Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

P. Adamson, C. Andreopoulos, D. S. Ayres, C. Backhouse, G. Barr, W. L. Barrett, M. Bishai, A. Blake, B. Bock, G. J. Bock, D. J. Boehnlein, D. Bogert, C. Bower, S. Budd, S. Cavanaugh, D. Cherdack, S. Childress, B. C. Choudhary, J. H. Cobb, J. A.B. CoelhoS. J. Coleman, L. Corwin, D. Cronin-Hennessy, I. Z. Danko, J. K. De Jong, N. E. Devenish, M. V. Diwan, M. Dorman, C. O. Escobar, J. J. Evans, E. Falk, G. J. Feldman, M. V. Frohne, H. R. Gallagher, A. Godley, R. A. Gomes, M. C. Goodman, P. Gouffon, R. Gran, N. Grant, E. W. Grashorn, K. Grzelak, A. Habig, D. Harris, P. G. Harris, J. Hartnell, R. Hatcher, A. Himmel, A. Holin, X. Huang

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at a depth of 2070 mwe using 83.54 million cosmic ray muons accumulated over 1857.91 live-days. The shadow of the moon was detected at the 5.6 σ level and the shadow of the sun at the 3.8 σ level using a log-likelihood search in celestial coordinates. The moon shadow was used to quantify the absolute astrophysical pointing of the detector to be 0.17 ± 0.12°. Hints of interplanetary magnetic field effects were observed in both the sun and moon shadow.

Original languageEnglish (US)
Pages (from-to)457-466
Number of pages10
JournalAstroparticle Physics
Volume34
Issue number6
DOIs
StatePublished - Jan 1 2011

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natural satellites
cosmic rays
sun
detectors
primary cosmic rays
interplanetary magnetic fields
muons
astrophysics

Keywords

  • Cosmic rays
  • Interplanetary magnetic field
  • Moon shadow
  • Muons
  • Sun shadow

Cite this

Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon. / Adamson, P.; Andreopoulos, C.; Ayres, D. S.; Backhouse, C.; Barr, G.; Barrett, W. L.; Bishai, M.; Blake, A.; Bock, B.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Bower, C.; Budd, S.; Cavanaugh, S.; Cherdack, D.; Childress, S.; Choudhary, B. C.; Cobb, J. H.; Coelho, J. A.B.; Coleman, S. J.; Corwin, L.; Cronin-Hennessy, D.; Danko, I. Z.; De Jong, J. K.; Devenish, N. E.; Diwan, M. V.; Dorman, M.; Escobar, C. O.; Evans, J. J.; Falk, E.; Feldman, G. J.; Frohne, M. V.; Gallagher, H. R.; Godley, A.; Gomes, R. A.; Goodman, M. C.; Gouffon, P.; Gran, R.; Grant, N.; Grashorn, E. W.; Grzelak, K.; Habig, A.; Harris, D.; Harris, P. G.; Hartnell, J.; Hatcher, R.; Himmel, A.; Holin, A.; Huang, X.

In: Astroparticle Physics, Vol. 34, No. 6, 01.01.2011, p. 457-466.

Research output: Contribution to journalArticle

Adamson, P, Andreopoulos, C, Ayres, DS, Backhouse, C, Barr, G, Barrett, WL, Bishai, M, Blake, A, Bock, B, Bock, GJ, Boehnlein, DJ, Bogert, D, Bower, C, Budd, S, Cavanaugh, S, Cherdack, D, Childress, S, Choudhary, BC, Cobb, JH, Coelho, JAB, Coleman, SJ, Corwin, L, Cronin-Hennessy, D, Danko, IZ, De Jong, JK, Devenish, NE, Diwan, MV, Dorman, M, Escobar, CO, Evans, JJ, Falk, E, Feldman, GJ, Frohne, MV, Gallagher, HR, Godley, A, Gomes, RA, Goodman, MC, Gouffon, P, Gran, R, Grant, N, Grashorn, EW, Grzelak, K, Habig, A, Harris, D, Harris, PG, Hartnell, J, Hatcher, R, Himmel, A, Holin, A & Huang, X 2011, 'Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon', Astroparticle Physics, vol. 34, no. 6, pp. 457-466. https://doi.org/10.1016/j.astropartphys.2010.10.010
Adamson, P. ; Andreopoulos, C. ; Ayres, D. S. ; Backhouse, C. ; Barr, G. ; Barrett, W. L. ; Bishai, M. ; Blake, A. ; Bock, B. ; Bock, G. J. ; Boehnlein, D. J. ; Bogert, D. ; Bower, C. ; Budd, S. ; Cavanaugh, S. ; Cherdack, D. ; Childress, S. ; Choudhary, B. C. ; Cobb, J. H. ; Coelho, J. A.B. ; Coleman, S. J. ; Corwin, L. ; Cronin-Hennessy, D. ; Danko, I. Z. ; De Jong, J. K. ; Devenish, N. E. ; Diwan, M. V. ; Dorman, M. ; Escobar, C. O. ; Evans, J. J. ; Falk, E. ; Feldman, G. J. ; Frohne, M. V. ; Gallagher, H. R. ; Godley, A. ; Gomes, R. A. ; Goodman, M. C. ; Gouffon, P. ; Gran, R. ; Grant, N. ; Grashorn, E. W. ; Grzelak, K. ; Habig, A. ; Harris, D. ; Harris, P. G. ; Hartnell, J. ; Hatcher, R. ; Himmel, A. ; Holin, A. ; Huang, X. / Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon. In: Astroparticle Physics. 2011 ; Vol. 34, No. 6. pp. 457-466.
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AU - Andreopoulos, C.

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AU - Backhouse, C.

AU - Barr, G.

AU - Barrett, W. L.

AU - Bishai, M.

AU - Blake, A.

AU - Bock, B.

AU - Bock, G. J.

AU - Boehnlein, D. J.

AU - Bogert, D.

AU - Bower, C.

AU - Budd, S.

AU - Cavanaugh, S.

AU - Cherdack, D.

AU - Childress, S.

AU - Choudhary, B. C.

AU - Cobb, J. H.

AU - Coelho, J. A.B.

AU - Coleman, S. J.

AU - Corwin, L.

AU - Cronin-Hennessy, D.

AU - Danko, I. Z.

AU - De Jong, J. K.

AU - Devenish, N. E.

AU - Diwan, M. V.

AU - Dorman, M.

AU - Escobar, C. O.

AU - Evans, J. J.

AU - Falk, E.

AU - Feldman, G. J.

AU - Frohne, M. V.

AU - Gallagher, H. R.

AU - Godley, A.

AU - Gomes, R. A.

AU - Goodman, M. C.

AU - Gouffon, P.

AU - Gran, R.

AU - Grant, N.

AU - Grashorn, E. W.

AU - Grzelak, K.

AU - Habig, A.

AU - Harris, D.

AU - Harris, P. G.

AU - Hartnell, J.

AU - Hatcher, R.

AU - Himmel, A.

AU - Holin, A.

AU - Huang, X.

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N2 - The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at a depth of 2070 mwe using 83.54 million cosmic ray muons accumulated over 1857.91 live-days. The shadow of the moon was detected at the 5.6 σ level and the shadow of the sun at the 3.8 σ level using a log-likelihood search in celestial coordinates. The moon shadow was used to quantify the absolute astrophysical pointing of the detector to be 0.17 ± 0.12°. Hints of interplanetary magnetic field effects were observed in both the sun and moon shadow.

AB - The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at a depth of 2070 mwe using 83.54 million cosmic ray muons accumulated over 1857.91 live-days. The shadow of the moon was detected at the 5.6 σ level and the shadow of the sun at the 3.8 σ level using a log-likelihood search in celestial coordinates. The moon shadow was used to quantify the absolute astrophysical pointing of the detector to be 0.17 ± 0.12°. Hints of interplanetary magnetic field effects were observed in both the sun and moon shadow.

KW - Cosmic rays

KW - Interplanetary magnetic field

KW - Moon shadow

KW - Muons

KW - Sun shadow

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JO - Astroparticle Physics

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