Results 61 to 70 of about 471 (212)

Interplanetary magnetic field rotations followed from L1 to the ground : the response of the Earth's magnetosphere as seen by multi-spacecraft and ground-based observations [PDF]

open access: yes, 2011
A study of the interaction of solar wind magnetic field rotations with the Earth's magnetosphere is performed. For this event there is, for the first time, a full coverage over the dayside magnetosphere with multiple (multi)spacecraft missions from dawn ...
Escoubet, P.   +63 more
core   +1 more source

Incremental Shifts, Strategic Orbits: The Evolution of EU Space Policy Through Gradual Security Linkages

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article examines the evolution of European Union (EU) space policy through the lens of historical institutionalism, highlighting how security and defence considerations have been incrementally integrated into a domain originally framed as civilian and scientific.
Gustavo G. Müller, Philip De Man
wiley   +1 more source

The Outsiders: Principled Withdrawal, Whiteness, and Power in the Los Angeles Food Justice Movement

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT This article draws on understandings of whiteness and the misconstrual of South Central Los Angeles to analyze the power dynamics between “outsider” activists and residents of South Central as they worked toward a more equitable food system.
Hanna Garth
wiley   +1 more source

Hot flow anomaly observed at Jupiter's bow shock

open access: yes, 2017
International audienceA Hot Flow Anomaly (HFA) is created when an interplanetary current sheet interacts with a planetary bow shock. Previous studies have reported observing HFAs at Earth, Mercury, Venus, Mars, and Saturn.
S. Weidner   +35 more
core   +1 more source

On the Formation of Super-Alfvénic Flows Downstream of Collisionless Shocks

open access: yesThe Astrophysical Journal
Super-Alfvénic jets, with kinetic energy densities significantly exceeding that of the solar wind, are commonly generated downstream of Earth's bow shock under both high- and low-beta plasma conditions. In this study, we present theoretical evidence that
Adnane Osmane, Savvas Raptis
doaj   +1 more source

Electron Acceleration and Heating during Magnetic Reconnection in the Earth's Quasi-parallel Bow Shock

open access: yesThe Astrophysical Journal, 2023
We perform a 2.5-dimensional particle-in-cell simulation of a quasi-parallel shock, using parameters for the Earth’s bow shock, to examine electron acceleration and heating due to magnetic reconnection.
N. Bessho   +5 more
doaj   +1 more source

Tracing solar wind plasma entry into the magnetosphere using ion-to-electron temperature ratio [PDF]

open access: yes, 2009
When the solar wind Mach number is low, typically such as in magnetic clouds, the physics of the bow shock leads to a downstream ion-to-electron temperature ratio that can be notably lower than usual.
Rouillard AP   +88 more
core   +1 more source

Hunger as an uncontroversial predictor of poor adolescent mental health: evidence from a multiverse analysis of 410,213 adolescents across 79 countries

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Hunger has established detrimental impacts on physical health, with emerging evidence indicating negative impacts on mental health. However, there is a pronounced knowledge gap outside high‐income settings and for adolescents. Previous research also provides differing estimates of hunger's impacts, potentially underpinned by a wide range of ...
Mirela Zaneva   +3 more
wiley   +1 more source

The Utility of Infrasound in Global Monitoring of Extraterrestrial Impacts: A Case Study of the 2008 July 23 Tajikistan Bolide

open access: yesThe Astronomical Journal
Among the various observational techniques used for the detection of large bolides on a global scale is a low-frequency sound known as infrasound. Infrasound, which is also one of the four sensing modalities used by the International Monitoring System ...
Elizabeth A. Silber
doaj   +1 more source

Injection and acceleration of H+ and He2+ at Earth's bow shock [PDF]

open access: yesAnnales Geophysicae, 1999
We have performed a number of one-dimensional hybrid simulations (particle ions, massless electron fluid) of quasi-parallel collisionless shocks in order to investigate the injection and subsequent acceleration of part of the solar wind ions at the ...
M. Scholer, H. Kucharek, K.-H. Trattner
doaj   +1 more source

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