Magnetospheric lion roars
Baumjohann, W. ; Georgescu, E. ; Fornacon, K.-H. ; Auster, H. U. ; Treumann, R. A. ; Haerendel, G.
Springer
Published 2000
Springer
Published 2000
| ISSN: |
0992-7689
|
|---|---|
| Keywords: |
Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities)
|
| Source: |
Springer Online Journal Archives 1860-2000
|
| Topics: |
Geosciences
Physics
|
| Notes: |
Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798295282866192384 |
|---|---|
| autor | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| autorsonst | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| book_url | http://dx.doi.org/10.1007/s00585-000-0406-2 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM206097522 |
| issn | 0992-7689 |
| journal_name | Annales geophysicae |
| materialart | 1 |
| notes | Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°. |
| package_name | Springer |
| publikationsjahr_anzeige | 2000 |
| publikationsjahr_facette | 2000 |
| publikationsjahr_intervall | 7999:2000-2004 |
| publikationsjahr_sort | 2000 |
| publisher | Springer |
| reference | 18 (2000), S. 406-410 |
| schlagwort | Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) |
| search_space | articles |
| shingle_author_1 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| shingle_author_2 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| shingle_author_3 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| shingle_author_4 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. |
| shingle_catch_all_1 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. Magnetospheric lion roars Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°. 0992-7689 09927689 Springer |
| shingle_catch_all_2 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. Magnetospheric lion roars Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°. 0992-7689 09927689 Springer |
| shingle_catch_all_3 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. Magnetospheric lion roars Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°. 0992-7689 09927689 Springer |
| shingle_catch_all_4 | Baumjohann, W. Georgescu, E. Fornacon, K.-H. Auster, H. U. Treumann, R. A. Haerendel, G. Magnetospheric lion roars Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Magnetospheric physics (magnetospheric configuration and dynamics MHD waves and instabilities plasma waves and instabilities) Abstract The Equator-S magnetometer is very sensitive and has a sampling rate normally of 128 Hz. The high sampling rate for the first time allows detection of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dawnside magnetosphere. The characteristics of these waves are virtually identical to the lion roars typically seen at the bottom of the magnetic troughs of magnetosheath mirror waves. The magnetospheric lion roars are near-monochromatic packets of electron whistler waves lasting for a few wave cycles only, typically 0.2 s. They are right-hand circularly polarized waves with typical amplitudes of 0.5 nT at around one tenth of the electron gyrofrequency. The cone angle between wave vector and ambient field is nearly always smaller than 1°. 0992-7689 09927689 Springer |
| shingle_title_1 | Magnetospheric lion roars |
| shingle_title_2 | Magnetospheric lion roars |
| shingle_title_3 | Magnetospheric lion roars |
| shingle_title_4 | Magnetospheric lion roars |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T09:33:44.571Z |
| titel | Magnetospheric lion roars |
| titel_suche | Magnetospheric lion roars |
| topic | TE-TZ U |
| uid | nat_lic_papers_NLM206097522 |