Results 41 to 50 of about 11,853 (228)

On the propagation of bubbles in the geomagnetic tail [PDF]

Annales Geophysicae, 2004
Using three-dimensional magnetohydrodynamic simulations, we investigate the propagation of low-entropy magnetic flux tubes ("bubbles") in the magnetotail.
J. Birn, J. Raeder, J. Raeder, Y. L. Wang, Y. L. Wang, R. A. Wolf, M. Hesse   +6 more
doaj   +1 more source

Magnetospheric response to magnetosheath pressure pulses: A low pass filter effect [PDF]

, 2013
. We present observations from the magnetopause to the ground during periods of large amplitude, transient dynamic pressure pulses in the magnetosheath.
Archer, MO, Eastwood, JP, Horbury, TS, Weygand, JM, Yeoman, TK   +4 more
core   +1 more source

Measurement of geomagnetically induced current (GIC) around Tokyo, Japan

Earth, Planets and Space, 2021
We need a typical method of directly measuring geomagnetically induced current (GIC) to compare data for estimating a potential risk of power grids caused by GIC.
Shinichi Watari, Satoko Nakamura, Yusuke Ebihara   +2 more
doaj   +1 more source

Magnetospheric Source and Electric Current System Associated With Intense SAIDs

Geophysical Research Letters, 2021
AbstractSubauroral Ion Drifts (SAIDs) are fast azimuthal plasma flows in the ionosphere. In this study, we use the Rice Convection Model to simulate an extremely intense SAID event which may trigger atmospheric emission phenomenon by specifying consecutive low‐entropy bubble injections.
Wenrui Wang, Jian Yang, Yukitoshi Nishimura, Weiqin Sun, Dong Wei, Fei Zhang, Frank R. Toffoletto, Richard A. Wolf, Stanislav Sazykin, Vassilis Angelopoulos, Jun Cui   +10 more
openaire   +1 more source

Black Hole and Neutron Star Transients in Quiescence [PDF]

, 1999
We consider the X-ray luminosity difference between neutron star and black hole soft X-ray transients (NS and BH SXTs) in quiescence. The current observational data suggest that BH SXTs are significantly fainter than NS SXTs.
Ann A. Esin, Asai K., Beekman G., Bondi H., Campana S., Chevalier C., Davies R. E., Davies R. E., Illarionov A. F., Jean‐Pierre Lasota, Jeffrey E. McClintock, King A., Kristen Menou, Kuulkers E., Lasota J.-P., Meyer F., Michael R. Garcia, Nakamura K. E., Pylyser E., Ramesh Narayan, Shakura N. I., Shaviv G., Verbunt F., Wang Y.-M., Wang Y.-M., Wang Y.-M., Zavlin V. E.   +26 more
core   +3 more sources

Magnetospheric convection electric field dynamics and stormtime particle energization: Case study of the magnetic storm of 4 May 1998 [PDF]

, 2004
It is shown that narrow channels of high electric field are an effective mechanism for injecting plasma into the inner magnetosphere. Analytical expressions for the electric field cannot produce these channels of intense plasma flow, and thus, result in ...
Fok, M.C., Khazanov, G.V., Liemohn, M.W., Newman, T.S., Ridley, A.J.   +4 more
core   +8 more sources

Auroral electrojet dynamics during magnetic storms, connection with plasma precipitation and large-scale structure of the magnetospheric magnetic field [PDF]

Annales Geophysicae, 1999
Effect of the equatorward shift of the eastward and westward electrojets during magnetic storms main phase is analyzed based on the meridional chains of magnetic observatories EISCAT and IMAGE and several Russian observatories (geomagnetic longitude ...
Y. I. Feldstein, L. I. Gromova, A. Grafe, C.-I. Meng, V. V. Kalegaev, I. I. Alexeev, Y. P. Sumaruk   +6 more
doaj   +1 more source

Reconnection With Magnetic Flux Pileup at the Interface of Converging Jets at the Magnetopause

Geophysical Research Letters, 2019
We report Magnetospheric Multiscale observations of reconnection in a thin current sheet at the interface of interlinked flux tubes carried by converging reconnection jets at Earth's magnetopause.
M. Øieroset, T. D. Phan, J. F. Drake, J. P. Eastwood, S. A. Fuselier, R. J. Strangeway, C. Haggerty, M. A. Shay, M. Oka, S. Wang, L.‐J. Chen, I. Kacem, B. Lavraud, V. Angelopoulos, J. L. Burch, R. B. Torbert, R. E. Ergun, Y. Khotyaintsev, P. A. Lindqvist, D. J. Gershman, B. L. Giles, C. Pollock, T. E. Moore, C. T. Russell, Y. Saito, L. A. Avanov, W. Paterson   +26 more
doaj   +1 more source

The Vlasiator 5.2 ionosphere – coupling a magnetospheric hybrid-Vlasov simulation with a height-integrated ionosphere model [PDF]

Geoscientific Model Development
Simulations of the coupled ionosphere–magnetosphere system are a key tool to understand geospace and its response to space weather. For the most part, they are based on fluid descriptions of plasma (magnetohydrodynamics, MHD) formalism, coupled to an ...
U. Ganse, Y. Pfau-Kempf, H. Zhou, L. Juusola, L. Juusola, A. Workayehu, F. Kebede, K. Papadakis, M. Grandin, M. Alho, M. Battarbee, M. Dubart, L. Kotipalo, A. Lalagüe, J. Suni, K. Horaites, M. Palmroth, M. Palmroth   +17 more
doaj   +1 more source

Electromagnetic waves and bursty electron acceleration: implications from Freja [PDF]

Annales Geophysicae, 2002
Dispersive Alfvén wave activity is identified in four dayside auroral oval events measured by the Freja satellite. The events are characterized by ion injection, bursty electron precipitation below about 1 keV, transverse ion heating and broadband ...
L. Andersson, L. Andersson, L. Andersson, L. Andersson, J.-E. Wahlund, J. Clemmons, B. Gustavsson, L. Eliasson   +7 more
doaj   +1 more source