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Inferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb

Accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA recently 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 harder spectrum of He compared to that of protons. These... Full description

Journal Title: Physical Review Letters 17 April 2014, Vol.112(15)
Main Author: Ackermann, M
Other Authors: Ajello, M , Albert, A , Allafort, A , Baldini, L , Barbiellini, G , Bastieri, D , Bechtol, K , Bellazzini, R , Blandford, R. D , Bloom, E. D , Bonamente, E , Bottacini, E , Bouvier, A , Brandt, T. J , Brigida, M , Bruel, P , Buehler, R , Buson, S , Caliandro, G. A , Cameron, R. A , Caraveo, P. A , Cecchi, C , Charles, E , Chaves, R. C. G , Chekhtman, A , Chiang, J , Chiaro, G , Ciprini, S , Claus, R , Cohen-Tanugi, J , Conrad, J , Cutini, S , Dalton, M , D’ammando, F , de Angelis, A , de Palma, F , Dermer, C. D , Digel, S. W , Di Venere, L , Do Couto E Silva, E , Drell, P. S , Drlica-Wagner, A , Favuzzi, C , Fegan, S. J , Ferrara, E. C , Focke, W. B , Franckowiak, A , Fukazawa, Y , Funk, S , Fusco, P , Gargano, F , Gasparrini, D , Germani, S , Giglietto, N , Giordano, F , Giroletti, M , Glanzman, T , Godfrey, G , Gomez-Vargas, G. A , Grenier, I. A , Grove, J. E , Guiriec, S , Gustafsson, M , Hadasch, D , Hanabata, Y , Harding, A. K , Hayashida, M , Hayashi, K , Hewitt, J. W , Horan, D , Hou, X , Hughes, R. E , Inoue, Y , Jackson, M. S , Jogler, T , Jóhannesson, G , Johnson, A. S , Kamae, T , Kawano, T , Knödlseder, J , Kuss, M , Lande, J , Larsson, S , Latronico, L , Longo, F , Loparco, F , Lovellette, M. N , Lubrano, P , Mayer, M , Mazziotta, M. N , Mcenery, J. E , Mehault, J , Michelson, P. F , Mitthumsiri, W , Mizuno, T , Moiseev, A. A , Monte, C , Monzani, M. E , Morselli, A , Moskalenko, I. V , Murgia, S , Nemmen, R , Nuss, E , Ohsugi, T , Okumura, A , Orienti, M , Orlando, E , Ormes, J. F , Paneque, D , Panetta, J. H , Perkins, J. S , Pesce-Rollins, M , Piron, F , Pivato, G , Porter, T. A , Rainò, S , Rando, R , Razzano, M , Razzaque, S , Reimer, A , Reimer, O , Ritz, S , Roth, M , Schaal, M , Schulz, A , Sgrò, C , Siskind, E. J , Spandre, G , Spinelli, P , Strong, A. W , Takahashi, H , Takeuchi, Y , Thayer, J. G , Thayer, J. B , Thompson, D. J , Tibaldo, L , Tinivella, M , Torres, D. F , Tosti, G , Troja, E , Tronconi, V , Usher, T. L , Vandenbroucke, J , Vasileiou, V , Vianello, G , Vitale, V , Werner, M , Winer, B. L , Wood, K. S , Wood, M , Yang, Z
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0031-9007 ; E-ISSN: 1079-7114 ; DOI: 10.1103/PhysRevLett.112.151103
Link: https://www.osti.gov/servlets/purl/1356529
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title: Inferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb
format: Article
creator:
  • Ackermann, M
  • Ajello, M
  • Albert, A
  • Allafort, A
  • Baldini, L
  • Barbiellini, G
  • Bastieri, D
  • Bechtol, K
  • Bellazzini, R
  • Blandford, R. D
  • Bloom, E. D
  • Bonamente, E
  • Bottacini, E
  • Bouvier, A
  • Brandt, T. J
  • Brigida, M
  • Bruel, P
  • Buehler, R
  • Buson, S
  • Caliandro, G. A
  • Cameron, R. A
  • Caraveo, P. A
  • Cecchi, C
  • Charles, E
  • Chaves, R. C. G
  • Chekhtman, A
  • Chiang, J
  • Chiaro, G
  • Ciprini, S
  • Claus, R
  • Cohen-Tanugi, J
  • Conrad, J
  • Cutini, S
  • Dalton, M
  • D’ammando, F
  • de Angelis, A
  • de Palma, F
  • Dermer, C. D
  • Digel, S. W
  • Di Venere, L
  • Do Couto E Silva, E
  • Drell, P. S
  • Drlica-Wagner, A
  • Favuzzi, C
  • Fegan, S. J
  • Ferrara, E. C
  • Focke, W. B
  • Franckowiak, A
  • Fukazawa, Y
  • Funk, S
  • Fusco, P
  • Gargano, F
  • Gasparrini, D
  • Germani, S
  • Giglietto, N
  • Giordano, F
  • Giroletti, M
  • Glanzman, T
  • Godfrey, G
  • Gomez-Vargas, G. A
  • Grenier, I. A
  • Grove, J. E
  • Guiriec, S
  • Gustafsson, M
  • Hadasch, D
  • Hanabata, Y
  • Harding, A. K
  • Hayashida, M
  • Hayashi, K
  • Hewitt, J. W
  • Horan, D
  • Hou, X
  • Hughes, R. E
  • Inoue, Y
  • Jackson, M. S
  • Jogler, T
  • Jóhannesson, G
  • Johnson, A. S
  • Kamae, T
  • Kawano, T
  • Knödlseder, J
  • Kuss, M
  • Lande, J
  • Larsson, S
  • Latronico, L
  • Longo, F
  • Loparco, F
  • Lovellette, M. N
  • Lubrano, P
  • Mayer, M
  • Mazziotta, M. N
  • Mcenery, J. E
  • Mehault, J
  • Michelson, P. F
  • Mitthumsiri, W
  • Mizuno, T
  • Moiseev, A. A
  • Monte, C
  • Monzani, M. E
  • Morselli, A
  • Moskalenko, I. V
  • Murgia, S
  • Nemmen, R
  • Nuss, E
  • Ohsugi, T
  • Okumura, A
  • Orienti, M
  • Orlando, E
  • Ormes, J. F
  • Paneque, D
  • Panetta, J. H
  • Perkins, J. S
  • Pesce-Rollins, M
  • Piron, F
  • Pivato, G
  • Porter, T. A
  • Rainò, S
  • Rando, R
  • Razzano, M
  • Razzaque, S
  • Reimer, A
  • Reimer, O
  • Ritz, S
  • Roth, M
  • Schaal, M
  • Schulz, A
  • Sgrò, C
  • Siskind, E. J
  • Spandre, G
  • Spinelli, P
  • Strong, A. W
  • Takahashi, H
  • Takeuchi, Y
  • Thayer, J. G
  • Thayer, J. B
  • Thompson, D. J
  • Tibaldo, L
  • Tinivella, M
  • Torres, D. F
  • Tosti, G
  • Troja, E
  • Tronconi, V
  • Usher, T. L
  • Vandenbroucke, J
  • Vasileiou, V
  • Vianello, G
  • Vitale, V
  • Werner, M
  • Winer, B. L
  • Wood, K. S
  • Wood, M
  • Yang, Z
subjects:
  • Astronomy And Astrophysics
  • Physics
ispartof: Physical Review Letters, 17 April 2014, Vol.112(15)
description: Accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA recently 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 harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. Here, we use the Fermi Large Area Telescope observations of the γ -ray emission from Earth’s limb for an indirect measurement of the local spectrum of CR protons in the energy range ~ 90 GeV – 6 TeV (derived from a photon energy range 15 GeV–1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index 2.68 ± 0.04 and 2.61 ± 0.08 above ~ 200 GeV , respectively.
language: eng
source:
identifier: ISSN: 0031-9007 ; E-ISSN: 1079-7114 ; DOI: 10.1103/PhysRevLett.112.151103
fulltext: no_fulltext
issn:
  • 0031-9007
  • 00319007
  • 1079-7114
  • 10797114
url: Link


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titleInferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb
creatorAckermann, M ; Ajello, M ; Albert, A ; Allafort, A ; Baldini, L ; Barbiellini, G ; Bastieri, D ; Bechtol, K ; Bellazzini, R ; Blandford, R. D ; Bloom, E. D ; Bonamente, E ; Bottacini, E ; Bouvier, A ; Brandt, T. J ; Brigida, M ; Bruel, P ; Buehler, R ; Buson, S ; Caliandro, G. A ; Cameron, R. A ; Caraveo, P. A ; Cecchi, C ; Charles, E ; Chaves, R. C. G ; Chekhtman, A ; Chiang, J ; Chiaro, G ; Ciprini, S ; Claus, R ; Cohen-Tanugi, J ; Conrad, J ; Cutini, S ; Dalton, M ; D’ammando, F ; de Angelis, A ; de Palma, F ; Dermer, C. D ; Digel, S. W ; Di Venere, L ; Do Couto E Silva, E ; Drell, P. S ; Drlica-Wagner, A ; Favuzzi, C ; Fegan, S. J ; Ferrara, E. C ; Focke, W. B ; Franckowiak, A ; Fukazawa, Y ; Funk, S ; Fusco, P ; Gargano, F ; Gasparrini, D ; Germani, S ; Giglietto, N ; Giordano, F ; Giroletti, M ; Glanzman, T ; Godfrey, G ; Gomez-Vargas, G. A ; Grenier, I. A ; Grove, J. E ; Guiriec, S ; Gustafsson, M ; Hadasch, D ; Hanabata, Y ; Harding, A. K ; Hayashida, M ; Hayashi, K ; Hewitt, J. W ; Horan, D ; Hou, X ; Hughes, R. E ; Inoue, Y ; Jackson, M. S ; Jogler, T ; Jóhannesson, G ; Johnson, A. S ; Kamae, T ; Kawano, T ; Knödlseder, J ; Kuss, M ; Lande, J ; Larsson, S ; Latronico, L ; Longo, F ; Loparco, F ; Lovellette, M. N ; Lubrano, P ; Mayer, M ; Mazziotta, M. N ; Mcenery, J. E ; Mehault, J ; Michelson, P. F ; Mitthumsiri, W ; Mizuno, T ; Moiseev, A. A ; Monte, C ; Monzani, M. E ; Morselli, A ; Moskalenko, I. V ; Murgia, S ; Nemmen, R ; Nuss, E ; Ohsugi, T ; Okumura, A ; Orienti, M ; Orlando, E ; Ormes, J. F ; Paneque, D ; Panetta, J. H ; Perkins, J. S ; Pesce-Rollins, M ; Piron, F ; Pivato, G ; Porter, T. A ; Rainò, S ; Rando, R ; Razzano, M ; Razzaque, S ; Reimer, A ; Reimer, O ; Ritz, S ; Roth, M ; Schaal, M ; Schulz, A ; Sgrò, C ; Siskind, E. J ; Spandre, G ; Spinelli, P ; Strong, A. W ; Takahashi, H ; Takeuchi, Y ; Thayer, J. G ; Thayer, J. B ; Thompson, D. J ; Tibaldo, L ; Tinivella, M ; Torres, D. F ; Tosti, G ; Troja, E ; Tronconi, V ; Usher, T. L ; Vandenbroucke, J ; Vasileiou, V ; Vianello, G ; Vitale, V ; Werner, M ; Winer, B. L ; Wood, K. S ; Wood, M ; Yang, Z
contributorSlac National Accelerator Lab., Menlo Park, Ca (United States) (Corporate Author)
ispartofPhysical Review Letters, 17 April 2014, Vol.112(15)
identifier
subjectAstronomy And Astrophysics ; Physics
descriptionAccurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA recently 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 harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. Here, we use the Fermi Large Area Telescope observations of the γ -ray emission from Earth’s limb for an indirect measurement of the local spectrum of CR protons in the energy range ~ 90 GeV – 6 TeV (derived from a photon energy range 15 GeV–1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index 2.68 ± 0.04 and 2.61 ± 0.08 above ~ 200 GeV , respectively.
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15Brigida, M
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17Buehler, R
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19Caliandro, G. A
20Cameron, R. A
21Caraveo, P. A
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23Charles, E
24Chaves, R. C. G
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26Chiang, J
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32Cutini, S
33Dalton, M
34D’ammando, F
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63Gustafsson, M
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65Hanabata, Y
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70Horan, D
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titleInferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb
description

Accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA recently 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 harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. Here, we use the Fermi Large Area Telescope observations of the γ -ray emission from Earth’s limb for an indirect measurement of the local spectrum of CR protons in the energy range ~ 90 GeV – 6 TeV (derived from a photon energy range 15 GeV–1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index 2.68 ± 0.04 and 2.61 ± 0.08 above ~ 200 GeV , respectively.

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titleInferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb
authorAckermann, M ; Ajello, M ; Albert, A ; Allafort, A ; Baldini, L ; Barbiellini, G ; Bastieri, D ; Bechtol, K ; Bellazzini, R ; Blandford, R. D ; Bloom, E. D ; Bonamente, E ; Bottacini, E ; Bouvier, A ; Brandt, T. J ; Brigida, M ; Bruel, P ; Buehler, R ; Buson, S ; Caliandro, G. A ; Cameron, R. A ; Caraveo, P. A ; Cecchi, C ; Charles, E ; Chaves, R. C. G ; Chekhtman, A ; Chiang, J ; Chiaro, G ; Ciprini, S ; Claus, R ; Cohen-Tanugi, J ; Conrad, J ; Cutini, S ; Dalton, M ; D’ammando, F ; de Angelis, A ; de Palma, F ; Dermer, C. D ; Digel, S. W ; Di Venere, L ; Do Couto E Silva, E ; Drell, P. S ; Drlica-Wagner, A ; Favuzzi, C ; Fegan, S. J ; Ferrara, E. C ; Focke, W. B ; Franckowiak, A ; Fukazawa, Y ; Funk, S ; Fusco, P ; Gargano, F ; Gasparrini, D ; Germani, S ; Giglietto, N ; Giordano, F ; Giroletti, M ; Glanzman, T ; Godfrey, G ; Gomez-Vargas, G. A ; Grenier, I. A ; Grove, J. E ; Guiriec, S ; Gustafsson, M ; Hadasch, D ; Hanabata, Y ; Harding, A. K ; Hayashida, M ; Hayashi, K ; Hewitt, J. W ; Horan, D ; Hou, X ; Hughes, R. E ; Inoue, Y ; Jackson, M. S ; Jogler, T ; Jóhannesson, G ; Johnson, A. S ; Kamae, T ; Kawano, T ; Knödlseder, J ; Kuss, M ; Lande, J ; Larsson, S ; Latronico, L ; Longo, F ; Loparco, F ; Lovellette, M. N ; Lubrano, P ; Mayer, M ; Mazziotta, M. N ; Mcenery, J. E ; Mehault, J ; Michelson, P. F ; Mitthumsiri, W ; Mizuno, T ; Moiseev, A. A ; Monte, C ; Monzani, M. E ; Morselli, A ; Moskalenko, I. V ; Murgia, S ; Nemmen, R ; Nuss, E ; Ohsugi, T ; Okumura, A ; Orienti, M ; Orlando, E ; Ormes, J. F ; Paneque, D ; Panetta, J. H ; Perkins, J. S ; Pesce-Rollins, M ; Piron, F ; Pivato, G ; Porter, T. A ; Rainò, S ; Rando, R ; Razzano, M ; Razzaque, S ; Reimer, A ; Reimer, O ; Ritz, S ; Roth, M ; Schaal, M ; Schulz, A ; Sgrò, C ; Siskind, E. J ; Spandre, G ; Spinelli, P ; Strong, A. W ; Takahashi, H ; Takeuchi, Y ; Thayer, J. G ; Thayer, J. B ; Thompson, D. J ; Tibaldo, L ; Tinivella, M ; Torres, D. F ; Tosti, G ; Troja, E ; Tronconi, V ; Usher, T. L ; Vandenbroucke, J ; Vasileiou, V ; Vianello, G ; Vitale, V ; Werner, M ; Winer, B. L ; Wood, K. S ; Wood, M ; Yang, Z
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80Knödlseder
81Kuss
82Lande
83Larsson
84Latronico
85Longo
86Loparco
87Lovellette
88Lubrano
89Mayer
90Mazziotta
91Mcenery
92Mehault
93Michelson
94Mitthumsiri
95Mizuno
96Moiseev
97Monte
98Monzani
99Morselli
100...
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0M
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5K
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7R. D
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9E
10T. J
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12S
13G. A
14R. A
15P. A
16C
17R. C. G
18J
19F
20C. D
21S. W
22P. S
23S. J
24E. C
25W. B
26Y
27N
28T
29I. A
30J. E
31A. K
32J. W
33X
34R. E
35M. S
36A. S
37M. N
38P. F
39W
40A. A
41M. E
42I. V
43J. F
44J. H
45J. S
46T. A
47O
48E. J
49A. W
50H
51J. G
52J. B
53D. J
54D. F
55V
56T. L
57B. L
58K. S
59Z
60Menlo Park, Ca
auinitM
auinit1M
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0Ackermann, M
1Ajello, M
2Albert, A
3Allafort, A
4Baldini, L
5Barbiellini, G
6Bastieri, D
7Bechtol, K
8Bellazzini, R
9Blandford, R. D
10Bloom, E. D
11Bonamente, E
12Bottacini, E
13Bouvier, A
14Brandt, T. J
15Brigida, M
16Bruel, P
17Buehler, R
18Buson, S
19Caliandro, G. A
20Cameron, R. A
21Caraveo, P. A
22Cecchi, C
23Charles, E
24Chaves, R. C. G
25Chekhtman, A
26Chiang, J
27Chiaro, G
28Ciprini, S
29Claus, R
30Cohen-Tanugi, J
31Conrad, J
32Cutini, S
33Dalton, M
34D’ammando, F
35de Angelis, A
36de Palma, F
37Dermer, C. D
38Digel, S. W
39Di Venere, L
40Do Couto E Silva, E
41Drell, P. S
42Drlica-Wagner, A
43Favuzzi, C
44Fegan, S. J
45Ferrara, E. C
46Focke, W. B
47Franckowiak, A
48Fukazawa, Y
49Funk, S
50Fusco, P
51Gargano, F
52Gasparrini, D
53Germani, S
54Giglietto, N
55Giordano, F
56Giroletti, M
57Glanzman, T
58Godfrey, G
59Gomez-Vargas, G. A
60Grenier, I. A
61Grove, J. E
62Guiriec, S
63Gustafsson, M
64Hadasch, D
65Hanabata, Y
66Harding, A. K
67Hayashida, M
68Hayashi, K
69Hewitt, J. W
70Horan, D
71Hou, X
72Hughes, R. E
73Inoue, Y
74Jackson, M. S
75Jogler, T
76Jóhannesson, G
77Johnson, A. S
78Kamae, T
79Kawano, T
80Knödlseder, J
81Kuss, M
82Lande, J
83Larsson, S
84Latronico, L
85Longo, F
86Loparco, F
87Lovellette, M. N
88Lubrano, P
89Mayer, M
90Mazziotta, M. N
91Mcenery, J. E
92Mehault, J
93Michelson, P. F
94Mitthumsiri, W
95Mizuno, T
96Moiseev, A. A
97Monte, C
98Monzani, M. E
99Morselli, A
100...
addauSlac National Accelerator Lab., Menlo Park, Ca
atitleInferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ -Ray Observations of Earth’s Limb
jtitlePhysical Review Letters
risdate20140417
volume112
issue15
issn0031-9007
eissn1079-7114
formatjournal
genrearticle
ristypeJOUR
abstract

Accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA recently 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 harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. Here, we use the Fermi Large Area Telescope observations of the γ -ray emission from Earth’s limb for an indirect measurement of the local spectrum of CR protons in the energy range ~ 90 GeV – 6 TeV (derived from a photon energy range 15 GeV–1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index 2.68 ± 0.04 and 2.61 ± 0.08 above ~ 200 GeV , respectively.

copUnited States
pubAmerican Physical Society (APS)
doi10.1103/PhysRevLett.112.151103
oafree_for_read
pages151103
date2014-04-17