| Title: |
Time Variation in the TeV Cosmic Ray Anisotropy with IceCube and Energy Dependence of the Solar Dipole |
| Authors: |
Schroeder, Frank G.; IceCube Collaboration; Abbasi, Rasha; Ackermann, Markus; Adams, Jenni; Agarwalla, Sanjib Kumar; Aguilar, Juanan; Ahlers, Markus; Alameddine, Jean-Marco; Ali, Shoukat; Amin, Najia Moureen Binte; Andeen, Karen G.; Argüelles, Carlos; Ashida, Yosuke; Athanasiadou, Sofia; Axani, Spencer; Babu, Rishi; Bai, Xinhua; Baines-Holmes, Joe; Balagopal V, Aswathi; Barwick, Steven W.; Bash, Simeon; Basu, Vedant; Bay, Ryan; Beatty, James; Becker Tjus, Julia; Behrens, Philipp; Beise, Jakob; Bellenghi, Chiara; Benkel, Bruno; BenZvi, Segev; Berley, David; Bernardini, Elisa; Besson, Dave; Blaufuss, Erik; Bloom, Lucas; Blot, Summer; Bodo, Ilya; Bontempo, Federico; Book Motzkin, Julia; Boscolo Meneguolo, Caterina; BOSER, Sebastian; Botner, Olga; Bottcher, Jakob; Braun, Jim; Brinson, Bennett; Brisson-Tsavoussis, Zoe; Burley, Ryan T.; Butterfield, Delaney; Campana, Michael; Carloni, Kiara; Carpio, Jose; Chattopadhyay, Sharmistha; Chau, Thien Nhan; Chen, Zheyang; Chirkin, Dmitry; Choi, Seowon; Clark, Brian; Coleman, Alan; Coleman, Peter John Cusack; Collin, Gabriel; Coloma Borja, Diego Alberto; Connolly, Amy; Conrad, Janet; Corley, Rebecca; Cowen, Doug; DE CLERCQ, Catherine; DeLaunay, James; Delgado, Diyaselis; Delmeulle, Thomas; Deng, Shuyang; de Vries, Krijn; de Wasseige, Gwenhaël; DeYoung, Tyce; DiKerby, Stephen; Dittmer, Markus; Domi, Alba; Draper, Lincoln; Dueser, Lasse; Durnford, Daniel; Dutta, Kaustav; DuVernois, Michael; Ehrhardt, Thomas; Eidenschink, Leonhard; Eimer, Anna; Eller, Philipp; Ellinger, Enrico; Elsässer, Dominik; Engel, Ralph; Erpenbeck, Hannah; Esmail, Waleed; Eulig, Steven; Evans, John; Evenson, Paul; Fan, Kwok Lung; Fang, Ke; Farrag, Kareem Ramadan; Fazely, Ali; Fedynitch, Anatoli; Feigl, Nora; Finley, Chad |
| Source: |
ISSN: 1824-8039. |
| Publisher Information: |
Scuola Internazionale Superiore di Studi Avanzati |
| Publication Year: |
2025 |
| Collection: |
KITopen (Karlsruhe Institute of Technologie) |
| Subject Terms: |
ddc:530; Physics; info:eu-repo/classification/ddc/530 |
| Description: |
There is an observed anisotropy in the arrival direction distribution of cosmic rays in the TeV-PeV regime with variations on the scale of one part in a thousand. While the origin of this anisotropy is an open question, a possible factor is cosmic-ray interactions with interstellar and heliospheric magnetic fields. These magnetic fields may change over time - for example, due to changes in solar activity throughout its 11-year solar cycle. The cosmic-ray anisotropy can reflect these time-dependent magnetic fields. In addition to these speculative sources, there are several known sources of time variation in this anisotropy, such as the Compton-Getting Effect from the Earth’s orbital motion. We discuss a preliminary study with limited statistics of time variation undertaken by the IceCube Neutrino Observatory, including a measurement of the Compton-Getting Effect as well as a general, model-independent search for other time variations. Further, we use the Compton-Getting Effect to present a preliminary measurement of the cosmic-ray spectral index as a function of energy below the knee. |
| Document Type: |
article in journal/newspaper; conference object |
| File Description: |
application/pdf |
| Language: |
English |
| ISSN: |
1824-8039 |
| Relation: |
Proceedings of Science (PoC); info:eu-repo/semantics/altIdentifier/issn/1824-8039; https://publikationen.bibliothek.kit.edu/1000190511; https://publikationen.bibliothek.kit.edu/1000190511/174942149; https://doi.org/10.5445/IR/1000190511 |
| DOI: |
10.5445/IR/1000190511 |
| Availability: |
https://publikationen.bibliothek.kit.edu/1000190511; https://publikationen.bibliothek.kit.edu/1000190511/174942149; https://doi.org/10.5445/IR/1000190511 |
| Rights: |
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.de ; info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.28EA0AC9 |
| Database: |
BASE |