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High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S

Fuente: arXiv

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Main Authors:	Aharonian, F., Benkhali, F. Ait, Aschersleben, J., Ashkar, H., Backes, M., Martins, V. Barbosa, Batzofin, R., Becherini, Y., Berge, D., Bernlöhr, K., Bi, B., Böttcher, M., Boisson, C., Bolmont, J., de Lavergne, M. de Bony, Borowska, J., Bouyahiaoui, M., Brose, R., Brown, A., Brun, F., Bruno, B., Bulik, T., Burger-Scheidlin, C., Bylund, T., Casanova, S., Celic, J., Cerruti, M., Chand, T., Chandra, S., Chen, A., Chibueze, J., Chibueze, O., Collins, T., Cotter, G., Mbarubucyeye, J. Damascene, Devin, J., Djuvsland, J., Dmytriiev, A., Egberts, K., Einecke, S., Ernenwein, J. -P., Fegan, S., Feijen, K., Fontaine, G., Funk, S., Gabici, S., Gallant, Y. A., Glicenstein, J. F., Glombitza, J., Grolleron, G., Heß, B., Hofmann, W., Holch, T. L., Holler, M., Horns, D., Huang, Zhiqiu, Jamrozy, M., Jankowsky, F., Joshi, V., Jung-Richardt, I., Kasai, E., Katarzynski, K., Kerszberg, D., Khatoon, R., Khelifi, B., Kluzniak, W., Komin, Nu., Kosack, K., Kostunin, D., Kundu, A., Lang, R. G., Stum, S. Le, Leitl, F., Lemiere, A., Lemoine-Goumard, M., Lenain, J. -P., Leuschner, F., Luashvili, A., Mackey, J., Malyshev, D., Marandon, V., Marinos, P., Marti-Devesa, G., Marx, R., Meyer, M., Mitchell, A., Moderski, R., Moghadam, M. O., Mohrmann, L., Montanari, A., Moulin, E., de Naurois, M., Niemiec, J., Ohm, S., Olivera-Nieto, L., Wilhelmi, E. de Ona, Ostrowski, M., Panny, S., Panter, M., Parsons, D., Pensec, U., Peron, G., Pühlhofer, G., Punch, M., Quirrenbach, A., Ravikularaman, S., Regeard, M., Reimer, A., Reimer, O., Reis, I., Ren, H., Reville, B., Rieger, F., Rowell, G., Rudak, B., Ruiz-Velasco, E., Sahakian, V., Salzmann, H., Santangelo, A., Sasaki, M., Schäfer, J., Schüssler, F., Schutte, H. M., Shapopi, J. N. S., Sharma, A., Sol, H., Spencer, S., Stawarz, L., Steinmassl, S., Steppa, C., Suzuki, H., Takahashi, T., Tanaka, T., Taylor, A. M., Terrier, R., Tsirou, M., van Eldik, C., Vecchi, M., Venter, C., Vink, J., Wach, T., Wagner, S. J., Wierzcholska, A., Zacharias, M., Zdziarski, A. A., Zech, A., Zywucka, N.
Format:	Preprint
Published:	2024
Subjects:	High Energy Astrophysical Phenomena
Online Access:	Acceder al recurso
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_version_	1866916493875216384
author	Aharonian, F. Benkhali, F. Ait Aschersleben, J. Ashkar, H. Backes, M. Martins, V. Barbosa Batzofin, R. Becherini, Y. Berge, D. Bernlöhr, K. Bi, B. Böttcher, M. Boisson, C. Bolmont, J. de Lavergne, M. de Bony Borowska, J. Bouyahiaoui, M. Brose, R. Brown, A. Brun, F. Bruno, B. Bulik, T. Burger-Scheidlin, C. Bylund, T. Casanova, S. Celic, J. Cerruti, M. Chand, T. Chandra, S. Chen, A. Chibueze, J. Chibueze, O. Collins, T. Cotter, G. Mbarubucyeye, J. Damascene Devin, J. Djuvsland, J. Dmytriiev, A. Egberts, K. Einecke, S. Ernenwein, J. -P. Fegan, S. Feijen, K. Fontaine, G. Funk, S. Gabici, S. Gallant, Y. A. Glicenstein, J. F. Glombitza, J. Grolleron, G. Heß, B. Hofmann, W. Holch, T. L. Holler, M. Horns, D. Huang, Zhiqiu Jamrozy, M. Jankowsky, F. Joshi, V. Jung-Richardt, I. Kasai, E. Katarzynski, K. Kerszberg, D. Khatoon, R. Khelifi, B. Kluzniak, W. Komin, Nu. Kosack, K. Kostunin, D. Kundu, A. Lang, R. G. Stum, S. Le Leitl, F. Lemiere, A. Lemoine-Goumard, M. Lenain, J. -P. Leuschner, F. Luashvili, A. Mackey, J. Malyshev, D. Malyshev, D. Marandon, V. Marinos, P. Marti-Devesa, G. Marx, R. Meyer, M. Mitchell, A. Moderski, R. Moghadam, M. O. Mohrmann, L. Montanari, A. Moulin, E. de Naurois, M. Niemiec, J. Ohm, S. Olivera-Nieto, L. Wilhelmi, E. de Ona Ostrowski, M. Panny, S. Panter, M. Parsons, D. Pensec, U. Peron, G. Pühlhofer, G. Punch, M. Quirrenbach, A. Ravikularaman, S. Regeard, M. Reimer, A. Reimer, O. Reis, I. Ren, H. Reville, B. Rieger, F. Rowell, G. Rudak, B. Ruiz-Velasco, E. Sahakian, V. Salzmann, H. Santangelo, A. Sasaki, M. Schäfer, J. Schüssler, F. Schutte, H. M. Shapopi, J. N. S. Sharma, A. Sol, H. Spencer, S. Stawarz, L. Steinmassl, S. Steppa, C. Suzuki, H. Takahashi, T. Tanaka, T. Taylor, A. M. Terrier, R. Tsirou, M. van Eldik, C. Vecchi, M. Venter, C. Vink, J. Wach, T. Wagner, S. J. Wierzcholska, A. Zacharias, M. Zdziarski, A. A. Zech, A. Zywucka, N.
author_facet	Aharonian, F. Benkhali, F. Ait Aschersleben, J. Ashkar, H. Backes, M. Martins, V. Barbosa Batzofin, R. Becherini, Y. Berge, D. Bernlöhr, K. Bi, B. Böttcher, M. Boisson, C. Bolmont, J. de Lavergne, M. de Bony Borowska, J. Bouyahiaoui, M. Brose, R. Brown, A. Brun, F. Bruno, B. Bulik, T. Burger-Scheidlin, C. Bylund, T. Casanova, S. Celic, J. Cerruti, M. Chand, T. Chandra, S. Chen, A. Chibueze, J. Chibueze, O. Collins, T. Cotter, G. Mbarubucyeye, J. Damascene Devin, J. Djuvsland, J. Dmytriiev, A. Egberts, K. Einecke, S. Ernenwein, J. -P. Fegan, S. Feijen, K. Fontaine, G. Funk, S. Gabici, S. Gallant, Y. A. Glicenstein, J. F. Glombitza, J. Grolleron, G. Heß, B. Hofmann, W. Holch, T. L. Holler, M. Horns, D. Huang, Zhiqiu Jamrozy, M. Jankowsky, F. Joshi, V. Jung-Richardt, I. Kasai, E. Katarzynski, K. Kerszberg, D. Khatoon, R. Khelifi, B. Kluzniak, W. Komin, Nu. Kosack, K. Kostunin, D. Kundu, A. Lang, R. G. Stum, S. Le Leitl, F. Lemiere, A. Lemoine-Goumard, M. Lenain, J. -P. Leuschner, F. Luashvili, A. Mackey, J. Malyshev, D. Malyshev, D. Marandon, V. Marinos, P. Marti-Devesa, G. Marx, R. Meyer, M. Mitchell, A. Moderski, R. Moghadam, M. O. Mohrmann, L. Montanari, A. Moulin, E. de Naurois, M. Niemiec, J. Ohm, S. Olivera-Nieto, L. Wilhelmi, E. de Ona Ostrowski, M. Panny, S. Panter, M. Parsons, D. Pensec, U. Peron, G. Pühlhofer, G. Punch, M. Quirrenbach, A. Ravikularaman, S. Regeard, M. Reimer, A. Reimer, O. Reis, I. Ren, H. Reville, B. Rieger, F. Rowell, G. Rudak, B. Ruiz-Velasco, E. Sahakian, V. Salzmann, H. Santangelo, A. Sasaki, M. Schäfer, J. Schüssler, F. Schutte, H. M. Shapopi, J. N. S. Sharma, A. Sol, H. Spencer, S. Stawarz, L. Steinmassl, S. Steppa, C. Suzuki, H. Takahashi, T. Tanaka, T. Taylor, A. M. Terrier, R. Tsirou, M. van Eldik, C. Vecchi, M. Venter, C. Vink, J. Wach, T. Wagner, S. J. Wierzcholska, A. Zacharias, M. Zdziarski, A. A. Zech, A. Zywucka, N.
contents	Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators and provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement of the spectrum of CRe candidate events from 0.3 to 40 TeV with the High Energy Stereoscopic System (H.E.S.S.), covering two orders of magnitude in energy and reaching a proton rejection power of better than $10^{4}$. The measured spectrum is well described by a broken power law, with a break around 1 TeV, where the spectral index increases from $Γ_1 = 3.25$ $\pm$ 0.02 (stat) $\pm$ 0.2 (sys) to $Γ_2 = 4.49$ $\pm$ 0.04 (stat) $\pm$ 0.2 (sys). Apart from the break, the spectrum is featureless. The absence of distinct signatures at multi-TeV energies imposes constraints on the presence of nearby CRe accelerators and the local CRe propagation mechanisms.
format	Preprint
id	arxiv_https___arxiv_org_abs_2411_08189
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S Aharonian, F. Benkhali, F. Ait Aschersleben, J. Ashkar, H. Backes, M. Martins, V. Barbosa Batzofin, R. Becherini, Y. Berge, D. Bernlöhr, K. Bi, B. Böttcher, M. Boisson, C. Bolmont, J. de Lavergne, M. de Bony Borowska, J. Bouyahiaoui, M. Brose, R. Brown, A. Brun, F. Bruno, B. Bulik, T. Burger-Scheidlin, C. Bylund, T. Casanova, S. Celic, J. Cerruti, M. Chand, T. Chandra, S. Chen, A. Chibueze, J. Chibueze, O. Collins, T. Cotter, G. Mbarubucyeye, J. Damascene Devin, J. Djuvsland, J. Dmytriiev, A. Egberts, K. Einecke, S. Ernenwein, J. -P. Fegan, S. Feijen, K. Fontaine, G. Funk, S. Gabici, S. Gallant, Y. A. Glicenstein, J. F. Glombitza, J. Grolleron, G. Heß, B. Hofmann, W. Holch, T. L. Holler, M. Horns, D. Huang, Zhiqiu Jamrozy, M. Jankowsky, F. Joshi, V. Jung-Richardt, I. Kasai, E. Katarzynski, K. Kerszberg, D. Khatoon, R. Khelifi, B. Kluzniak, W. Komin, Nu. Kosack, K. Kostunin, D. Kundu, A. Lang, R. G. Stum, S. Le Leitl, F. Lemiere, A. Lemoine-Goumard, M. Lenain, J. -P. Leuschner, F. Luashvili, A. Mackey, J. Malyshev, D. Malyshev, D. Marandon, V. Marinos, P. Marti-Devesa, G. Marx, R. Meyer, M. Mitchell, A. Moderski, R. Moghadam, M. O. Mohrmann, L. Montanari, A. Moulin, E. de Naurois, M. Niemiec, J. Ohm, S. Olivera-Nieto, L. Wilhelmi, E. de Ona Ostrowski, M. Panny, S. Panter, M. Parsons, D. Pensec, U. Peron, G. Pühlhofer, G. Punch, M. Quirrenbach, A. Ravikularaman, S. Regeard, M. Reimer, A. Reimer, O. Reis, I. Ren, H. Reville, B. Rieger, F. Rowell, G. Rudak, B. Ruiz-Velasco, E. Sahakian, V. Salzmann, H. Santangelo, A. Sasaki, M. Schäfer, J. Schüssler, F. Schutte, H. M. Shapopi, J. N. S. Sharma, A. Sol, H. Spencer, S. Stawarz, L. Steinmassl, S. Steppa, C. Suzuki, H. Takahashi, T. Tanaka, T. Taylor, A. M. Terrier, R. Tsirou, M. van Eldik, C. Vecchi, M. Venter, C. Vink, J. Wach, T. Wagner, S. J. Wierzcholska, A. Zacharias, M. Zdziarski, A. A. Zech, A. Zywucka, N. High Energy Astrophysical Phenomena Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators and provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement of the spectrum of CRe candidate events from 0.3 to 40 TeV with the High Energy Stereoscopic System (H.E.S.S.), covering two orders of magnitude in energy and reaching a proton rejection power of better than $10^{4}$. The measured spectrum is well described by a broken power law, with a break around 1 TeV, where the spectral index increases from $Γ_1 = 3.25$ $\pm$ 0.02 (stat) $\pm$ 0.2 (sys) to $Γ_2 = 4.49$ $\pm$ 0.04 (stat) $\pm$ 0.2 (sys). Apart from the break, the spectrum is featureless. The absence of distinct signatures at multi-TeV energies imposes constraints on the presence of nearby CRe accelerators and the local CRe propagation mechanisms.
title	High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2411.08189