Updated Limits on Anisotropy in Electron+Positron Cosmic Rays from CALET Data
The ISS-based Calorimetric Electron Telescope (CALET) is directly measuring the energy spectrum and direction distribution of electron+positron cosmic-rays up to 20 TeV. The electron+positron events measured by CALET have been analyzed for a possible dipole anisotropy, which could be a signature of nearby SNR such as Vela. The methods used to derive limits on the anisotropy from the reconstructed events are explained, including the procedures to compensate for non-uniform sky exposure and inhomogeneous detector acceptance. Upper limits on the dipole moment as a function of lower threshold energy, with doubled statistics compared to of previously shown results, are presented.
Authors
- G. A. de Nolfo (ORCID: https://orcid.org/0000-0002-3677-074X)
- M. Mori (ORCID: https://orcid.org/0000-0003-2921-1592)
- S. Ricciarini (ORCID: https://orcid.org/0000-0001-6176-3368)
- Wolfgang V Zober (ORCID: https://orcid.org/0000-0003-2961-8894)
- John Krizmanic (ORCID: https://orcid.org/0000-0002-9690-9352)
- Y. Katayose (ORCID: https://orcid.org/0000-0003-4836-7621)
- Kazunori Kohri (ORCID: https://orcid.org/0000-0003-3764-8612)
- N. Mōri (ORCID: https://orcid.org/0000-0003-2138-3787)
- C. Checchia (ORCID: https://orcid.org/0000-0003-1241-0413)
- S. Yanagita (ORCID: https://orcid.org/0000-0002-5837-8511)
- M. Ichimura
- K. Kasahara (ORCID: https://orcid.org/0000-0001-5611-3301)
- J. F. Ormes (ORCID: https://orcid.org/0000-0002-7220-6409)
- M. Mattiazzi (ORCID: https://orcid.org/0000-0003-3900-6816)
- T. Hams
- M. Bongi (ORCID: https://orcid.org/0000-0002-6050-1937)
- K. Hibino (ORCID: https://orcid.org/0000-0001-9259-6371)
- Y. Asaoka (ORCID: https://orcid.org/0000-0001-6440-933X)
- P. Papini (ORCID: https://orcid.org/0000-0003-4718-2895)
- S. Torii (ORCID: https://orcid.org/0000-0003-3363-3827)
- E. Berti (ORCID: https://orcid.org/0000-0002-5841-7760)
- Shoko Miyake (ORCID: https://orcid.org/0000-0002-3067-655X)
- L. Pacini (ORCID: https://orcid.org/0000-0001-6808-9396)
- K. Yamaoka (ORCID: https://orcid.org/0000-0003-3841-0980)
- A. Shiomi (ORCID: https://orcid.org/0000-0002-2616-0059)
- M. H. Israel (ORCID: https://orcid.org/0000-0002-8104-208X)
- J. Nishimura
- Misao Sasaki
- S. Ozawa (ORCID: https://orcid.org/0000-0002-6700-5530)
- T. G. Guzik (ORCID: https://orcid.org/0000-0001-6339-8261)
- G. Bigongiari (ORCID: https://orcid.org/0000-0003-3691-0826)
- P. Betti (ORCID: https://orcid.org/0000-0002-7097-165X)
- Y. Shimizu (ORCID: https://orcid.org/0000-0001-5473-5684)
- Kazuhiro Sakai (ORCID: https://orcid.org/0000-0002-9247-3010)
- A. Yoshida (ORCID: https://orcid.org/0000-0003-4049-137X)
- Holger Motz (ORCID: https://orcid.org/0000-0003-1918-2177)
- H. Fuke (ORCID: https://orcid.org/0000-0002-8071-3398)
- G. Castellini (ORCID: https://orcid.org/0000-0002-0177-0643)
- Ken Ebisawa (ORCID: https://orcid.org/0000-0002-5352-7178)
- W. R. Binns
- J. P. Wefel
- P. Brogi (ORCID: https://orcid.org/0000-0001-7953-0271)
- T. Terasawa (ORCID: https://orcid.org/0000-0003-2507-9803)
- C. Kato (ORCID: https://orcid.org/0000-0002-4913-8225)
- Norita Kawanaka (ORCID: https://orcid.org/0000-0001-8181-7511)
- B. F. Rauch (ORCID: https://orcid.org/0000-0002-1452-4142)
- H. Krawczynski (ORCID: https://orcid.org/0000-0002-1084-6507)
- Michela Negro (ORCID: https://orcid.org/0000-0002-6548-5622)
- F. Stolzi (ORCID: https://orcid.org/0000-0001-9266-8742)
- Anthony W. Ficklin
- K. Munakata (ORCID: https://orcid.org/0000-0002-2131-4100)
- Yosui Akaike (ORCID: https://orcid.org/0000-0002-9489-1515)
- A. Bruno (ORCID: https://orcid.org/0000-0001-5191-1662)
- S. Sugita (ORCID: https://orcid.org/0000-0002-3634-7095)
- А.А. Моисеев
- J. Kataoka (ORCID: https://orcid.org/0000-0003-2819-6415)
- Kazuyoshi Kobayashi (ORCID: https://orcid.org/0000-0003-1533-3476)
- M. L. Cherry (ORCID: https://orcid.org/0000-0003-2808-312X)
- Y. Kawakubo (ORCID: https://orcid.org/0000-0002-2064-3164)
- E. Vannuccini
- Ryuho Kataoka (ORCID: https://orcid.org/0000-0001-9400-1765)
- O. Adriani (ORCID: https://orcid.org/0000-0002-3592-0654)
- Kentaro Asano (ORCID: https://orcid.org/0000-0002-8107-3783)
- Kohei Yoshida (ORCID: https://orcid.org/0000-0003-0827-6223)
- S. Nakahira (ORCID: https://orcid.org/0000-0001-9307-046X)
- James W. Mitchell
- P. Maestro (ORCID: https://orcid.org/0000-0002-4193-1288)
- A. Messineo (ORCID: https://orcid.org/0000-0001-7551-5613)
- S. Gonzi (ORCID: https://orcid.org/0000-0003-4754-645X)
- G. Collazuol (ORCID: https://orcid.org/0000-0002-7876-6124)
- T. Sakamoto (ORCID: https://orcid.org/0009-0001-5972-8288)
- N. Cannady (ORCID: https://orcid.org/0000-0003-2916-6955)
- Y. Tsunesada (ORCID: https://orcid.org/0000-0001-9238-6817)
- Y. Uchihori
- П. Спиллантини
- P.S. Marrocchesi
- M. Takita
- A. Sulaj
- S. Okuno
- T. Tamura (ORCID: https://orcid.org/0009-0005-9123-8085)
Publication Details
- Published
- 2025-09-23
- DOI
- https://doi.org/10.22323/1.501.0100
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00