Galactic Cosmic Ray increase associated with an interplanetary magnetic cloud observed by HAWC
- the HAWC Collaboration,
- Alejandro Lara(Author),
- K. P. Arunbabu(Author),
- Tatiana Niembro(Author),
- A. U. Abeysekara(Author),
- A. Albert(Author)
- Universidad Nacional Autónoma de México,
- St. Paul's College Kalamassery,
- Smithsonian Astrophysical Observatory,
- University of Utah,
- Los Alamos National Laboratory,
- Universidad Autonoma de Chiapas
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
Publication metrics
Metrics
SciVal
Author count
135
SciVal
Paper percentile
20
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.
Publication Information
Output type
Research Output:
Chapter in Book/Report/Conference proceeding
Conference contribution
Original language
EnglishPublication milestones
- Published - 18/03/2022
Publication status
Published - 18/03/2022
Volume
395Publication series
- Publisher name: Sissa Medialab Srl
Publication series name: Proceedings of Science
Publication IDs
- Scopus: 85143746763
Host publication title
Galactic Cosmic Ray increase associated with an interplanetary magnetic cloud observed by HAWCAccess to documents
Related Event
Title
37th International Cosmic Ray Conference, ICRC 2021
Event type
ConferenceDate
12/07/2021 - 23/07/2021Location
Virtual, BerlinGermany
Funding Details
We thank Alejandro Salazar Méndez for the creation Figure 1. We acknowledge the support from: the US National Science Foundation (NSF); the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) program of Los
Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONACyT), México, grants 271051, 232656, 260378, 179588, 254964, 258865, 243290, 132197, A1-S-46288, A1-S-22784, cátedras 873, 1563, 341, 323, Red HAWC, México; DGAPA-UNAM grants IG101320, IN111716-3, IN111419, IA102019, IN110621, IN110521; VIEP-BUAP; PIFI 2012, 2013, PRO-FOCIE 2014, 2015; the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory; Polish Science Centre grant, DEC-2017/27/B/ST9/02272; Coordinación de la Investigación Científica de la Universidad Michoacana; Royal Society - Newton Advanced Fellowship 180385; Generalitat Va-lenciana, grant CIDEGENT/2018/034; Chulalongkorn University’s CUniverse (CUAASC) grant; Coordinación General Académica e Innovación (CGAI-UdeG), PRODEP-SEP UDG-CA-499; Institute of Cosmic Ray Research (ICRR), University of Tokyo, H.F. acknowledges support by NASA under award number 80GSFC21M0002. We also acknowledge the significant contributions over many years of Stefan Westerhoff, Gaurang Yodh and Arnulfo Zepeda Dominguez, all deceased members of the HAWC collaboration. Thanks to Scott Delay, Luciano Díaz and Eduardo Murrieta for technical support.
We thank Alejandro Salazar Méndez for the creation Figure 1. We acknowledge the support from: the US National Science Foundation (NSF); the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) program of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONACyT), México, grants 271051, 232656, 260378, 179588, 254964, 258865, 243290, 132197, A1-S-46288, A1-S-22784, cátedras 873, 1563, 341, 323, Red HAWC, México; DGAPA-UNAM grants IG101320, IN111716-3, IN111419, IA102019, IN110621, IN110521; VIEP-BUAP; PIFI 2012, 2013, PROFOCIE 2014, 2015; the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory; Polish Science Centre grant, DEC-2017/27/B/ST9/02272; Coordinación de la Investigación Científica de la Universidad Michoacana; Royal Society - Newton Advanced Fellowship 180385; Generalitat Valenciana, grant CIDEGENT/2018/034; Chulalongkorn University's CUniverse (CUAASC) grant; Coordinación General Académica e Innovación (CGAI-UdeG), PRODEP-SEP UDG-CA-499; Institute of Cosmic Ray Research (ICRR), University of Tokyo, H.F. acknowledges support by NASA under award number 80GSFC21M0002. We also acknowledge the significant contributions over many years of Stefan Westerhoff, Gaurang Yodh and Arnulfo Zepeda Dominguez, all deceased members of the HAWC collaboration. Thanks to Scott Delay, Luciano Díaz and Eduardo Murrieta for technical support.
FundersFunding numbers
CUAASC
-Chulalongkorn University's CUniverse
-Chulalongkorn University's CUniverse
-Coordinación General Académica e Innovación
PRODEP-SEP UDG-CA-499
Coordinación de la Investigación Científica de la Universidad Michoacana
-Institute of Geophysics
-Planetary Physics
-Polish Science Centre
DEC-2017/27/B/ST9/02272
US Department of Energy Office of High-Energy Physics
-University of Wisconsin Alumni Research Foundation
-VIEP-BUAP
-NSF
-NASA
80GSFC21M0002
NASA
-LDRD
-LANL
-Royal Society
180385
Royal Society
-CONACYT
271051, A1-S-46288, 254964, 258865, A1-S-22784, 260378, 132197, 179588, 232656, 243290
CONACYT
-GVA
CIDEGENT/2018/034
GVA
-University of Tokyo
-DGAPA, UNAM
IN111419, IG101320, IN111716-3, IN110621, IA102019, IN110521
DGAPA, UNAM
-