski, R. and Moulin, E. and Naumann-Godo, M. and de Naurois, M. and Nedbal, D. and Nekrassov, D. and Nicholas, B. and Niemiec, J. and Nolan, Sj J. and Ohm, S. and Olive, J.-F. and de Ona Wilhelmi, E. and Klochkov, D. and Orford, Kj J. and Ostrowski, M. and Panter, M. and Paz Arribas, M. and Pedaletti, G. and Busching, I. and Pelletier, G. and Petrucci, P.-O. and Pita, S. and Pühlhofer, G. and Punch, M. and Quirrenbach, A. and Raubenheimer, Bc C. and Raue, M. and Rayner, Sm M. and Reimer, O. and Renaud, M. and Rieger, F. and Ripken, J. and Mehault, J. and Rob, L. and Rosier-Lees, S. and Rowell, G. and Rudak, B. and Rulten, Cb B. and Ruppel, J. and Sahakian, V. and Santangelo, A. and Schlickeiser, R. and Schöck, Fm M. and Schröder, R. and Schwanke, U. and Puhlhofer, G. and Schwarzburg, S. and Schwemmer, S. and Shalchi, A. and Sikora, M. and Stawarz, Ł. and Skilton, Jl L. and Sol, H. and Spangler, D. and Steenkamp, R. and Stegmann, C. and Stinzing, F. and Superina, G. and Szostek, A. and Sch¨ock, F. M. and Tam, Ph H. and Tavernet, J.-P. and Terrier, R. and Tibolla, O. and Tluczykont, M. and van Eldik, C. and Stawarz, L. and Vasileiadis, G. and Venter, Christo and Venter, L. and Vialle, Jp P. and Schock, F. M. and Vincent, P. and Vivier, M. and Völk, Hj J. and Volpe, F. and Wagner, Sj J. and Ward, M. and Zdziarski, Aa A. and Collaboration, H. E. S. S. and Zech, A. and :., },
  doi = {10.1051/0004-6361/200913323},
  journal = {Astronomy & Astrophysics},
  month = {oct},
  pages = {561-564},
  title = {Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.},
  url = {https://www.aanda.org/articles/aa/pdf/2009/47/aa13323-09.pdf},
  volume = {508},
  year = {2009}
}

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Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.

Journal article published in 2009 by F. Acero, F. Aharonian, Ag G. Akhperjanian, G. Anton, U. Barres De Almeida

, Ar R. Bazer-Bachi, Y. Becherini, B. Behera, K. Bernlöhr, E. De Oña Wilhelmi, A. Bochow, C. Boisson, J. Bolmont, V. Borrel, J. Brucker and other authors. F. Acero, F. Aharonian, Ag G. Akhperjanian, G. Anton, U. Barres De Almeida

, Ar R. Bazer-Bachi, Y. Becherini, B. Behera, K. Bernlöhr, E. De Oña Wilhelmi, A. Bochow, C. Boisson, J. Bolmont, V. Borrel, J. Brucker, F. Brun, P. Brun, R. Bühler, T. Bulik

, I. Büsching, T. Boutelier, Pm M. Chadwick, A. Charbonnier, Rcg C. G. Chaves, A. Cheesebrough, L.-M. Chounet, Ac C. Clapson, S. Fegan, G. Coignet, M. Dalton, Mk K. Daniel, Id D. Davids, B. Degrange, C. Deil, Hj J. Dickinson, M. Füsling, A. Djannati-Ataï, W. Domainko, Lo O.-'.-C Drury, F. Dubois, A. Foerster, L. G'Erard, G. Dubus

, J. Dyks, M. Dyrda, K. Egberts, M. Fussling, D. Emmanoulopoulos, P. Espigat, C. Farnier, F. Feinstein, De Jager Oc, A. Fiasson, A. Förster, G. Fontaine, M. Füßling, S. Gabici, Ya A. Gallant, L. Gérard, L. Gerard, D. Gerbig, B. Giebels, Jf F. Glicenstein, B. Glück, P. Goret, D. Göring, D. Hauser, M. Hauser, D. Goring, S. Heinz, G. Heinzelmann, G. Henri, G. Hermann, Ja A. Hinton, A. Hoffmann, W. Hofmann, Mathew Holleran, S. Hoppe, D. Horns, A. Jacholkowska, O. C. de Jager, P. Hofverberg, C. Jahn, I. Jung, K. Katarzy'Nski, K. Katarzyński, U. Katz

, S. Kaufmann, E. Kendziorra, M. Kerschhaggl, Ocker C. De Jager, D. Khangulyan, B. Khélifi, D. Keogh, W. Kluźniak, T. Kneiske, N.-U. Komin, K. Kosack, R. Kossakowski, G. Lamanna, J.-P. Lenain, W. Klu'Zniak, T. Lohse, V. Marandon, Jm M. Martin, O. Martineau-Huynh, A. Marcowith, J. Masbou, D. Maurin, Tjl J. L. McComb, Mc C. Medina, R. Moderski

, E. Moulin, M. Naumann-Godo, M. de Naurois, D. Nedbal, D. Nekrassov, B. Nicholas, J. Niemiec, Sj J. Nolan, S. Ohm, J.-F. Olive, E. de Ona Wilhelmi, D. Klochkov, Kj J. Orford, M. Ostrowski, M. Panter, M. Paz Arribas, G. Pedaletti, I. Busching, G. Pelletier, P.-O. Petrucci, S. Pita, G. Pühlhofer, M. Punch, A. Quirrenbach, Bc C. Raubenheimer, M. Raue, Sm M. Rayner, O. Reimer, M. Renaud, F. Rieger, J. Ripken, J. Mehault, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, Cb B. Rulten, J. Ruppel, V. Sahakian, A. Santangelo, R. Schlickeiser, Fm M. Schöck, R. Schröder, U. Schwanke, G. Puhlhofer, S. Schwarzburg, S. Schwemmer, A. Shalchi, M. Sikora

, Ł. Stawarz, Jl L. Skilton, H. Sol, D. Spangler, R. Steenkamp, C. Stegmann, F. Stinzing, G. Superina, A. Szostek, F. M. Sch¨ock, Ph H. Tam, J.-P. Tavernet, R. Terrier, O. Tibolla, M. Tluczykont, C. van Eldik, L. Stawarz, G. Vasileiadis, Christo Venter, L. Venter, Jp P. Vialle, F. M. Schock, P. Vincent, M. Vivier, Hj J. Völk, F. Volpe, Sj J. Wagner, M. Ward, Aa A. Zdziarski, H. E. S. S. Collaboration, A. Zech, :.

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Abstract

The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron fraction up to 100 GeV - motivated many interpretations in terms of dark matter scenarios; alternative explanations assume a nearby electron source like a pulsar or supernova remnant. Here we present a measurement of the cosmic-ray electron spectrum with H.E.S.S. starting at 340 GeV. While the overall electron flux measured by H.E.S.S. is consistent with the ATIC data within statistical and systematic errors, the H.E.S.S. data exclude a pronounced peak in the electron spectrum as suggested for interpretation by ATIC. The H.E.S.S. data follow a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) +- 0.3 (syst.), which steepens at about 1 TeV. ; Comment: 4 pages, 3 figures, Fermi data included, explanation added

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Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.

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