Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC

S. Akiyama; R. Alfaro; C. Alvarez; J. R. Angeles Camacho; J. C. Arteaga-Velázquez; K. P. Arunbabu; D. Avila Rojas; H. A.Ayala Solares; E. Belmont-Moreno; K. S. Caballero-Mora; T. Capistrán; A. Carraminana; S. Casanova; P. Colin-Farias; U. Cotti; J. Cotzomi; E. De La Fuente; C. De León; R. Diaz Hernandez; C. Espinoza; N. Fraija; A. Galván-Gámez; D. Garcia; J. A. García-González; F. Garfias; M. M. González; J. A. Goodman; J. P. Harding; B. Hona; D. Huang; F. Hueyotl-Zahuantitla; P. Hüntemeyer; A. Iriarte; V. Joshi; D. Kieda; G. J. Kunde; A. Lara; H. León Vargas; G. Luis-Raya; K. Malone; J. Martínez-Castro; J. A. Matthews; P. Miranda-Romagnoli; E. Moreno; A. Nayerhoda; L. Nellen; M. Newbold; T. Niembro; T. Nieves-Chinchilla; R. Noriega-Papaqui; E. G. Pérez-Pérez; L. Preisser; C. D. Rho; J. Ryan; H. Salazar; F. Salesa Greus; A. Sandoval; R. W. Springer; I. Torres; F. Urena-Mena; L. Villasenor; A. Zepeda

doi:10.3847/1538-4357/abc344

Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC

S. Akiyama, R. Alfaro, C. Alvarez, J. R. Angeles Camacho, J. C. Arteaga-Velázquez, K. P. Arunbabu, D. Avila Rojas, H. A.Ayala Solares, E. Belmont-Moreno, K. S. Caballero-Mora, T. Capistrán, A. Carraminana, S. Casanova, P. Colin-Farias, U. Cotti, J. Cotzomi, E. De La Fuente, C. De León, R. Diaz Hernandez, C. EspinozaN. Fraija, A. Galván-Gámez, D. Garcia, J. A. García-González, F. Garfias, M. M. González, J. A. Goodman, J. P. Harding, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, V. Joshi, D. Kieda, G. J. Kunde, A. Lara, H. León Vargas, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, E. Moreno, A. Nayerhoda, L. Nellen, M. Newbold, T. Niembro, T. Nieves-Chinchilla, R. Noriega-Papaqui, E. G. Pérez-Pérez, L. Preisser, C. D. Rho, J. Ryan, H. Salazar, F. Salesa Greus, A. Sandoval, R. W. Springer, I. Torres, F. Urena-Mena, L. Villasenor, A. Zepeda

Centro de Investigación en Computación (CIC)

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Abstract

We report the ground-level detection of a Galactic cosmic-ray (GCR) flux enhancement lasting ∼17 hr and associated with the passage of a magnetic flux rope (MFR) over the Earth. The MFR was associated with a slow coronal mass ejection (CME) caused by the eruption of a filament on 2016 October 9. Due to the quiet conditions during the eruption and the lack of interactions during the interplanetary CME transport to the Earth, the associated MFR preserved its configuration and reached the Earth with a strong magnetic field, low density, and a very low turbulence level compared to local background, thus generating the ideal conditions to redirect and guide GCRs (in the ∼8-60 GV rigidity range) along the magnetic field of the MFR. An important negative B Z component inside the MFR caused large disturbances in the geomagnetic field and a relatively strong geomagnetic storm. However, these disturbances are not the main factors behind the GCR enhancement. Instead, we found that the major factor was the alignment between the MFR axis and the asymptotic direction of the observer.

Original language	English
Article number	73
Journal	Astrophysical Journal
Volume	905
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/abc344
State	Published - 10 Dec 2020

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Akiyama, S., Alfaro, R., Alvarez, C., Angeles Camacho, J. R., Arteaga-Velázquez, J. C., Arunbabu, K. P., Avila Rojas, D., Solares, H. A. A., Belmont-Moreno, E., Caballero-Mora, K. S., Capistrán, T., Carraminana, A., Casanova, S., Colin-Farias, P., Cotti, U., Cotzomi, J., De La Fuente, E., De León, C., Hernandez, R. D., ... Zepeda, A. (2020). Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC. Astrophysical Journal, 905(1), Article 73. https://doi.org/10.3847/1538-4357/abc344

@article{b4b523d37893442ba178aa9767a2f25e,

title = "Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC",

abstract = "We report the ground-level detection of a Galactic cosmic-ray (GCR) flux enhancement lasting ∼17 hr and associated with the passage of a magnetic flux rope (MFR) over the Earth. The MFR was associated with a slow coronal mass ejection (CME) caused by the eruption of a filament on 2016 October 9. Due to the quiet conditions during the eruption and the lack of interactions during the interplanetary CME transport to the Earth, the associated MFR preserved its configuration and reached the Earth with a strong magnetic field, low density, and a very low turbulence level compared to local background, thus generating the ideal conditions to redirect and guide GCRs (in the ∼8-60 GV rigidity range) along the magnetic field of the MFR. An important negative B Z component inside the MFR caused large disturbances in the geomagnetic field and a relatively strong geomagnetic storm. However, these disturbances are not the main factors behind the GCR enhancement. Instead, we found that the major factor was the alignment between the MFR axis and the asymptotic direction of the observer.",

author = "S. Akiyama and R. Alfaro and C. Alvarez and {Angeles Camacho}, {J. R.} and Arteaga-Vel{\'a}zquez, {J. C.} and Arunbabu, {K. P.} and {Avila Rojas}, D. and Solares, {H. A.Ayala} and E. Belmont-Moreno and Caballero-Mora, {K. S.} and T. Capistr{\'a}n and A. Carraminana and S. Casanova and P. Colin-Farias and U. Cotti and J. Cotzomi and {De La Fuente}, E. and {De Le{\'o}n}, C. and Hernandez, {R. Diaz} and C. Espinoza and N. Fraija and A. Galv{\'a}n-G{\'a}mez and D. Garcia and Garc{\'i}a-Gonz{\'a}lez, {J. A.} and F. Garfias and Gonz{\'a}lez, {M. M.} and Goodman, {J. A.} and Harding, {J. P.} and B. Hona and D. Huang and F. Hueyotl-Zahuantitla and P. H{\"u}ntemeyer and A. Iriarte and V. Joshi and D. Kieda and Kunde, {G. J.} and A. Lara and Vargas, {H. Le{\'o}n} and G. Luis-Raya and K. Malone and J. Mart{\'i}nez-Castro and Matthews, {J. A.} and P. Miranda-Romagnoli and E. Moreno and A. Nayerhoda and L. Nellen and M. Newbold and T. Niembro and T. Nieves-Chinchilla and R. Noriega-Papaqui and P{\'e}rez-P{\'e}rez, {E. G.} and L. Preisser and Rho, {C. D.} and J. Ryan and H. Salazar and {Salesa Greus}, F. and A. Sandoval and Springer, {R. W.} and I. Torres and F. Urena-Mena and L. Villasenor and A. Zepeda",

year = "2020",

month = dec,

day = "10",

doi = "10.3847/1538-4357/abc344",

language = "Ingl{\'e}s",

volume = "905",

journal = "Astrophysical Journal",

issn = "0004-637X",

number = "1",

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Akiyama, S, Alfaro, R, Alvarez, C, Angeles Camacho, JR, Arteaga-Velázquez, JC, Arunbabu, KP, Avila Rojas, D, Solares, HAA, Belmont-Moreno, E, Caballero-Mora, KS, Capistrán, T, Carraminana, A, Casanova, S, Colin-Farias, P, Cotti, U, Cotzomi, J, De La Fuente, E, De León, C, Hernandez, RD, Espinoza, C, Fraija, N, Galván-Gámez, A, Garcia, D, García-González, JA, Garfias, F, González, MM, Goodman, JA, Harding, JP, Hona, B, Huang, D, Hueyotl-Zahuantitla, F, Hüntemeyer, P, Iriarte, A, Joshi, V, Kieda, D, Kunde, GJ, Lara, A, Vargas, HL, Luis-Raya, G, Malone, K, Martínez-Castro, J, Matthews, JA, Miranda-Romagnoli, P, Moreno, E, Nayerhoda, A, Nellen, L, Newbold, M, Niembro, T, Nieves-Chinchilla, T, Noriega-Papaqui, R, Pérez-Pérez, EG, Preisser, L, Rho, CD, Ryan, J, Salazar, H, Salesa Greus, F, Sandoval, A, Springer, RW, Torres, I, Urena-Mena, F, Villasenor, L & Zepeda, A 2020, 'Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC', Astrophysical Journal, vol. 905, no. 1, 73. https://doi.org/10.3847/1538-4357/abc344

TY - JOUR

T1 - Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC

AU - Akiyama, S.

AU - Alfaro, R.

AU - Alvarez, C.

AU - Angeles Camacho, J. R.

AU - Arteaga-Velázquez, J. C.

AU - Arunbabu, K. P.

AU - Avila Rojas, D.

AU - Solares, H. A.Ayala

AU - Belmont-Moreno, E.

AU - Caballero-Mora, K. S.

AU - Capistrán, T.

AU - Carraminana, A.

AU - Casanova, S.

AU - Colin-Farias, P.

AU - Cotti, U.

AU - Cotzomi, J.

AU - De La Fuente, E.

AU - De León, C.

AU - Hernandez, R. Diaz

AU - Espinoza, C.

AU - Fraija, N.

AU - Galván-Gámez, A.

AU - Garcia, D.

AU - García-González, J. A.

AU - Garfias, F.

AU - González, M. M.

AU - Goodman, J. A.

AU - Harding, J. P.

AU - Hona, B.

AU - Huang, D.

AU - Hueyotl-Zahuantitla, F.

AU - Hüntemeyer, P.

AU - Iriarte, A.

AU - Joshi, V.

AU - Kieda, D.

AU - Kunde, G. J.

AU - Lara, A.

AU - Vargas, H. León

AU - Luis-Raya, G.

AU - Malone, K.

AU - Martínez-Castro, J.

AU - Matthews, J. A.

AU - Miranda-Romagnoli, P.

AU - Moreno, E.

AU - Nayerhoda, A.

AU - Nellen, L.

AU - Newbold, M.

AU - Niembro, T.

AU - Nieves-Chinchilla, T.

AU - Noriega-Papaqui, R.

AU - Pérez-Pérez, E. G.

AU - Preisser, L.

AU - Rho, C. D.

AU - Ryan, J.

AU - Salazar, H.

AU - Salesa Greus, F.

AU - Sandoval, A.

AU - Springer, R. W.

AU - Torres, I.

AU - Urena-Mena, F.

AU - Villasenor, L.

AU - Zepeda, A.

PY - 2020/12/10

Y1 - 2020/12/10

N2 - We report the ground-level detection of a Galactic cosmic-ray (GCR) flux enhancement lasting ∼17 hr and associated with the passage of a magnetic flux rope (MFR) over the Earth. The MFR was associated with a slow coronal mass ejection (CME) caused by the eruption of a filament on 2016 October 9. Due to the quiet conditions during the eruption and the lack of interactions during the interplanetary CME transport to the Earth, the associated MFR preserved its configuration and reached the Earth with a strong magnetic field, low density, and a very low turbulence level compared to local background, thus generating the ideal conditions to redirect and guide GCRs (in the ∼8-60 GV rigidity range) along the magnetic field of the MFR. An important negative B Z component inside the MFR caused large disturbances in the geomagnetic field and a relatively strong geomagnetic storm. However, these disturbances are not the main factors behind the GCR enhancement. Instead, we found that the major factor was the alignment between the MFR axis and the asymptotic direction of the observer.

AB - We report the ground-level detection of a Galactic cosmic-ray (GCR) flux enhancement lasting ∼17 hr and associated with the passage of a magnetic flux rope (MFR) over the Earth. The MFR was associated with a slow coronal mass ejection (CME) caused by the eruption of a filament on 2016 October 9. Due to the quiet conditions during the eruption and the lack of interactions during the interplanetary CME transport to the Earth, the associated MFR preserved its configuration and reached the Earth with a strong magnetic field, low density, and a very low turbulence level compared to local background, thus generating the ideal conditions to redirect and guide GCRs (in the ∼8-60 GV rigidity range) along the magnetic field of the MFR. An important negative B Z component inside the MFR caused large disturbances in the geomagnetic field and a relatively strong geomagnetic storm. However, these disturbances are not the main factors behind the GCR enhancement. Instead, we found that the major factor was the alignment between the MFR axis and the asymptotic direction of the observer.

UR - http://www.scopus.com/inward/record.url?scp=85098259435&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/abc344

DO - 10.3847/1538-4357/abc344

M3 - Artículo

AN - SCOPUS:85098259435

SN - 0004-637X

VL - 905

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 73

ER -

Interplanetary Magnetic Flux Rope Observed at Ground Level by HAWC

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