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

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 assu...

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Main Authors:	Aharonian, F., Akhperjanian, A., Anton, G., Barres de Almeida, U., Bazer-Bachi, A., Becherini, Y., Behera, B., Bernlöhr, K., Bochow, A., Boisson, C., Bolmont, J., Borrel, V., Brucker, J., Brun, F., Brun, P., BüHLER, R., Bulik, T., Büsching, I., Boutelier, T., Chadwick, P., Charbonnier, A., Chaves, R., Cheesebrough, A., Chounet, L., Clapson, A., Coignet, G., Dalton, M., Daniel, M., Davids, I., Degrange, B., Deil, C., Dickinson, H., Djannati-Ataï, A., Domainko, W., Drury, L., Dubois, F., Dubus, G., Dyks, J., Dyrda, M., Egberts, K., Emmanoulopoulos, D., Espigat, P., Farnier, C., Feinstein, F., Fiasson, A., Förster, A., Fontaine, G., Füßling, M., Gabici, S., Gallant, Y., Gerard, L., Gerbig, D., Giebels, B., Glicenstein, J., Glück, B., Goret, P., Göring, D., Häuser, D., Hauser, M., Heinz, S., Heinzelmann, G., Henri, G., Hermann, G., Hinton, J., Hoffmann, A., Hofmann, W., Holleran, M., Hoppe, P., Horns, D., Jacholkowska, A., De Jager, O., Jahn, C., Jung, I., Katarzynski, K., Katz, U., Kaufmann, S., Kendziorra, E., Kerschhaggl, M., Khangulyan, D., Khélifi, B., Keogh, D., Kluzniak, W., Kneiske, T., Komin, N., Kosack, K., Kossakowski, R., Lamanna, G., Lenain, J., Lohse, T., Marandon, V., Martin, J., Martineau-Huynh, O., Marcowith, A., Masbou, J., Maurin, D., McComb, T., Medina, C., Moderski, R., Moulin, E., Naumann-Godo, M., de Naurois, M., Nedbal, D., Nekrassov, D., Nicholas, B., Niemiec, J., Nolan, S., Ohm, S., Olive, J., de Oña Wilhelmi, E., Orford, K., Ostrowski, M., Panter, M., Paz Arribas, M., Pedaletti, G., Pelletier, G., Petrucci, P., Pita, S., Pühlhofer, G., Punch, M., Quirrenbach, A., Raubenheimer, B., Raue, M., Rayner, S., Reimer, O., Renaud, M., Rieger, F., Ripken, J., Rob, L., Rosier Lees, S., Rowell, G., Rudak, B., Rulten, C., Ruppel, J., Sahakian, V., Santangelo, A., Schlickeiser, R., Schöck, F., Schröder, R., Schwanke, U., Schwarzburg, S., Schwemmer, S., Shalchi, A., Sikora, M., Skilton, J., Sol, H., Spangler, D., Stawarz, L., Steenkamp, R., Stegmann, C., Stinzing, F., Superina, G., Szostek, A., Tam, P., Tavernet, J., Terrier, R., Tibolla, Omar, Tluczykont, M., van Eldik, C., Vasileiadis, G., Venter, C., Venter, L., Vialle, J., Vincent, P., Vivier, M., Volk, H., Volpe, F., Wagner, S., Ward, M., Zdziarski, A., Zech, A.
Format:	Journal Article
Published:	EDP Sciences 2009
Online Access:	http://www.aanda.org/articles/aa/pdf/2009/47/aa13323-09.pdf http://hdl.handle.net/20.500.11937/39341

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author	Aharonian, F. Akhperjanian, A. Anton, G. Barres de Almeida, U. Bazer-Bachi, A. Becherini, Y. Behera, B. Bernlöhr, K. Bochow, A. Boisson, C. Bolmont, J. Borrel, V. Brucker, J. Brun, F. Brun, P. BüHLER, R. Bulik, T. Büsching, I. Boutelier, T. Chadwick, P. Charbonnier, A. Chaves, R. Cheesebrough, A. Chounet, L. Clapson, A. Coignet, G. Dalton, M. Daniel, M. Davids, I. Degrange, B. Deil, C. Dickinson, H. Djannati-Ataï, A. Domainko, W. Drury, L. Dubois, F. Dubus, G. Dyks, J. Dyrda, M. Egberts, K. Emmanoulopoulos, D. Espigat, P. Farnier, C. Feinstein, F. Fiasson, A. Förster, A. Fontaine, G. Füßling, M. Gabici, S. Gallant, Y. Gerard, L. Gerbig, D. Giebels, B. Glicenstein, J. Glück, B. Goret, P. Göring, D. Häuser, D. Hauser, M. Heinz, S. Heinzelmann, G. Henri, G. Hermann, G. Hinton, J. Hoffmann, A. Hofmann, W. Holleran, M. Hoppe, P. Horns, D. Jacholkowska, A. De Jager, O. Jahn, C. Jung, I. Katarzynski, K. Katz, U. Kaufmann, S. Kendziorra, E. Kerschhaggl, M. Khangulyan, D. Khélifi, B. Keogh, D. Kluzniak, W. Kneiske, T. Komin, N. Kosack, K. Kossakowski, R. Lamanna, G. Lenain, J. Lohse, T. Marandon, V. Martin, J. Martineau-Huynh, O. Marcowith, A. Masbou, J. Maurin, D. McComb, T. Medina, C. Moderski, R. Moulin, E. Naumann-Godo, M. de Naurois, M. Nedbal, D. Nekrassov, D. Nicholas, B. Niemiec, J. Nolan, S. Ohm, S. Olive, J. de Oña Wilhelmi, E. Orford, K. Ostrowski, M. Panter, M. Paz Arribas, M. Pedaletti, G. Pelletier, G. Petrucci, P. Pita, S. Pühlhofer, G. Punch, M. Quirrenbach, A. Raubenheimer, B. Raue, M. Rayner, S. Reimer, O. Renaud, M. Rieger, F. Ripken, J. Rob, L. Rosier Lees, S. Rowell, G. Rudak, B. Rulten, C. Ruppel, J. Sahakian, V. Santangelo, A. Schlickeiser, R. Schöck, F. Schröder, R. Schwanke, U. Schwarzburg, S. Schwemmer, S. Shalchi, A. Sikora, M. Skilton, J. Sol, H. Spangler, D. Stawarz, L. Steenkamp, R. Stegmann, C. Stinzing, F. Superina, G. Szostek, A. Tam, P. Tavernet, J. Terrier, R. Tibolla, Omar Tluczykont, M. van Eldik, C. Vasileiadis, G. Venter, C. Venter, L. Vialle, J. Vincent, P. Vivier, M. Volk, H. Volpe, F. Wagner, S. Ward, M. Zdziarski, A. Zech, A.
author_facet	Aharonian, F. Akhperjanian, A. Anton, G. Barres de Almeida, U. Bazer-Bachi, A. Becherini, Y. Behera, B. Bernlöhr, K. Bochow, A. Boisson, C. Bolmont, J. Borrel, V. Brucker, J. Brun, F. Brun, P. BüHLER, R. Bulik, T. Büsching, I. Boutelier, T. Chadwick, P. Charbonnier, A. Chaves, R. Cheesebrough, A. Chounet, L. Clapson, A. Coignet, G. Dalton, M. Daniel, M. Davids, I. Degrange, B. Deil, C. Dickinson, H. Djannati-Ataï, A. Domainko, W. Drury, L. Dubois, F. Dubus, G. Dyks, J. Dyrda, M. Egberts, K. Emmanoulopoulos, D. Espigat, P. Farnier, C. Feinstein, F. Fiasson, A. Förster, A. Fontaine, G. Füßling, M. Gabici, S. Gallant, Y. Gerard, L. Gerbig, D. Giebels, B. Glicenstein, J. Glück, B. Goret, P. Göring, D. Häuser, D. Hauser, M. Heinz, S. Heinzelmann, G. Henri, G. Hermann, G. Hinton, J. Hoffmann, A. Hofmann, W. Holleran, M. Hoppe, P. Horns, D. Jacholkowska, A. De Jager, O. Jahn, C. Jung, I. Katarzynski, K. Katz, U. Kaufmann, S. Kendziorra, E. Kerschhaggl, M. Khangulyan, D. Khélifi, B. Keogh, D. Kluzniak, W. Kneiske, T. Komin, N. Kosack, K. Kossakowski, R. Lamanna, G. Lenain, J. Lohse, T. Marandon, V. Martin, J. Martineau-Huynh, O. Marcowith, A. Masbou, J. Maurin, D. McComb, T. Medina, C. Moderski, R. Moulin, E. Naumann-Godo, M. de Naurois, M. Nedbal, D. Nekrassov, D. Nicholas, B. Niemiec, J. Nolan, S. Ohm, S. Olive, J. de Oña Wilhelmi, E. Orford, K. Ostrowski, M. Panter, M. Paz Arribas, M. Pedaletti, G. Pelletier, G. Petrucci, P. Pita, S. Pühlhofer, G. Punch, M. Quirrenbach, A. Raubenheimer, B. Raue, M. Rayner, S. Reimer, O. Renaud, M. Rieger, F. Ripken, J. Rob, L. Rosier Lees, S. Rowell, G. Rudak, B. Rulten, C. Ruppel, J. Sahakian, V. Santangelo, A. Schlickeiser, R. Schöck, F. Schröder, R. Schwanke, U. Schwarzburg, S. Schwemmer, S. Shalchi, A. Sikora, M. Skilton, J. Sol, H. Spangler, D. Stawarz, L. Steenkamp, R. Stegmann, C. Stinzing, F. Superina, G. Szostek, A. Tam, P. Tavernet, J. Terrier, R. Tibolla, Omar Tluczykont, M. van Eldik, C. Vasileiadis, G. Venter, C. Venter, L. Vialle, J. Vincent, P. Vivier, M. Volk, H. Volpe, F. Wagner, S. Ward, M. Zdziarski, A. Zech, A.
author_sort	Aharonian, F.
building	Curtin Institutional Repository
collection	Online Access
description	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.
first_indexed	2025-11-14T08:58:19Z
format	Journal Article
id	curtin-20.500.11937-39341
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T08:58:19Z
publishDate	2009
publisher	EDP Sciences
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-393412017-02-28T01:41:50Z Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S. Aharonian, F. Akhperjanian, A. Anton, G. Barres de Almeida, U. Bazer-Bachi, A. Becherini, Y. Behera, B. Bernlöhr, K. Bochow, A. Boisson, C. Bolmont, J. Borrel, V. Brucker, J. Brun, F. Brun, P. BüHLER, R. Bulik, T. Büsching, I. Boutelier, T. Chadwick, P. Charbonnier, A. Chaves, R. Cheesebrough, A. Chounet, L. Clapson, A. Coignet, G. Dalton, M. Daniel, M. Davids, I. Degrange, B. Deil, C. Dickinson, H. Djannati-Ataï, A. Domainko, W. Drury, L. Dubois, F. Dubus, G. Dyks, J. Dyrda, M. Egberts, K. Emmanoulopoulos, D. Espigat, P. Farnier, C. Feinstein, F. Fiasson, A. Förster, A. Fontaine, G. Füßling, M. Gabici, S. Gallant, Y. Gerard, L. Gerbig, D. Giebels, B. Glicenstein, J. Glück, B. Goret, P. Göring, D. Häuser, D. Hauser, M. Heinz, S. Heinzelmann, G. Henri, G. Hermann, G. Hinton, J. Hoffmann, A. Hofmann, W. Holleran, M. Hoppe, P. Horns, D. Jacholkowska, A. De Jager, O. Jahn, C. Jung, I. Katarzynski, K. Katz, U. Kaufmann, S. Kendziorra, E. Kerschhaggl, M. Khangulyan, D. Khélifi, B. Keogh, D. Kluzniak, W. Kneiske, T. Komin, N. Kosack, K. Kossakowski, R. Lamanna, G. Lenain, J. Lohse, T. Marandon, V. Martin, J. Martineau-Huynh, O. Marcowith, A. Masbou, J. Maurin, D. McComb, T. Medina, C. Moderski, R. Moulin, E. Naumann-Godo, M. de Naurois, M. Nedbal, D. Nekrassov, D. Nicholas, B. Niemiec, J. Nolan, S. Ohm, S. Olive, J. de Oña Wilhelmi, E. Orford, K. Ostrowski, M. Panter, M. Paz Arribas, M. Pedaletti, G. Pelletier, G. Petrucci, P. Pita, S. Pühlhofer, G. Punch, M. Quirrenbach, A. Raubenheimer, B. Raue, M. Rayner, S. Reimer, O. Renaud, M. Rieger, F. Ripken, J. Rob, L. Rosier Lees, S. Rowell, G. Rudak, B. Rulten, C. Ruppel, J. Sahakian, V. Santangelo, A. Schlickeiser, R. Schöck, F. Schröder, R. Schwanke, U. Schwarzburg, S. Schwemmer, S. Shalchi, A. Sikora, M. Skilton, J. Sol, H. Spangler, D. Stawarz, L. Steenkamp, R. Stegmann, C. Stinzing, F. Superina, G. Szostek, A. Tam, P. Tavernet, J. Terrier, R. Tibolla, Omar Tluczykont, M. van Eldik, C. Vasileiadis, G. Venter, C. Venter, L. Vialle, J. Vincent, P. Vivier, M. Volk, H. Volpe, F. Wagner, S. Ward, M. Zdziarski, A. Zech, A. 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. 2009 Journal Article http://hdl.handle.net/20.500.11937/39341 http://www.aanda.org/articles/aa/pdf/2009/47/aa13323-09.pdf EDP Sciences restricted
spellingShingle	Aharonian, F. Akhperjanian, A. Anton, G. Barres de Almeida, U. Bazer-Bachi, A. Becherini, Y. Behera, B. Bernlöhr, K. Bochow, A. Boisson, C. Bolmont, J. Borrel, V. Brucker, J. Brun, F. Brun, P. BüHLER, R. Bulik, T. Büsching, I. Boutelier, T. Chadwick, P. Charbonnier, A. Chaves, R. Cheesebrough, A. Chounet, L. Clapson, A. Coignet, G. Dalton, M. Daniel, M. Davids, I. Degrange, B. Deil, C. Dickinson, H. Djannati-Ataï, A. Domainko, W. Drury, L. Dubois, F. Dubus, G. Dyks, J. Dyrda, M. Egberts, K. Emmanoulopoulos, D. Espigat, P. Farnier, C. Feinstein, F. Fiasson, A. Förster, A. Fontaine, G. Füßling, M. Gabici, S. Gallant, Y. Gerard, L. Gerbig, D. Giebels, B. Glicenstein, J. Glück, B. Goret, P. Göring, D. Häuser, D. Hauser, M. Heinz, S. Heinzelmann, G. Henri, G. Hermann, G. Hinton, J. Hoffmann, A. Hofmann, W. Holleran, M. Hoppe, P. Horns, D. Jacholkowska, A. De Jager, O. Jahn, C. Jung, I. Katarzynski, K. Katz, U. Kaufmann, S. Kendziorra, E. Kerschhaggl, M. Khangulyan, D. Khélifi, B. Keogh, D. Kluzniak, W. Kneiske, T. Komin, N. Kosack, K. Kossakowski, R. Lamanna, G. Lenain, J. Lohse, T. Marandon, V. Martin, J. Martineau-Huynh, O. Marcowith, A. Masbou, J. Maurin, D. McComb, T. Medina, C. Moderski, R. Moulin, E. Naumann-Godo, M. de Naurois, M. Nedbal, D. Nekrassov, D. Nicholas, B. Niemiec, J. Nolan, S. Ohm, S. Olive, J. de Oña Wilhelmi, E. Orford, K. Ostrowski, M. Panter, M. Paz Arribas, M. Pedaletti, G. Pelletier, G. Petrucci, P. Pita, S. Pühlhofer, G. Punch, M. Quirrenbach, A. Raubenheimer, B. Raue, M. Rayner, S. Reimer, O. Renaud, M. Rieger, F. Ripken, J. Rob, L. Rosier Lees, S. Rowell, G. Rudak, B. Rulten, C. Ruppel, J. Sahakian, V. Santangelo, A. Schlickeiser, R. Schöck, F. Schröder, R. Schwanke, U. Schwarzburg, S. Schwemmer, S. Shalchi, A. Sikora, M. Skilton, J. Sol, H. Spangler, D. Stawarz, L. Steenkamp, R. Stegmann, C. Stinzing, F. Superina, G. Szostek, A. Tam, P. Tavernet, J. Terrier, R. Tibolla, Omar Tluczykont, M. van Eldik, C. Vasileiadis, G. Venter, C. Venter, L. Vialle, J. Vincent, P. Vivier, M. Volk, H. Volpe, F. Wagner, S. Ward, M. Zdziarski, A. Zech, A. Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title	Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title_full	Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title_fullStr	Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title_full_unstemmed	Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title_short	Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S.
title_sort	probing the atic peak in the cosmic-ray electron spectrum with h.e.s.s.
url	http://www.aanda.org/articles/aa/pdf/2009/47/aa13323-09.pdf http://hdl.handle.net/20.500.11937/39341

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

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