Search Results - "Klecker, B."
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A statistical study of EMIC waves observed by Cluster: 1. Wave properties
Published in Journal of geophysical research. Space physics (01-07-2015)“…Electromagnetic ion cyclotron (EMIC) waves are an important mechanism for particle energization and losses inside the magnetosphere. In order to better…”
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Differences in Ionospheric O+ and H+ Outflow During Storms With and Without Sawtooth Oscillations
Published in Geophysical research letters (16-08-2024)“…Previous simulations have suggested that O+ outflow plays a role in driving the sawtooth oscillations. This study investigates the role of O+ by identifying…”
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Quantifying the Contribution of Microbursts to Global Electron Loss in the Radiation Belts
Published in Journal of geophysical research. Space physics (01-02-2019)“…We use the Solar, Anomalous, and Magnetospheric Particle Explorer to explore the relationship between microbursts and global flux decay of electrons from the…”
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Anisotropic Three-Dimensional Focused Transport of Solar Energetic Particles in the Inner Heliosphere
Published in The Astrophysical journal (01-02-2010)“…We investigate the combined effects of solar energetic particle propagation, parallel and perpendicular to the large-scale magnetic field in the solar wind…”
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The Variation of Ionospheric O+ and H+ Outflow on Storm Timescales
Published in Journal of geophysical research. Space physics (01-11-2023)“…Geomagnetic storms are primarily driven by stream interaction regions (SIRs) and coronal mass ejections (CMEs). Since SIR and CME storms have different solar…”
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A statistical study of EMIC waves observed by Cluster: 2. Associated plasma conditions
Published in Journal of geophysical research. Space physics (01-07-2016)“…This is the second in a pair of papers discussing a statistical study of electromagnetic ion cyclotron (EMIC) waves detected during 10 years (2001–2010) of…”
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A Possible Enrichment of Heavy and Ultraheavy Ions in Solar Energetic Particle Events Due to a Combined Effect of Stochastic Acceleration and Coulomb Losses
Published in The Astrophysical journal (01-01-2020)“…Solar particle events that are rich in 3He typically also exhibit large overabundances of heavy and ultraheavy ions that increase with the mass of the ions. To…”
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Energetic Charged Particles in the Terrestrial Magnetosphere: Cluster/RAPID Results
Published in Journal of geophysical research. Space physics (01-09-2021)“…In this work, we review the results of observations by the Cluster/Research with Adaptive Particle Imaging Detectors (RAPID) energetic charged particle…”
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Cusp as a source for oxygen in the plasma sheet during geomagnetic storms
Published in Journal of Geophysical Research. B. Solid Earth (01-03-2010)“…We have used the ion composition data from the CIS/CODIF instrument on Cluster to determine how the O+ population in the plasma sheet and the adjacent lobes…”
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A Mechanism for the Fractionation of Isotopes in 3He-rich Solar Energetic Particle Events
Published in The Astrophysical journal (01-01-2021)“…By employing our charge-consistent acceleration model we demonstrate a possibility to explain the isotopic ratios observed in a number of 3He-rich events. We…”
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ELECTROMAGNETIC WAVES NEAR THE PROTON CYCLOTRON FREQUENCY: STEREO OBSERVATIONS
Published in The Astrophysical journal (10-05-2014)“…Transverse, near-circularly polarized, parallel-propagating electromagnetic waves around the proton cyclotron frequency were found sporadically in the solar…”
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Contribution of energetic and heavy ions to the plasma pressure: The 27 September to 3 October 2002 storm
Published in Journal of geophysical research. Space physics (01-09-2017)“…Magnetospheric plasma sheet ions drift toward the Earth and populate the ring current. The ring current plasma pressure distorts the terrestrial internal…”
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H+ and O+ content of the plasma sheet at 15-19 Re as a function of geomagnetic and solar activity
Published in Journal of Geophysical Research: Space Physics (01-12-2010)“…We have used the ion composition data from the CIS/CODIF instrument on the Cluster spacecraft to determine how the H+ and O+ contribution to the plasma sheet…”
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A statistical study of EMIC wave-associated He+ energization in the outer magnetosphere: Cluster/CODIF observations
Published in Journal of Geophysical Research: Space Physics (01-11-2011)“…During the time period of 1 March 2001–1 April 2008, the Composition and Distribution Function (CODIF) Analyzer on board Cluster observed 41 prolonged He+…”
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Evolution of dipolarization in the near-Earth current sheet induced by Earthward rapid flux transport
Published in Annales geophysicae (1988) (09-04-2009)“…We report on the evolution of dipolarization and associated disturbances of the near-Earth current sheet during a substorm on 27 October 2007, based upon…”
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Spatial scale of high-speed flows in the plasma sheet observed by Cluster
Published in Geophysical research letters (16-05-2004)“…Spatial gradients of high‐speed flows in the midtail plasma sheet are determined using multipoint observations from the Cluster spacecraft along the…”
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Acceleration of O+ from the cusp to the plasma sheet
Published in Journal of geophysical research. Space physics (01-02-2015)“…Heavy ions from the ionosphere that are accelerated in the cusp/cleft have been identified as a direct source for the hot plasma in the plasma sheet. However,…”
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Solar cycle dependence of the cusp O+access to the near-Earth magnetotail
Published in Journal of Geophysical Research: Space Physics (01-10-2012)“…Ionospheric origin O+ accelerated in the cusp/cleft region is one source for the O+ observed in the plasma sheet. This O+ is convected over the polar cap,…”
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Motion of the dipolarization front during a flow burst event observed by Cluster
Published in Geophysical research letters (01-10-2002)“…In this paper we study a flow burst event which took place during enhanced geomagnetic activity on July 22, 2001, when Cluster was located in the postmidnight…”
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Experimental test of the ρ(1-α) evolution for rotational discontinuities: cluster magnetopause observations
Published in Annales geophysicae (1988) (15-01-2015)“…Rotational discontinuities (RDs) are governed by two relations: the Walén relation predicting that the plasma velocity observed in the deHoffmann–Teller frame…”
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