Results 61 to 70 of about 15,949 (218)
The Threatening Environment of the TRAPPIST-1 Planets
, 2017 Recently, four additional Earth-mass planets were discovered orbiting the nearby ultracool M8 dwarf TRAPPIST-1, making a remarkable total of seven planets with equilibrium temperatures compatible with the presence of liquid water on their surface ...
Alvarado-Gomez, Julian D. +4 more
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Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Mars directly interacts with the solar wind and hosts a complex plasma‐wave environment. Using MAVEN observations, we identify an event in the dusk‐side Martian magnetosheath where strongly compressive sub‐cyclotron kinetic‐scale fluctuations coexist with second‐harmonic proton cyclotron waves (PCWs).
Jintian Yang +10 more
wiley +1 more source
Direct Observations of Reconnection Fronts in Earth's Turbulent Magnetosheath
The Astrophysical Journal, 2023 Reconnection fronts (RFs), ion-scale magnetic transients characterized by dramatic enhancement of reconnected magnetic fields, have been documented as crucial energy transfer regions during magnetic reconnection.
C. M. Liu, X. N. Xing, J. B. Cao
doaj +1 more source
Life on Mars? The physiological perspective
Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Poleward boundary intensifications (PBIs) are one of the most common auroral disturbances and have been shown to play a key role in substorm dynamics. PBIs are commonly interpreted as the ionospheric signature of magnetotail reconnection, providing insight into X‐line evolution.
Katherine Davidson +5 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Based on 2‐year magnetic data from the Macau science satellite, we investigate the compressional Pc3‐4 pulsations (between 16 and 100 mHz) driven by upstream waves (UWs). Our results confirm larger UWs amplitudes in the South Atlantic Anomaly (SAA) longitudes, agreeing with previous missions.
Chao Xiong +3 more
wiley +1 more source
Precessing planetary magnetospheres in SiO stars? [PDF]
Astronomy & Astrophysics, 2009 Context. The origin of magnetism around asymptotic giant branch (AGB) stars remains an uncertainty. These stars may drive an important dynamo, but if the magnetic energy dissipates entirely into X-rays, the observed X-ray luminosities are too low to maintain a strong, dynamically important global field.
H. Wiesemeyer +3 more
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Based on high‐resolution measurements from NASA's Magnetospheric Multiscale mission (MMS), we present the first direct observation of an ion diffusion region (IDR) with high number density O+ ions within dayside magnetopause reconnection during the May 2024 superstorm. The O+ ion density reaches a high value of ∼3.3 cm−3.
Anxin Zhang +8 more
wiley +1 more source
Saturation of Ionospheric Currents under Extreme Environments
The Astrophysical JournalStrong solar wind conditions can drive large electric potentials across planetary polar caps, but previous studies have shown that the cross polar cap potential reaches a saturation point during periods of high interplanetary magnetic field (IMF ...
Fatemeh Bagheri, Alex Glocer
doaj +1 more source
GMRT Low Frequency Observations of Extrasolar Planetary Systems
, 2007 Extrasolar planets are expected to emit detectable low frequency radio emission. In this paper we present results from new low frequency observations of two extrasolar planetary systems (Epsilon Eridani and HD 128311) taken at 150 MHz with the Giant ...
I. R. Stevens, NESS, S. J. George
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