Related papers: High-Statistics Measurement of the Cosmic-Ray Elec…

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons

High energy cosmic ray electrons plus positrons (CREs), which lose energy quickly during their propagation, provide an ideal probe of Galactic high-energy processes and may enable the observation of phenomena such as dark-matter particle…

High Energy Astrophysical Phenomena · Physics 2017-12-11 G. Ambrosi , Q. An , R. Asfandiyarov , P. Azzarello , P. Bernardini , B. Bertucci , M. S. Cai , J. Chang , D. Y. Chen , H. F. Chen , J. L. Chen , W. Chen , M. Y. Cui , T. S. Cui , A. D'Amone , A. De Benedittis , I. De Mitri , M. Di Santo , J. N. Dong , T. K. Dong , Y. F. Dong , Z. X. Dong , G. Donvito , D. Droz , K. K. Duan , J. L. Duan , M. Duranti , D. D'Urso , R. R. Fan , Y. Z. Fan , F. Fang , C. Q. Feng , L. Feng , P. Fusco , V. Gallo , F. J. Gan , M. Gao , S. S. Gao , F. Gargano , S. Garrappa , K. Gong , Y. Z. Gong , D. Y. Guo , J. H. Guo , Y. M. Hu , G. S. Huang , Y. Y. Huang , M. Ionica , D. Jiang , W. Jiang , X. Jin , J. Kong , S. J. Lei , S. Li , X. Li , W. L. Li , Y. Li , Y. F. Liang , Y. M. Liang , N. H. Liao , H. Liu , J. Liu , S. B. Liu , W. Q. Liu , Y. Liu , F. Loparco , M. Ma , P. X. Ma , S. Y. Ma , T. Ma , X. Q. Ma , X. Y. Ma , G. Marsella , M. N. Mazziotta , D. Mo , X. Y. Niu , X. Y. Peng , W. X. Peng , R. Qiao , J. N. Rao , M. M. Salinas , G. Z. Shang , W. H. Shen , Z. Q. Shen , Z. T. Shen , J. X. Song , H. Su , M. Su , Z. Y. Sun , A. Surdo , X. J. Teng , X. B. Tian , A. Tykhonov , V. Vagelli , S. Vitillo , C. Wang , H. Wang , H. Y. Wang , J. Z. Wang , L. G. Wang , Q. Wang , S. Wang , X. H. Wang , X. L. Wang , Y. F. Wang , Y. P. Wang , Y. Z. Wang , S. C. Wen , Z. M. Wang , D. M. Wei , J. J. Wei , Y. F. Wei , D. Wu , J. Wu , L. B. Wu , S. S. Wu , X. Wu , K. Xi , Z. Q. Xia , Y. L. Xin , H. T. Xu , Z. L. Xu , Z. Z. Xu , G. F. Xue , H. B. Yang , P. Yang , Y. Q. Yang , Z. L. Yang , H. J. Yao , Y. H. Yu , Q. Yuan , C. Yue , J. J. Zang , C. Zhang , D. L. Zhang , F. Zhang , J. B. Zhang , J. Y. Zhang , J. Z. Zhang , L. Zhang , P. F. Zhang , S. X. Zhang , W. Z. Zhang , Y. Zhang , Y. J. Zhang , Y. Q. Zhang , Y. L. Zhang , Y. P. Zhang , Z. Zhang , Z. Y. Zhang , H. Zhao , H. Y. Zhao , X. F. Zhao , C. Y. Zhou , Y. Zhou , X. Zhu , Y. Zhu , S. Zimmer

Measurement of Cosmic-ray Electrons at TeV Energies by VERITAS

Cosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighborhood. CREs lose energy rapidly via synchrotron radiation and inverse-Compton scattering processes while propagating within the…

High Energy Astrophysical Phenomena · Physics 2019-02-20 VERITAS Collaboration , A. Archer , W. Benbow , R. Bird , R. Brose , M. Buchovecky , J. H. Buckley , V. Bugaev , M. P. Connolly , W. Cui , Q. Feng , J. P. Finley , L. Fortson , A. Furniss , G. Gillanders , M. Hütten , D. Hanna , O. Hervet , J. Holder , G. Hughes , T. B. Humensky , C. A. Johnson , P. Kaaret , P. Kar , N. Kelley-Hoskins , M. Kertzman , D. Kieda , M. Krause , F. Krennrich , S. Kumar , M. J. Lang , T. T. Y. Lin , G. Maier , S. McArthur , P. Moriarty , R. Mukherjee , S. O'Brien , R. A. Ong , A. N. Otte , A. Petrashyk , M. Pohl , E. Pueschel , J. Quinn , K. Ragan , P. T. Reynolds , G. T. Richards , E. Roache , C. Rulten , I. Sadeh , M. Santander , G. H. Sembroski , D. Staszak , I. Sushch , J. Tyler , S. P. Wakely , R. M. Wells , P. Wilcox , A. Wilhelm , D. A. Williams , T. J Williamson , B. Zitzer

A Cosmic-ray Electron Spectrum with VERITAS

Cosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighbourhood. CREs lose energy rapidly via inverse Compton scattering and synchrotron processes while propagating in the Galaxy,…

High Energy Astrophysical Phenomena · Physics 2019-08-13 David Staszak

Cosmic-ray electron+positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope

We present a measurement of the cosmic-ray electron+positron spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope. We find that the spectrum is well fit by a broken power…

High Energy Astrophysical Phenomena · Physics 2017-04-25 LAT Collaboration , S. Abdollahi , M. Ackermann , M. Ajello , W. B. Atwood , L. Baldini , G. Barbiellini , D. Bastieri , R. Bellazzini , E. D. Bloom , R. Bonino , T. J. Brandt , J. Bregeon , P. Bruel , R. Buehler , R. A. Cameron , R. Caputo , M. Caragiulo , D. Castro , E. Cavazzuti , C. Cecchi , A. Chekhtman , S. Ciprini , J. Cohen-Tanugi , F. Costanza , A. Cuoco , S. Cutini , F. D'Ammando , F. de Palma , R. Desiante , S. W. Digel , N. Di Lalla , M. Di Mauro , L. Di Venere , P. S. Drell , A. Drlica-Wagner , C. Favuzzi , W. B. Focke , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Giglietto , F. Giordano , M. Giroletti , D. Green , L. Guillemot , S. Guiriec , A. K. Harding , T. Jogler , G. Jóhannesson , T. Kamae , M. Kuss , G. La Mura , L. Latronico , F. Longo , F. Loparco , P. Lubrano , S. Maldera , D. Malyshev , A. Manfreda , M. N. Mazziotta , P. F. Michelson , N. Mirabal , W. Mitthumsiri , T. Mizuno , A. A. Moiseev , M. E. Monzani , A. Morselli , I. V. Moskalenko , M. Negro , E. Nuss , E. Orlando , D. Paneque , J. S. Perkins , M. Pesce-Rollins , F. Piron , G. Pivato , T. A. Porter , G. Principe , S. Rainò , R. Rando , M. Razzano , A. Reimer , O. Reimer , C. Sgrò , D. Simone , E. J. Siskind , F. Spada , G. Spandre , P. Spinelli , H. Tajima , J. B. Thayer , L. Tibaldo , D. F. Torres , E. Troja , M. Wood , A. Worley , G. Zaharijas , S. Zimmer

The High Energy Cosmic Ray Electron Spectrum measured by Fermi Gamma-Ray Space Telescope: some possible interpretations

The Fermi Large Area Telescope (LAT) has provided the measurement of the high energy cosmic ray electrons plus positrons (CRE) spectrum with unprecedented accuracy form 20 GeV to 1 TeV. Recently this range has been extended down to ~ 7 GeV.…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Giuseppe Di Bernardo , Daniele Gaggero , Dario Grasso

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…

High Energy Astrophysical Phenomena · Physics 2012-08-27 H. E. S. S. Collaboration , : , F. Aharonian

Implications of a possible TeV break in the cosmic-ray electron and positron flux

A TeV spectral break in the total flux of cosmic-ray electrons and positrons (CREs) at which the spectral power index softens from $\sim 3$ to $\sim 4$ has been observed by H.E.S.S. and recently confirmed by DAMPE with a high significance…

High Energy Astrophysical Phenomena · Physics 2021-06-16 Yu-Chen Ding , Nan Li , Chun-Cheng Wei , Yue-Liang Wu , Yu-Feng Zhou

Direct Measurement of the Spectral Structure of Cosmic-Ray Electrons+Positrons in the TeV Region with CALET on the International Space Station

Detailed measurements of the spectral structure of cosmic-ray electrons and positrons from 10.6 GeV to 7.5 TeV are presented from over 7 years of observations with the CALorimetric Electron Telescope (CALET) on the International Space…

High Energy Astrophysical Phenomena · Physics 2023-11-15 O. Adriani , Y. Akaike , K. Asano , Y. Asaoka , E. Berti , G. Bigongiari , W. R. Binns , M. Bongi , P. Brogi , A. Bruno , J. H. Buckley , N. Cannady , G. Castellini , C. Checchia , M. L. Cherry , G. Collazuol , G. A. de Nolfo , K. Ebisawa , A. W. Ficklin , H. Fuke , S. Gonzi , T. G. Guzik , T. Hams , K. Hibino , M. Ichimura , K. Ioka , W. Ishizaki , M. H. Israel , K. Kasahara , J. Kataoka , R. Kataoka , Y. Katayose , C. Kato , N. Kawanaka , Y. Kawakubo , K. Kobayashi , K. Kohri , H. S. Krawczynski , J. F. Krizmanic , P. Maestro , P. S. Marrocchesi , A. M. Messineo , J. W. Mitchell , S. Miyake , A. A. Moiseev , M. Mori , N. Mori , H. M. Motz , K. Munakata , S. Nakahira , J. Nishimura , S. Okuno , J. F. Ormes , S. Ozawa , L. Pacini , P. Papini , B. F. Rauch , S. B. Ricciarini , K. Sakai , 3 T. Sakamoto , M. Sasaki , Y. Shimizu , A. Shiomi , P. Spillantini , F. Stolzi , S. Sugita , A. Sulaj , M. Takita , T. Tamura , T. Terasawa , S. Torii , Y. Tsunesada , Y. Uchihori , E. Vannuccini , J. P. Wefel , K. Yamaoka , S. Yanagita , A. Yoshida , K. Yoshida , W. V. Zober

Inferred cosmic-ray spectrum from ${\it Fermi}$-LAT $\gamma$-ray observations of the Earth's limb

Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening of the spectra just below a few hundred GeV, and a…

High Energy Astrophysical Phenomena · Physics 2014-03-24 LAT Collaboration , M. Ackermann , M. Ajello , A. Albert , A. Allafort , L. Baldini , G. Barbiellini , D. Bastieri , K. Bechtol , R. Bellazzini , R. D. Blandford , E. D. Bloom , E. Bonamente , E. Bottacini , A. Bouvier , T. J. Brandt , M. Brigida , P. Bruel , R. Buehler , S. Buson , G. A. Caliandro , R. A. Cameron , P. A. Caraveo , C. Cecchi , E. Charles , R. C. G. Chaves , A. Chekhtman , J. Chiang , G. Chiaro , S. Ciprini , R. Claus , J. Cohen-Tanugi , J. Conrad , S. Cutini , M. Dalton , F. D'Ammando , A. de Angelis , F. de Palma , C. D. Dermer , S. W. Digel , L. Di Venere , E. do Couto e Silva , P. S. Drell , A. Drlica-Wagner , C. Favuzzi , S. J. Fegan , E. C. Ferrara , W. B. Focke , A. Franckowiak , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , S. Germani , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , G. A. Gomez-Vargas , I. A. Grenier , J. E. Grove , S. Guiriec , M. Gustafsson , D. Hadasch , Y. Hanabata , A. K. Harding , M. Hayashida , K. Hayashi , J. W. Hewitt , D. Horan , X. Hou , R. E. Hughes , Y. Inoue , M. S. Jackson , T. Jogler , G. Jóhannesson , A. S. Johnson , T. Kamae , T. Kawano , J. Knödlseder , M. Kuss , J. Lande , S. Larsson , L. Latronico , F. Longo , F. Loparco , M. N. Lovellette , P. Lubrano , M. Mayer , M. N. Mazziotta , J. E. McEnery , J. Mehault , P. F. Michelson , W. Mitthumsiri , T. Mizuno , A. A. Moiseev , C. Monte , M. E. Monzani , A. Morselli , I. V. Moskalenko , S. Murgia , R. Nemmen , E. Nuss , T. Ohsugi , A. Okumura , M. Orienti , E. Orlando , J. F. Ormes , D. Paneque , J. H. Panetta , J. S. Perkins , M. Pesce-Rollins , F. Piron , G. Pivato , T. A. Porter , S. Rainò , R. Rando , M. Razzano , S. Razzaque , A. Reimer , O. Reimer , S. Ritz , M. Roth , M. Schaal , A. Schulz , C. Sgrò , E. J. Siskind , G. Spandre , P. Spinelli , A. W. Strong , H. Takahashi , Y. Takeuchi , J. G. Thayer , J. B. Thayer , D. J. Thompson , L. Tibaldo , M. Tinivella , D. F. Torres , G. Tosti , E. Troja , V. Tronconi , T. L. Usher , J. Vandenbroucke , V. Vasileiou , G. Vianello , V. Vitale , M. Werner , B. L. Winer , K. S. Wood , M. Wood , Z. Yang

Cosmic ray spectrum of protons plus helium nuclei between 6 TeV and 158 TeV from HAWC data

A measurement with high statistics of the differential energy spectrum of light elements in cosmic rays, in particular, of primary H plus He nuclei, is reported. The spectrum is presented in the energy range from $6$ to $158$ TeV per…

High Energy Astrophysical Phenomena · Physics 2022-04-15 HAWC Collaboration , A. Albert , R. Alfaro , C. Alvarez , J. R. Angeles Camacho , J. C. Arteaga-Velázquez , K. P. Arunbabu , D. Avila Rojas , H. A. Ayala Solares , E. Belmont-Moreno , C. Brisbois , K. S. Caballero-Mora , T. Capistrán , A. Carramiñana , S. Casanova , U. Cotti , J. Cotzomi , E. De la Fuente , R. Diaz Hernandez , M. A. DuVernois , M. Durocher , J. C. Díaz-Vélez , C. Espinoza , N. Fraija , J. A. García-González , F. Garfias , M. M. González , J. A. Goodman , J. P. Harding , B. Hona , D. Huang , F. Hueyotl-Zahuantitla , P. Hüntemeyer , A. Iriarte , V. Joshi , D. Kieda , G. J. Kunde , A. Lara , W. H. Lee , H. León Vargas , J. T. Linnemann , A. L. Longinotti , G. Luis-Raya , K. Malone , O. Martinez , J. Martínez-Castro , J. A. Matthews , P. Miranda-Romagnoli , J. A. Morales-Soto , E. Moreno , M. Mostafá , A. Nayerhoda , L. Nellen , M. Newbold , R. Noriega-Papaqui , N. Omodei , E. G. Pérez-Pérez , C. D. Rho , D. Rosa-González , H. Salazar , F. Salesa Greus , A. Sandoval , J. Serna-Franco , A. J. Smith , R. W. Springer , K. Tollefson , I. Torres , R. Torres-Escobedo , F. Ureña-Mena , L. Villaseñor , X. Wang , E. Willox , H. Zhou , C. de León , J. D. Álvarez , G. B. Yodh , A. Zepeda

Energy spectra of cosmic-ray nuclei at high energies

We present new measurements of the energy spectra of cosmic-ray (CR) nuclei from the second flight of the balloon-borne experiment Cosmic Ray Energetics And Mass (CREAM). The instrument included different particle detectors to provide…

High Energy Astrophysical Phenomena · Physics 2014-11-20 H. S. Ahn , P. Allison , M. G. Bagliesi , L. Barbier , J. J. Beatty , G. Bigongiari , T. J. Brandt , J. T. Childers , N. B. Conklin , S. Coutu , M. A. DuVernois , O. Ganel , J. H. Han , J. A. Jeon , K. C. Kim , M. H. Lee , P. Maestro , A. Malinine , P. S. Marrocchesi , S. Minnick , S. I. Mognet , S. W. Nam , S. Nutter , I. H. Park , N. H. Park , E. S. Seo , R. Sina , P. Walpole , J. Wu , J. Yang , Y. S. Yoon , R. Zei , S. Y. Zinn

High-Energy Cosmic Rays from Galactic and Extragalactic Gamma-Ray Bursts

A model for high-energy (>10^14 eV) cosmic rays (HECRs) from galactic and extragalactic gamma-ray bursts (GRBs) is summarized. Relativistic outflows in GRBs are assumed to inject power-law distributions of CR protons and ions to the highest…

Astrophysics · Physics 2009-11-10 S. D. Wick , C. D. Dermer , A. Atoyan

The energy spectrum of cosmic-ray electrons at TeV energies

The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon/satellite based instruments in the detection of very-high-energy (>600 GeV) cosmic-ray electrons. Here we present the…

Astrophysics · Physics 2012-08-27 H. E. S. S. Collaboration , : , F. Aharonian

Very high energy emission from the hard spectrum sources HESS J1641-463, HESS J1741-302 and HESS J1826-130

A recent study of the diffuse $\gamma$-ray emission in the Central Molecular Zone using very high energy (VHE, E $>$ 0.1 TeV) H.E.S.S. data suggests that the Galactic Center (GC) is the most plausible supplier of Galactic ultra-relativistic…

High Energy Astrophysical Phenomena · Physics 2019-08-14 E. O. Angüner , S. Casanova , I. Oya , F. Aharonian , P. Bordas , A. Ziegler

Testing the Origin of High-Energy Cosmic Rays

Recent accurate measurements of cosmic-ray (CR) protons and nuclei by ATIC-2, CREAM, and PAMELA reveal: a) unexpected spectral hardening in the spectra of CR species above a few hundred GeV per nucleon, b) a harder spectrum of He compared…

High Energy Astrophysical Phenomena · Physics 2016-08-14 Andrey E. Vladimirov , Guðlaugur Jóhannesson , Igor V. Moskalenko , Troy A. Porter

Spectra of cosmic ray electrons and diffuse gamma rays with the constraints of AMS-02 and HESS data

Recently, AMS-02 reported their observed results of cosmic rays(CRs). In addition to the AMS-02 data, we add HESS data to estimate the spectra of CR electrons and the diffuse gamma rays above TeV. In the conventional diffusion model, a…

High Energy Astrophysical Phenomena · Physics 2015-10-06 Ding Chen , Jing Huang , Hong-Bo Jin

A Minimal Interpretation of the Galactic Cosmic-Ray Proton and Helium Spectra from GeV to PeV Energies

High-precision measurements of the cosmic-ray (CR) proton and helium spectra have revealed significant deviations from a simple power law, characterized by multiple spectral features, including a hardening above $\sim$100~GeV, a broad…

High Energy Astrophysical Phenomena · Physics 2026-04-14 Felix Aharonian , Bing Theodore Zhang

Solar gamma ray probe of local cosmic ray electrons

TeV-range cosmic ray electrons and positrons (CREs) have been directly measured in the search for new physics or unknown astrophysical sources. CREs can inverse-Compton scatter solar photons and boost their energies into gamma ray bands.…

High Energy Astrophysical Phenomena · Physics 2023-09-26 Hong-Gang Yang , Yu Gao , Yin-Zhe Ma , Roland M. Crocker

On possible interpretations of the high energy electron-positron spectrum measured by the Fermi Large Area Telescope

The Fermi-LAT experiment recently reported high precision measurements of the spectrum of cosmic-ray electrons-plus-positrons (CRE) between 20 GeV and 1 TeV. The spectrum shows no prominent spectral features, and is significantly harder…

High Energy Astrophysical Phenomena · Physics 2009-09-28 D. Grasso , S. Profumo , A. W. Strong , L. Baldini , R. Bellazzini , E. D. Bloom , J. Bregeon , G. Di Bernardo , D. Gaggero , N. Giglietto , T. Kamae , L. Latronico , F. Longo , M. N. Mazziotta , A. A. Moiseev , A. Morselli , J. F. Ormes , M. Pesce-Rollins , M. Pohl , M. Razzano , C. Sgro , G. Spandre , T. E. Stephens

High-Energy Cosmic Rays from Gamma-Ray Bursts

A model is proposed for the origin of cosmic rays (CRs) from ~10^14 eV to the highest energies, >10^20 eV. Gamma-Ray Bursts (GRBs) are assumed to inject CR protons and ions into the interstellar medium of star-forming galaxies--including…

Astrophysics · Physics 2008-11-26 Stuart D. Wick , Charles D. Dermer , Armen Atoyan