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    Response of magnetotail twisting to variations in IMF By: A THEMIS case study 1–2 January 2009

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    Authors
    Pitkänen, T.
    Hamrin, M.
    Kullen, A.
    Maggiolo, R.
    Karlsson, T.
    Nilsson, H.
    Norqvist, P.
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    Discipline
    Physical sciences
    Subject
    Earth sciences
    Geophysics
    Inner magnetosphere
    Interplanetary magnetic fields
    Magnetotails
    Multi-point observation
    Solar wind-magnetosphere interactions
    Spatial response
    Temporal and spatial
    Temporal response
    Magnetosphere
    Audience
    Scientific
    Date
    2016
    Metadata
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    Description
    Theoretical considerations, observations, and simulations have shown that the By component of the interplanetary magnetic field (IMF) may cause twisting of the magnetotail. However, the fundamental issues, the temporal and spatial responses of the magnetotail in the twisting process, are still unresolved. We report unique multipoint observations of the response of the magnetotail to the variations in IMF By on 1–2 January 2009. For the first time, estimates of the tail twisting response time at different (Time History of Events and Macroscale Interactions during Substorms, THEMIS) distances in the same event are inferred. Using cross-correlation and timing analyses, we find that the tail twisting propagates from farther out toward the Earth and the response time increases significantly to the inner magnetosphere.
    Citation
    Pitkänen, T.; Hamrin, M.; Kullen, A.; Maggiolo, R.; Karlsson, T.; Nilsson, H.; Norqvist, P. (2016). Response of magnetotail twisting to variations in IMF By: A THEMIS case study 1–2 January 2009. , Geophysical Research Letters, Vol. 43, Issue 15, 7822-7830, DOI: 10.1002/2016GL070068.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4288
    doi: http://dx.doi.org/10.1002/2016GL070068
    scopus: 2-s2.0-84983509350
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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