-
1
-
-
84861598107
-
-
C. Spiering, arXiv:0811.4747 [astro-ph]
-
C. Spiering, arXiv:0811.4747 [astro-ph].
-
-
-
-
2
-
-
33749513923
-
-
[IceCube Collaboration] arXiv:astro-ph/0604450
-
A. Achterberg et al. [IceCube Collaboration], Astropart. Phys. 26, 155 (2006), arXiv:astro-ph/0604450;
-
(2006)
Astropart. Phys.
, vol.26
, pp. 155
-
-
Achterberg, A.1
-
4
-
-
84861585527
-
-
S. R. Klein [IceCube Collaboration], arXiv:0807.0034 [physics.ins-det]
-
S. R. Klein [IceCube Collaboration], arXiv:0807.0034 [physics.ins-det].
-
-
-
-
5
-
-
33744807175
-
-
[arXiv:astro-ph/0602132]
-
F. Halzen, Eur. Phys. J. C 46, 669 (2006) [arXiv:astro-ph/0602132].
-
(2006)
Eur. Phys. J. C
, vol.46
, pp. 669
-
-
Halzen, F.1
-
6
-
-
0000317495
-
-
[Erratum-ibid. 271, 355 (1996)] [arXiv:hep-ph/9410384]
-
T. K. Gaisser, F. Halzen and T. Stanev, Phys. Rept. 258, 173 (1995) [Erratum-ibid. 271, 355 (1996)] [arXiv:hep-ph/9410384].
-
(1995)
Phys. Rept.
, vol.258
, pp. 173
-
-
Gaisser, T.K.1
Halzen, F.2
Stanev, T.3
-
13
-
-
84861585529
-
-
www.pha.jhu.edu/ bagger/talks/HEPAP.pdf.
-
-
-
-
14
-
-
84861624507
-
-
L. Anchordoqui and F. Halzen, arXiv:hep-ph/0510389
-
L. Anchordoqui and F. Halzen, arXiv:hep-ph/0510389.
-
-
-
-
18
-
-
84861624508
-
-
V. Barger et al., arXiv:0705.4396 [hep-ph]
-
V. Barger et al., arXiv:0705.4396 [hep-ph].
-
-
-
-
19
-
-
84861624506
-
-
P. Sommers and S. Westerhoff, arXiv:0802.1267 [astro-ph]
-
For a recent review of the cosmic ray problem, see P. Sommers and S. Westerhoff, arXiv:0802.1267 [astro-ph];
-
-
-
-
20
-
-
84861585528
-
-
A. M. Hillas, arXiv:astro-ph/0607109; V. Berezinsky, arXiv:0801.3028 [astro-ph]
-
A. M. Hillas, arXiv:astro-ph/0607109; V. Berezinsky, arXiv:0801.3028 [astro-ph].
-
-
-
-
21
-
-
40849124204
-
-
[HiRes Collaboration] [arXiv:astro-ph/0703099]
-
R. Abbasi et al. [HiRes Collaboration], Phys. Rev. Lett. 100, 101101 (2008) [arXiv:astro-ph/0703099];
-
(2008)
Phys. Rev. Lett.
, vol.100
, pp. 101101
-
-
Abbasi, R.1
-
22
-
-
49249109520
-
-
[Pierre Auger Collaboration] [arXiv:0806.4302 [astro-ph]
-
J. Abraham et al. [Pierre Auger Collaboration], Phys. Rev. Lett. 101, 061101 (2008) [arXiv:0806.4302 [astro-ph]].
-
(2008)
Phys. Rev. Lett.
, vol.101
, pp. 061101
-
-
Abraham, J.1
-
23
-
-
0000006630
-
-
The idea has been revisited over time by many aythors; see, for instance, F. Aharonian, L. O'C. Drury, & H.J. and Völk, Astron. Astrophys. 285, 645 (1994).
-
(1994)
Astron. Astrophys.
, vol.285
, pp. 645
-
-
Aharonian, F.1
O'c. Drury, L.2
Völk, H.J.3
-
25
-
-
0000739816
-
-
arXiv:astro-ph/9701231
-
E. Waxman, Phys. Rev. Lett. 75, 386 (1995), arXiv:astro-ph/9701231;
-
(1995)
Phys. Rev. Lett.
, vol.75
, pp. 386
-
-
Waxman, E.1
-
26
-
-
7544237736
-
-
arXiv:astro-ph/9802241
-
M. Vietri, Phys. Rev. Lett. 80, 3690 (1998), arXiv:astro-ph/9802241
-
(1998)
Phys. Rev. Lett.
, vol.80
, pp. 3690
-
-
Vietri, M.1
-
27
-
-
84861598077
-
-
M. Bottcher and C. D. Dermer, arXiv:astro-ph/9801027
-
M. Bottcher and C. D. Dermer, arXiv:astro-ph/9801027.
-
-
-
-
28
-
-
10444237969
-
-
Taormina Italy, arXiv:astro-ph/9707283
-
T. K. Gaisser, OECD Megascience Forum, Taormina, Italy, 1997, arXiv:astro-ph/9707283;
-
(1997)
OECD Megascience Forum
-
-
Gaisser, T.K.1
-
29
-
-
26944440506
-
-
[arXiv:astro-ph/0503229]
-
the discussion was recently revisited in Markus Ahlers, Luis A. Anchordoqui, Haim Goldberg, Francis Halzen, Andreas Ringwald, Thomas J. Weiler, Phys.Rev. D72, 023001 (2005) [arXiv:astro-ph/0503229].
-
(2005)
Phys.Rev.
, vol.D72
, pp. 023001
-
-
Ahlers, M.1
Anchordoqui, L.A.2
Goldberg, H.3
Halzen, F.4
Ringwald, A.5
Weiler, T.J.6
-
30
-
-
84861585530
-
-
H. Krawczynski et al., arXiv:0709.0704 [astro-ph]
-
H. Krawczynski et al., arXiv:0709.0704 [astro-ph].
-
-
-
-
36
-
-
34047234914
-
-
arXiv:astro-ph/0611691
-
A. A. Abdo et al., Astrophys. J. 658 L33-L36 (2007) arXiv:astro-ph/ 0611691.
-
(2007)
Astrophys. J.
, vol.658
-
-
Abdo, A.A.1
-
38
-
-
84861598079
-
-
J. Albert et al., arXiv/astro-ph 0801.2391
-
J. Albert et al., arXiv/astro-ph 0801.2391.
-
-
-
-
39
-
-
84861625359
-
-
S. Gabici, F. .A. Aharonian, arXiv:0705.3011
-
For a recent discussion; see S. Gabici, F. .A. Aharonian, arXiv:0705.3011.
-
-
-
-
40
-
-
84861625358
-
-
A. A. Abdo et al., arXiv:0805.0417 [astro-ph]
-
A. A. Abdo et al., arXiv:0805.0417 [astro-ph].
-
-
-
-
42
-
-
51849107374
-
-
arXiv:astro-ph/0803.0314
-
For details of the calculation; see F. Halzen, A. Kappes and A. O'Murchadha, Phys. Rev. D 78, 063004 (2008), arXiv:astro-ph/0803.0314;
-
(2008)
Phys. Rev. D
, vol.78
, pp. 063004
-
-
Halzen, F.1
Kappes, A.2
O'murchadha, A.3
-
43
-
-
34548774063
-
-
arXiv:astro-ph/0612699
-
see also L. Anchordoqui, F. Halzen, T. Montaruli and A. O'Murchadha, Phys. Rev. D 76, 067301 (2007), arXiv:astro-ph/0612699;
-
(2007)
Phys. Rev. D
, vol.76
, pp. 067301
-
-
Anchordoqui, L.1
Halzen, F.2
Montaruli, T.3
O'murchadha, A.4
-
45
-
-
36849079255
-
-
arXiv:astro-ph/0705.1723
-
F. Halzen and A. O'Murchadha, Phys. Rev. D 76, 123003 (2007), arXiv:astro-ph/0705.1723.
-
(2007)
Phys. Rev. D
, vol.76
, pp. 123003
-
-
Halzen, F.1
O'murchadha, A.2
-
46
-
-
4243459610
-
-
[arXiv:hep-ph/9807282]
-
E. Waxman and J. N. Bahcall, Phys. Rev. D 59, 023002 (1999) [arXiv:hep-ph/9807282].
-
(1999)
Phys. Rev. D
, vol.59
, pp. 023002
-
-
Waxman, E.1
Bahcall, J.N.2
-
47
-
-
84861585558
-
-
[IceCube Collaboration] (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul
-
G. C. Hill [IceCube Collaboration], Prepared for 30th International Cosmic Ray Conference (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul 2007;
-
(2007)
Prepared for 30th International Cosmic Ray Conference
-
-
Hill, G.C.1
-
48
-
-
84861585559
-
-
[IceCube Collaboration] (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul
-
L. Gerhardt [IceCube Collaboration], Prepared for 30th International Cosmic Ray Conference (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul 2007.
-
(2007)
Prepared for 30th International Cosmic Ray Conference
-
-
Gerhardt, L.1
-
50
-
-
0037565264
-
-
[arXiv:astro-ph/0210249]
-
for an earlier suggestion using beamed emission see R. J. Protheroe, A. C. Donea and A. Reimer, Astropart. Phys. 19, 559 (2003) [arXiv:astro-ph/0210249] .
-
(2003)
Astropart. Phys.
, vol.19
, pp. 559
-
-
Protheroe, R.J.1
Donea, A.C.2
Reimer, A.3
-
52
-
-
0001869964
-
-
J. E. Grindlay, H. F. Helmken, R. Hanbury Brown, J. Davis, and L. R. Allen, Astrophys. J. 197, L9 (1975)
-
(1975)
Astrophys. J.
, vol.197
-
-
Grindlay, J.E.1
Helmken, H.F.2
Hanbury Brown, R.3
Davis, J.4
Allen, L.R.5
-
54
-
-
0002152663
-
-
[JANZOS Collaboration]
-
W. H. Allen et al. [JANZOS Collaboration], Astropart. Phys. 1, 269 (1993).
-
(1993)
Astropart. Phys.
, vol.1
, pp. 269
-
-
Allen, W.H.1
-
55
-
-
0039860528
-
-
See e.g., M. Punch et al., Nature 358, 477 (1992);
-
(1992)
Nature
, vol.358
, pp. 477
-
-
Punch, M.1
-
56
-
-
0002688884
-
-
[HEGRA Collaboration], [arXiv:astro-ph/9612058]
-
S. M. Bradbury et al. [HEGRA Collaboration], Astron. Astrophys. 320, L5 (1997) [arXiv:astro-ph/9612058]
-
(1997)
Astron. Astrophys.
, vol.320
-
-
Bradbury, S.M.1
-
57
-
-
17744417174
-
-
[HEGRA Collaboration] [arXiv:astro-ph/0205499]
-
F. Aharonian et al. [HEGRA Collaboration], Astron. Astrophys. 393, 89 (2002) [arXiv:astro-ph/0205499]
-
(2002)
Astron. Astrophys.
, vol.393
, pp. 89
-
-
Aharonian, F.1
-
58
-
-
0038082170
-
-
[VERITAS collaboration] [arXiv:astro-ph/0207506]
-
D. Petry et al. [VERITAS collaboration], Astrophys. J. 580, 104 (2002) [arXiv:astro-ph/0207506]
-
(2002)
Astrophys. J.
, vol.580
, pp. 104
-
-
Petry, D.1
-
61
-
-
84861598105
-
-
J. Albert et al., arXiv/astro-ph 0806.0988
-
J. Albert et al., arXiv/astro-ph 0806.0988.
-
-
-
-
62
-
-
26244433260
-
-
[H.E.S.S. Collaboration]
-
F. Aharonian et al. [H.E.S.S. Collaboration], Astron. Astrophys. 441 (2005) 465.
-
(2005)
Astron. Astrophys.
, vol.441
, pp. 465
-
-
Aharonian, F.1
-
64
-
-
42449097010
-
-
J. Abraham et al., Science 318 (2007) 939.
-
(2007)
Science
, vol.318
, pp. 939
-
-
Abraham, J.1
-
67
-
-
84861624537
-
-
A. Cuoco and S. Hannestad [arXiv:0712.1830]
-
A. Cuoco and S. Hannestad [arXiv:0712.1830]
-
-
-
-
69
-
-
84861585557
-
-
J. K. Becker and P. L. Biermann, arXiv:0805.1498 [astro-ph]
-
J. K. Becker and P. L. Biermann, arXiv:0805.1498 [astro-ph]
-
-
-
-
70
-
-
84861624536
-
-
M. Kachelriess, S. Ostapchenko and R. Tomas, arXiv:0805.2608 [astro-ph]
-
M. Kachelriess, S. Ostapchenko and R. Tomas, arXiv:0805.2608 [astro-ph].
-
-
-
|