The measurement of the anisotropies of cosmic ray arrival direction provides important informations on the propagation mechanisms and on the identification of their sources. In this paper we report the observation of anisotropy regions at different angular scales. In particular, the observation of a possible anisotropy on scales between similar to 10 degrees and similar to 30 degrees suggests the presence of unknown features of the magnetic fields the charged cosmic rays propagate through, as well as potential contributions of nearby sources to the total flux of cosmic rays. Evidence of new weaker few-degree excesses throughout the sky region 195 degrees <= R.A. <= 315 degrees is reported for the first time.

Observation of CR Anisotropy with ARGO-YBJ / Iuppa, R; ARGO-YBJ, Collaboration; Di Sciascio, G. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 375:5(2012), pp. 05200801-05200804. [10.1088/1742-6596/375/1/052008]

Observation of CR Anisotropy with ARGO-YBJ

Iuppa, R;
2012

Abstract

The measurement of the anisotropies of cosmic ray arrival direction provides important informations on the propagation mechanisms and on the identification of their sources. In this paper we report the observation of anisotropy regions at different angular scales. In particular, the observation of a possible anisotropy on scales between similar to 10 degrees and similar to 30 degrees suggests the presence of unknown features of the magnetic fields the charged cosmic rays propagate through, as well as potential contributions of nearby sources to the total flux of cosmic rays. Evidence of new weaker few-degree excesses throughout the sky region 195 degrees <= R.A. <= 315 degrees is reported for the first time.
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Iuppa, R; ARGO-YBJ, Collaboration; Di Sciascio, G
Observation of CR Anisotropy with ARGO-YBJ / Iuppa, R; ARGO-YBJ, Collaboration; Di Sciascio, G. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 375:5(2012), pp. 05200801-05200804. [10.1088/1742-6596/375/1/052008]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/162591
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