Geomagnetic Effects from Expanding Plasma Formation of a High-Altitude Nuclear Explosion

Zetser, Yu. I.; Гаврилов, Б. Г.; Zhmaĭlo, V. A.; Gainullin, K. G.; Selin, V. I.

doi:10.1023/b:cesw.0000048265.43517.e6

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…A large class of ionospheric and geomagnetic perturbations associated with meteor/bolides is caused by perturbation of the ionosphere by an acoustic wave coming from the region of the main energy release caused by the object destruction. These effects are physically similar to electromagnetic/ionospheric effects associated with strong ground or atmospheric explosions [Zetser et al, 2004]. Owing to waveguide effects in the atmosphere the acoustic waves from explosion can propagate to distances about several thousand km [Adushkin et al, 2004].…”

Section: Es6009mentioning

confidence: 99%

Geomagnetic effect of the Bering Sea meteoroid

Гаврилов¹,

Пилипенко²,

Poklad³

et al. 2020

Russ. J. Earth Sci.

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Possibilities of studies of the geomagnetic effects produced by the interaction of a cosmic bodies with the magnetosphere-ionosphere-atmosphere system are very limited due to extremely small number of examined events. Here we present geomagnetic observations at an array of magnetometers during Bering Sea Bolide event on December 18, 2018 when a space body entered the Earth's atmosphere and exploded at the altitude of ∼ 25 km near Kamchatka. It has been found that the short-lived electromagnetic signal appeared before the explosion and, consequently, was trigged by the passage of a meteoroid through the inner magnetosphere. Geomagnetic disturbances of the same duration and frequency of oscillations were detected both in the area adjacent to the explosion site in the Northern hemisphere and in the magnetically conjugated area in the Southern hemisphere. These observations may be provisionally interpreted as a triggered excitation of resonant field line oscillations in the inner magnetosphere by the fast-moving meteoroid. The magnetosphere is often in a metastable state, when even a weak external trigger can stimulate an internal instability and wave generation. The appearance of a diamagnetic effect during partial ablation of a meteoroid could cause a local disturbance of the geomagnetic field and its propagation in the magnetic force tube.

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Section: Es6009mentioning

confidence: 99%

Geomagnetic effect of the Bering Sea meteoroid

Гаврилов¹,

Пилипенко²,

Poklad³

et al. 2020

Russ. J. Earth Sci.

Self Cite

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“…The Starfish Prime test also damaged satellites and produced unusual aurorae (e.g., Osmundsen, 1962). Perhaps even more dramatic was Soviet test 184 (also designated K3) on October 22, 1962 (UT): A 300 kiloton explosion was set 300 km above Jezkazgan, Kazakhstan (

47.75 °

64.0 °

E) (e.g., Zetser et al., 2004). It caused fires in power supplies and blew fuses on a 500 km long communication‐cable system located hundreds of kilometers from the epicenter (Greetsai et al., 1998; Seguine, 1995).…”

Section: Introductionmentioning

confidence: 99%

Down to Earth With Nuclear Electromagnetic Pulse: Realistic Surface Impedance Affects Mapping of the E3 Geoelectric Hazard

Love

Lucas

Murphy

et al. 2021

Earth and Space Science

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“…The length of the stream and waves linearly depends on the number of bunches, and radius from the energy of one bunch [1][2][3][4]. The weakly decaying intensive AQW and MQW are formed at the "resonance" of plasma bunches with background, which was not taken into account in plasma experiments in space [5,6].…”

Section: Introductionmentioning

confidence: 99%

Momentum and angular momentum of laser plasma produced by irradiation of the target located in a magnetic field in vacuum

Tischenko

Zakharov

Berezutsky

et al. 2017

AIP Conference Proceedings

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Mechanism of merging of torsional Alfven and slow magnetosonic waves produced by train of laser pulses upon irradiation of a target located in a space plasma with a magnetic field. Abstract. In experiments, the momentum and angular momentum of the slow magnetosonic and torsional Alfven waves produced by irradiating train of laser pulses of the target in a magnetic field in a vacuum or in a rarefied plasma with a magnetic field were investigated. At "resonance" of plasma bunches with background, a single Alfven wave and a single slow magnetosonic wave are formed. These waves transfer a momentum in a narrow tube of the magnetic field, angular momentum variation of the current, and the electric field.

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Geomagnetic Effects from Expanding Plasma Formation of a High-Altitude Nuclear Explosion

Cited by 3 publications

References 2 publications

Geomagnetic effect of the Bering Sea meteoroid

Geomagnetic effect of the Bering Sea meteoroid

Down to Earth With Nuclear Electromagnetic Pulse: Realistic Surface Impedance Affects Mapping of the E3 Geoelectric Hazard

Momentum and angular momentum of laser plasma produced by irradiation of the target located in a magnetic field in vacuum

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