Zobrazeno 1 - 10
of 17
pro vyhledávání: '"P. N. Mager"'
Autor:
K. Yamamoto, A. V. Rubtsov, D. V. Kostarev, P. N. Mager, D. Yu. Klimushkin, M. Nosé, A. Matsuoka, K. Asamura, Y. Miyoshi, S. Yokota, S. Kasahara, T. Hori, K. Keika, Y. Kasahara, A. Kumamoto, F. Tsuchiya, M. Shoji, S. Nakamura, I. Shinohara
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 8, Pp n/a-n/a (2024)
Abstract We present the first direct evidence of an in situ excitation of drift‐compressional waves driven by drift resonance with ring current protons in the magnetosphere. Compressional Pc4–5 waves with frequencies of 4–12 mHz were observed b
Externí odkaz:
https://doaj.org/article/44009355bb344e94b396c093eb6481c9
Publikováno v:
Annales Geophysicae, Vol 34, Pp 241-248 (2016)
Many independent observations have shown that resonant field line Pc5 pulsations (typical periods of about several minutes) are preferably excited inside the auroral oval. Consideration of the most evident interpretation schemes shows that there is
Externí odkaz:
https://doaj.org/article/4d275f45ff1a4da9be204532770fba24
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1099-1106 (2012)
This paper is concerned with the spatial structure and temporal evolution of the azimuthally small scale Alfvén wave generated by a sudden impulse concentrated on a given magnetic shell. At the outset, both poloidal and toroidal components are pr
Externí odkaz:
https://doaj.org/article/cd5ae4be8e374e0daff017b21ea96cc1
Publikováno v:
Annales Geophysicae, Vol 28, Pp 1499-1509 (2010)
A case study of SuperDARN observations of Pc5 Alfvén ULF wave activity generated in the immediate aftermath of a modest-intensity substorm expansion phase onset is presented. Observations from the Hankasalmi radar reveal that the wave had a perio
Externí odkaz:
https://doaj.org/article/bf8cc66b15a24b3d8176f85279cb5148
Publikováno v:
Annales Geophysicae, Vol 27, Pp 3875-3882 (2009)
This paper is devoted to analytical and numerical studies of the parallel structure of poloidal Alfvén waves in a finite pressure plasma. The effects of finite-beta plasma are especially essential near the magnetospheric equator, where an opaque
Externí odkaz:
https://doaj.org/article/d7fa0d7ee5184f138b560edbf6cd0051
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2053-2059 (2008)
We analyzed the spectral-polarized characteristics of Pc5 ULF waves observed on 17 September 2000 after the 03:20:25 UT substorm onset with the satellites GOES 8 and 10 located east and west of the onset location. In the course of the event, the w
Externí odkaz:
https://doaj.org/article/05e0dcb9777a4e9694e00ae1f87c9da8
Autor:
P. N. Mager, D. Yu. Klimushkin
Publikováno v:
Annales Geophysicae, Vol 26, Pp 1653-1663 (2008)
The generation of a high-m Alfvén wave by substorm injected energetic particles in the magnetosphere is studied. The wave is supposed to be emitted by an alternating current created by the drifting particle cloud or ring current inhomogeneity. It
Externí odkaz:
https://doaj.org/article/af654ce8a75a4394a5fc364e18f9dcf3
Autor:
S. Schäfer, K. H. Glassmeier, P. T. I. Eriksson, P. N. Mager, V. Pierrard, K. H. Fornaçon, L. G. Blomberg
Publikováno v:
Annales Geophysicae, Vol 26, Pp 1805-1817 (2008)
A case study of a poloidal ULF pulsation near the dayside plasmapause is presented based on Cluster observations of magnetic and electric fields. The pulsation is detected close to the magnetic equatorial plane at L shells L=[4.4, 4.6] and oscill
Externí odkaz:
https://doaj.org/article/8b87ba16ef7343fdac75eee2ada9a134
Autor:
P. N. Mager, D. Yu. Klimushkin
Publikováno v:
Annales Geophysicae, Vol 24, Pp 2429-2433 (2006)
Through the combined action of the field line curvature and finite plasma pressure in some regions of the magnetosphere (plasmapause, ring current) there can exist global poloidal Alfvén modes standing both along field lines and across magnetic sh
Externí odkaz:
https://doaj.org/article/2b222e42c16c4fe9b62b55f9f6c40c23
Publikováno v:
Annales Geophysicae, Vol 24, Pp 1077-1084 (2006)
This paper deals with the spatial structure of zero azimuthal wave number ULF oscillations in a 1-D inhomogeneous multi-component plasma when a finite ion gyrofrequency is taken into account. Such oscillations may occur in the terrestrial magnetosp
Externí odkaz:
https://doaj.org/article/dbc7167638244b2aa3e07b75aaa5b8fd