Galactic Cosmic Ray increase associated with an interplanetary magnetic cloud observed by HAWC

Lara A, Arunbabu KP, Niembro T, Abeysekara AU, Albert A, Alfaro R, Alvarez C, Álvarez JD, Angeles Camacho JR, Arteaga-Velázquez JC, Avila Rojas D, Ayala Solares HA, Babu R, Baghmanyan V, Barber AS, Becerra Gonzalez J, Belmont-Moreno E, BenZvi SY, Berley D, Brisbois C, Caballero-Mora KS, Capistrán T, Carramiñana A, Casanova S, Chaparro-Amaro O, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, de León C, Diaz-Cruz L, Diaz Hernandez R, Díaz-Vélez JC, Dingus BL, Durocher M, DuVernois MA, Ellsworth RW, Engel K, Espinoza C, Fan KL, Fang K, Fernández Alonso M, Fick B, Fleischhack H, Flores JL, Fraija NI, Garcia D, García-González JA, García-Luna JL, García-Torales G, Garfias F, Giacinti G, Goksu H, González MM, Goodman JA, Harding JP, Hernandez S, Herzog I, Hinton J, Hona B, Huang D, Hueyotl-Zahuantitla F, Hui CM, Humensky B, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Jhee H, Joshi V, Kieda D, Kunde GJ, Kunwar S, Lee J, Lee WH, Lennarz D, León Vargas H, Linnemann J, Longinotti AL, López-Coto R, Luis-Raya G, Lundeen J, Malone K, Marandon V, Martinez O, Martinez-Castellanos I, Martínez-Huerta H, Martínez-Castro J, Matthews JA, McEnery J, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafá M, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Olivera-Nieto L, Omodei N, Peisker A, Pérez Araujo Y, Pérez-Pérez EG, Rho CD, Rivière C, Rosa-Gonzalez D, Ruiz-Velasco E, Ryan J, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Serna-Franco J, Sinnis G, Smith AJ, Springer RW, Surajbali P, Taboada I, Tanner M, Tollefson K, Torres I, Torres-Escobedo R, Turner R, Ureña-Mena F, Villaseñor L, Wang X, Watson IJ, Weisgarber T, Werner F, Willox E, Wood J, Yodh GB, Zepeda A, Zhou H (2022)


Publication Type: Conference contribution

Publication year: 2022

Journal

Publisher: Sissa Medialab Srl

Book Volume: 395

Conference Proceedings Title: Proceedings of Science

Event location: Virtual

Abstract

We present the observation of an anomalous increment of the galactic cosmic ray (GCR) flux observed by the HAWC array during October 2016. We propose that this anisotropy of the GCR flux was caused by a magnetic flux rope (MFR) i. e., by the helicoidal magnetic field of an interplanetary coronal mass ejection observed at 1 AU at the same time. We computed the trajectory of protons with energy in the range of 10 to 60 GeV, traveling inside the helicoidal magnetic field observed in situ. The direction of these particles changes towards the axis of the MFR resulting in an anisotropy of the GCR flux along this axis. This model shows that the alignment between the MFR axis and the HAWC's asymptotic direction, combined with the high sensitivity of HAWC, allowed us to observe the effect of the passage of the MFR on the GCR flux. We present the HAWC observation associated with the passage of the MFR as well as the heliospheric circumstances around such phenomenon.

Authors with CRIS profile

Involved external institutions

University of Seoul (UOS) / 서울시립대학교 KR Korea, Republic of (KR) University of Maryland US United States (USA) (US) Michigan Technological University US United States (USA) (US) University of Utah US United States (USA) (US) Universidad de Guadalajara (UDEG) MX Mexico (MX) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) IT Italy (IT) Institute of Nuclear Physics PAN / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego PAN PL Poland (PL) Shanghai Jiao Tong University / 上海交通大学 CN China (CN) Pennsylvania State University (Penn State) US United States (USA) (US) National Aeronautics and Space Administration (NASA) US United States (USA) (US) University of New Hampshire US United States (USA) (US) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) MX Mexico (MX) Los Alamos National Laboratory US United States (USA) (US) National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) MX Mexico (MX) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics DE Germany (DE) University of Rochester (UR) US United States (USA) (US) Universidad Autónoma de Chiapas (UNACH) MX Mexico (MX) Universidad de Monterrey (UDEM) MX Mexico (MX) National Institute of Astrophysics, Optics and Electronics / Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) MX Mexico (MX) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo MX Mexico (MX) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla MX Mexico (MX) University of New Mexico (UNM) / Universidad de Nuevo México US United States (USA) (US) Georgia Institute of Technology US United States (USA) (US) Tecnológico de Monterrey (ITESM) MX Mexico (MX) Michigan State University US United States (USA) (US) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México MX Mexico (MX) Smithsonian Institution US United States (USA) (US) Universidad Politécnica de Pachuca (UPP) MX Mexico (MX) University of Wisconsin - Madison US United States (USA) (US) Center for Research and Advanced Studies of the National Polytechnic Institute / Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) MX Mexico (MX) University of California Irvine US United States (USA) (US) Stanford University US United States (USA) (US)

How to cite

APA:

Lara, A., Arunbabu, K.P., Niembro, T., Abeysekara, A.U., Albert, A., Alfaro, R.,... Zhou, H. (2022). Galactic Cosmic Ray increase associated with an interplanetary magnetic cloud observed by HAWC. In Proceedings of Science. Virtual: Sissa Medialab Srl.

MLA:

Lara, Alejandro, et al. "Galactic Cosmic Ray increase associated with an interplanetary magnetic cloud observed by HAWC." Proceedings of the 37th International Cosmic Ray Conference, ICRC 2021, Virtual Sissa Medialab Srl, 2022.

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