Search: WFRF:(Khotyaintsev Yuri V.)
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Whistler-mode waves...
Whistler-mode waves inside flux pileup region : Structured or unstructured?
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Fu, H. S. (author)
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Cao, J. B. (author)
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Cully, C. M. (author)
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- Khotyaintsev, Yuri V. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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- Vaivads, Andris (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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Angelopoulos, V. (author)
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Zong, Q. -G (author)
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Santolik, O. (author)
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Macusova, E. (author)
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- André, Mats (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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Liu, W. L. (author)
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Lu, H. Y. (author)
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Zhou, M. (author)
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Huang, S. Y. (author)
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Zhima, Z. (author)
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(creator_code:org_t)
- Blackwell Publishing, 2014
- 2014
- English.
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In: Journal of Geophysical Research - Space Physics. - : Blackwell Publishing. - 2169-9380 .- 2169-9402. ; 119:11, s. 9089-9100
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- During reconnection, a flux pileup region (FPR) is formed behind a dipolarization front in an outflow jet. Inside the FPR, the magnetic field magnitude and Bz component increase and the whistler-mode waves are observed frequently. As the FPR convects toward the Earth during substorms, it is obstructed by the dipolar geomagnetic field to form a near-Earth FPR. Unlike the structureless emissions inside the tail FPR, we find that the whistler-mode waves inside the near-Earth FPR can exhibit a discrete structure similar to chorus. Both upper band and lower band chorus are observed, with the upper band having a larger propagation angle (and smaller wave amplitude) than the lower band. Most chorus elements we observed are rising-tone type, but some are falling-tone type. We notice that the rising-tone chorus can evolve into falling-tone chorus within <3s. One of the factors that may explain why the waves are unstructured inside the tail FPR but become discrete inside the near-Earth FPR is the spatial inhomogeneity of magnetic field: we find that such inhomogeneity is small inside the near-Earth FPR but large inside the tail FPR.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- flux pileup region
- dipolarization front
- whistler
- chorus
- structure
- magnetic field inhomogeneity
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Fu, H. S.
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Cao, J. B.
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Cully, C. M.
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Khotyaintsev, Yu ...
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Vaivads, Andris
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Angelopoulos, V.
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show more...
-
Zong, Q. -G
-
Santolik, O.
-
Macusova, E.
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André, Mats
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Liu, W. L.
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Lu, H. Y.
-
Zhou, M.
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Huang, S. Y.
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Zhima, Z.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Journal of Geoph ...
- By the university
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Royal Institute of Technology
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Uppsala University