Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder

M. Armano; H. Audley; J. Baird; S. Benella; P. Binetruy; M. Born; D. Bortoluzzi; E. Castelli; A. Cavalleri; A. Cesarini; A. M. Cruise; K. Danzmann; M. De Deus Silva; I. Diepholz; G. Dixon; R. Dolesi; M. Fabi; L. Ferraioli; V. Ferroni; N. Finetti; E. D. Fitzsimons; M. Freschi; L. Gesa; F. Gibert; D. Giardini; R. Giusteri; C. Grimani; J. Grzymisch; I. Harrison; G. Heinzel; M. Hewitson; D. Hollington; D. Hoyland; M. Hueller; H. Inchauspé; O. Jennrich; P. Jetzer; N. Karnesis; B. Kaune; N. Korsakova; C. J. Killow; K. Kudela; M. Laurenza; J. A. Lobo; I. Lloro; L. Liu; J. P. López-Zaragoza; R. Maarschalkerweerd; D. Mance; N. Meshksar; V. Martín; L. Martin-Polo; J. Martino; F. Martin-Porqueras; I. Mateos; P. W. McNamara; J. Mendes; L. Mendes; M. Nofrarias; S. Paczkowski; M. Perreur-Lloyd; A. Petiteau; P. Pivato; E. Plagnol; J. Ramos-Castro; J. Reiche; D. I. Robertson; F. Rivas; G. Russano; J. Slutsky; C. F. Sopuerta; T. Sumner; D. Telloni; D. Texier; J. I. Thorpe; D. Vetrugno; M. Villani; S. Vitale; G. Wanner; H. Ward; P. Wass; W. J. Weber; L. Wissel; A. Wittchen; P. Zweifel

doi:10.3847/1538-4357/ab0c99

Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder

M. Armano
, H. Audley
, J. Baird
, S. Benella
, P. Binetruy
, M. Born
, D. Bortoluzzi
, E. Castelli
, A. Cavalleri
, A. Cesarini
, A. M. Cruise
, K. Danzmann
, M. De Deus Silva
, I. Diepholz
, G. Dixon
, R. Dolesi
, M. Fabi
, L. Ferraioli
, V. Ferroni
, N. Finetti

E. D. Fitzsimons, M. Freschi, L. Gesa, F. Gibert, D. Giardini, R. Giusteri, C. Grimani, J. Grzymisch, I. Harrison, G. Heinzel, M. Hewitson, D. Hollington, D. Hoyland, M. Hueller, H. Inchauspé, O. Jennrich, P. Jetzer, N. Karnesis, B. Kaune, N. Korsakova, C. J. Killow, K. Kudela, M. Laurenza, J. A. Lobo, I. Lloro, L. Liu, J. P. López-Zaragoza, R. Maarschalkerweerd, D. Mance, N. Meshksar, V. Martín, L. Martin-Polo, J. Martino, F. Martin-Porqueras, I. Mateos, P. W. McNamara, J. Mendes, L. Mendes, M. Nofrarias, S. Paczkowski, M. Perreur-Lloyd, A. Petiteau, P. Pivato, E. Plagnol, J. Ramos-Castro, J. Reiche, D. I. Robertson, F. Rivas, G. Russano, J. Slutsky, C. F. Sopuerta, T. Sumner, D. Telloni, D. Texier, J. I. Thorpe, D. Vetrugno, M. Villani, S. Vitale, G. Wanner, H. Ward, P. Wass, W. J. Weber, L. Wissel, A. Wittchen, P. Zweifel

ESAC campus
Leibniz Universität Hannover
Imperial College London
University of Urbino Carlo Bo
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Laboratoire de Probabilités et Modèles Aléatoires
Università di Trento
Fondazione Bruno Kessler
University of Birmingham
ETH Zurich
Università Dell'Aquila
Royal Observatory
Campus UAB
ESTEC - European Space Research and Technology Centre
European Space Agency / ESOC
Physik-Institut der Universität Zürich
University of Glasgow
Nuclear Physics Institute ASCR
Istituto di Astrofisica e Planetologia Spaziali (IAPS)
Universidad Politecnica de Catalunia
Institut d’Estudis Espacials de Catalunya (IEEC)
NASA Goddard Space Flight Center

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Non-recurrent short-term variations of the galactic cosmic-ray (GCR) flux above 70 MeV n ^-1 were observed between 2016 February 18 and 2017 July 3 on board the European Space Agency LISA Pathfinder (LPF) mission orbiting around the Lagrange point L1 at 1.5 ×10 ⁶ km from Earth. The energy dependence of three Forbush decreases is studied and reported here. A comparison of these observations with others carried out in space down to the energy of a few tens of MeV n ^-1 shows that the same GCR flux parameterization applies to events of different intensity during the main phase. FD observations in L1 with LPF and geomagnetic storm occurrence are also presented. Finally, the characteristics of GCR flux non-recurrent variations (peaks and depressions) of duration <2 days and their association with interplanetary structures are investigated. It is found that, most likely, plasma compression regions between subsequent corotating high-speed streams cause peaks, while heliospheric current sheet crossing causes the majority of the depressions.

Original language	English
Article number	167
Journal	Astrophysical Journal
Volume	874
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ab0c99
Publication status	Published - 1 Apr 2019
Externally published	Yes

Keywords

Sun: heliosphere
cosmic rays
instrumentation: interferometers
interplanetary medium
solar-terrestrial relations

Access to Document

10.3847/1538-4357/ab0c99

Cite this

Armano, M., Audley, H., Baird, J., Benella, S., Binetruy, P., Born, M., Bortoluzzi, D., Castelli, E., Cavalleri, A., Cesarini, A., Cruise, A. M., Danzmann, K., Silva, M. D. D., Diepholz, I., Dixon, G., Dolesi, R., Fabi, M., Ferraioli, L., Ferroni, V., ... Zweifel, P. (2019). Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder. Astrophysical Journal, 874(2), Article 167. https://doi.org/10.3847/1538-4357/ab0c99

@article{eed7faee5dba4c97a736883b7a558c0e,

title = "Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder",

abstract = " Non-recurrent short-term variations of the galactic cosmic-ray (GCR) flux above 70 MeV n -1 were observed between 2016 February 18 and 2017 July 3 on board the European Space Agency LISA Pathfinder (LPF) mission orbiting around the Lagrange point L1 at 1.5 ×10 6 km from Earth. The energy dependence of three Forbush decreases is studied and reported here. A comparison of these observations with others carried out in space down to the energy of a few tens of MeV n -1 shows that the same GCR flux parameterization applies to events of different intensity during the main phase. FD observations in L1 with LPF and geomagnetic storm occurrence are also presented. Finally, the characteristics of GCR flux non-recurrent variations (peaks and depressions) of duration <2 days and their association with interplanetary structures are investigated. It is found that, most likely, plasma compression regions between subsequent corotating high-speed streams cause peaks, while heliospheric current sheet crossing causes the majority of the depressions.",

keywords = "Sun: heliosphere, cosmic rays, instrumentation: interferometers, interplanetary medium, solar-terrestrial relations",

author = "M. Armano and H. Audley and J. Baird and S. Benella and P. Binetruy and M. Born and D. Bortoluzzi and E. Castelli and A. Cavalleri and A. Cesarini and Cruise, \{A. M.\} and K. Danzmann and Silva, \{M. De Deus\} and I. Diepholz and G. Dixon and R. Dolesi and M. Fabi and L. Ferraioli and V. Ferroni and N. Finetti and Fitzsimons, \{E. D.\} and M. Freschi and L. Gesa and F. Gibert and D. Giardini and R. Giusteri and C. Grimani and J. Grzymisch and I. Harrison and G. Heinzel and M. Hewitson and D. Hollington and D. Hoyland and M. Hueller and H. Inchausp{\'e} and O. Jennrich and P. Jetzer and N. Karnesis and B. Kaune and N. Korsakova and Killow, \{C. J.\} and K. Kudela and M. Laurenza and Lobo, \{J. A.\} and I. Lloro and L. Liu and L{\'o}pez-Zaragoza, \{J. P.\} and R. Maarschalkerweerd and D. Mance and N. Meshksar and V. Mart{\'i}n and L. Martin-Polo and J. Martino and F. Martin-Porqueras and I. Mateos and McNamara, \{P. W.\} and J. Mendes and L. Mendes and M. Nofrarias and S. Paczkowski and M. Perreur-Lloyd and A. Petiteau and P. Pivato and E. Plagnol and J. Ramos-Castro and J. Reiche and Robertson, \{D. I.\} and F. Rivas and G. Russano and J. Slutsky and Sopuerta, \{C. F.\} and T. Sumner and D. Telloni and D. Texier and Thorpe, \{J. I.\} and D. Vetrugno and M. Villani and S. Vitale and G. Wanner and H. Ward and P. Wass and Weber, \{W. J.\} and L. Wissel and A. Wittchen and P. Zweifel",

year = "2019",

month = apr,

day = "1",

doi = "10.3847/1538-4357/ab0c99",

language = "English",

volume = "874",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Armano, M, Audley, H, Baird, J, Benella, S, Binetruy, P, Born, M, Bortoluzzi, D, Castelli, E, Cavalleri, A, Cesarini, A, Cruise, AM, Danzmann, K, Silva, MDD, Diepholz, I, Dixon, G, Dolesi, R, Fabi, M, Ferraioli, L, Ferroni, V, Finetti, N, Fitzsimons, ED, Freschi, M, Gesa, L, Gibert, F, Giardini, D, Giusteri, R, Grimani, C, Grzymisch, J, Harrison, I, Heinzel, G, Hewitson, M, Hollington, D, Hoyland, D, Hueller, M, Inchauspé, H, Jennrich, O, Jetzer, P, Karnesis, N, Kaune, B, Korsakova, N, Killow, CJ, Kudela, K, Laurenza, M, Lobo, JA, Lloro, I, Liu, L, López-Zaragoza, JP, Maarschalkerweerd, R, Mance, D, Meshksar, N, Martín, V, Martin-Polo, L, Martino, J, Martin-Porqueras, F, Mateos, I, McNamara, PW, Mendes, J, Mendes, L, Nofrarias, M, Paczkowski, S, Perreur-Lloyd, M, Petiteau, A, Pivato, P, Plagnol, E, Ramos-Castro, J, Reiche, J, Robertson, DI, Rivas, F, Russano, G, Slutsky, J, Sopuerta, CF, Sumner, T, Telloni, D, Texier, D, Thorpe, JI, Vetrugno, D, Villani, M, Vitale, S, Wanner, G, Ward, H, Wass, P, Weber, WJ, Wissel, L, Wittchen, A & Zweifel, P 2019, 'Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder', Astrophysical Journal, vol. 874, no. 2, 167. https://doi.org/10.3847/1538-4357/ab0c99

TY - JOUR

T1 - Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder

AU - Armano, M.

AU - Audley, H.

AU - Baird, J.

AU - Benella, S.

AU - Binetruy, P.

AU - Born, M.

AU - Bortoluzzi, D.

AU - Castelli, E.

AU - Cavalleri, A.

AU - Cesarini, A.

AU - Cruise, A. M.

AU - Danzmann, K.

AU - Silva, M. De Deus

AU - Diepholz, I.

AU - Dixon, G.

AU - Dolesi, R.

AU - Fabi, M.

AU - Ferraioli, L.

AU - Ferroni, V.

AU - Finetti, N.

AU - Fitzsimons, E. D.

AU - Freschi, M.

AU - Gesa, L.

AU - Gibert, F.

AU - Giardini, D.

AU - Giusteri, R.

AU - Grimani, C.

AU - Grzymisch, J.

AU - Harrison, I.

AU - Heinzel, G.

AU - Hewitson, M.

AU - Hollington, D.

AU - Hoyland, D.

AU - Hueller, M.

AU - Inchauspé, H.

AU - Jennrich, O.

AU - Jetzer, P.

AU - Karnesis, N.

AU - Kaune, B.

AU - Korsakova, N.

AU - Killow, C. J.

AU - Kudela, K.

AU - Laurenza, M.

AU - Lobo, J. A.

AU - Lloro, I.

AU - Liu, L.

AU - López-Zaragoza, J. P.

AU - Maarschalkerweerd, R.

AU - Mance, D.

AU - Meshksar, N.

AU - Martín, V.

AU - Martin-Polo, L.

AU - Martino, J.

AU - Martin-Porqueras, F.

AU - Mateos, I.

AU - McNamara, P. W.

AU - Mendes, J.

AU - Mendes, L.

AU - Nofrarias, M.

AU - Paczkowski, S.

AU - Perreur-Lloyd, M.

AU - Petiteau, A.

AU - Pivato, P.

AU - Plagnol, E.

AU - Ramos-Castro, J.

AU - Reiche, J.

AU - Robertson, D. I.

AU - Rivas, F.

AU - Russano, G.

AU - Slutsky, J.

AU - Sopuerta, C. F.

AU - Sumner, T.

AU - Telloni, D.

AU - Texier, D.

AU - Thorpe, J. I.

AU - Vetrugno, D.

AU - Villani, M.

AU - Vitale, S.

AU - Wanner, G.

AU - Ward, H.

AU - Wass, P.

AU - Weber, W. J.

AU - Wissel, L.

AU - Wittchen, A.

AU - Zweifel, P.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - Non-recurrent short-term variations of the galactic cosmic-ray (GCR) flux above 70 MeV n -1 were observed between 2016 February 18 and 2017 July 3 on board the European Space Agency LISA Pathfinder (LPF) mission orbiting around the Lagrange point L1 at 1.5 ×10 6 km from Earth. The energy dependence of three Forbush decreases is studied and reported here. A comparison of these observations with others carried out in space down to the energy of a few tens of MeV n -1 shows that the same GCR flux parameterization applies to events of different intensity during the main phase. FD observations in L1 with LPF and geomagnetic storm occurrence are also presented. Finally, the characteristics of GCR flux non-recurrent variations (peaks and depressions) of duration <2 days and their association with interplanetary structures are investigated. It is found that, most likely, plasma compression regions between subsequent corotating high-speed streams cause peaks, while heliospheric current sheet crossing causes the majority of the depressions.

AB - Non-recurrent short-term variations of the galactic cosmic-ray (GCR) flux above 70 MeV n -1 were observed between 2016 February 18 and 2017 July 3 on board the European Space Agency LISA Pathfinder (LPF) mission orbiting around the Lagrange point L1 at 1.5 ×10 6 km from Earth. The energy dependence of three Forbush decreases is studied and reported here. A comparison of these observations with others carried out in space down to the energy of a few tens of MeV n -1 shows that the same GCR flux parameterization applies to events of different intensity during the main phase. FD observations in L1 with LPF and geomagnetic storm occurrence are also presented. Finally, the characteristics of GCR flux non-recurrent variations (peaks and depressions) of duration <2 days and their association with interplanetary structures are investigated. It is found that, most likely, plasma compression regions between subsequent corotating high-speed streams cause peaks, while heliospheric current sheet crossing causes the majority of the depressions.

KW - Sun: heliosphere

KW - cosmic rays

KW - instrumentation: interferometers

KW - interplanetary medium

KW - solar-terrestrial relations

U2 - 10.3847/1538-4357/ab0c99

DO - 10.3847/1538-4357/ab0c99

M3 - Article

AN - SCOPUS:85064462701

SN - 0004-637X

VL - 874

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 167

ER -

Forbush Decreases and <2 Day GCR Flux Non-recurrent Variations Studied with LISA Pathfinder

Abstract

Keywords

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