Results 61 to 70 of about 2,531 (226)
Obtaining the Strength of the Magnetic Field from E- and B-Modes of Dust Polarization
We perform numerical simulations of supersonic magnetohydrodynamic (MHD) turbulence and calculate Fourier power spectra of E - and B -modes arising from dust polarization. We pay close attention to the ratio of E -mode to B -mode spectra (a.k.a.
Jungyeon Cho
doaj +1 more source
Transport of Water in a Transient, Impact‐Generated Atmosphere on Mercury
Abstract Mercury's polar cold traps host water ice deposits that are likely populated with impact‐delivered water via Mercury's exosphere. However, Mercury's near‐sun location experiences an extremely high photodestruction rate that rapidly destroys water with a timescale of only ∼3.5 hr.
J. K. Steckloff +4 more
wiley +1 more source
Abstract Space weathering substantially distorts the Christiansen feature (CF) observed by Lunar Reconnaissance Orbiter (LRO) Diviner thermal infrared radiometer, obscuring the intrinsic compositional and thermophysical signals of lunar surface silicate minerals.
Ming Ma +11 more
wiley +1 more source
The subject of this work is focused on the study of stratospheric dust with DUSTER (Dust in the Upper Stratosphere Tracking Experiment and Retrieval) a balloon-borne instrument.
Ciucci, Alessandra
core
Inferring the interplanetary dust properties
Since in situ studies and interplanetary dust collections only provide a spatially limited amount of information about the interplanetary dust properties, it is of major importance to complete these studies with properties inferred from remote ...
Lasue, Jérémie +7 more
core +1 more source
Abstract Thermospheric neutral density controls satellite drag in low Earth orbit and varies strongly during geomagnetic storms. We present a multi‐mission, phase‐resolved assessment of empirical and physics‐based thermosphere models using 151 storms from 2001 to 2023, including MSIS, DTM, JB2008, WAM‐IPE, WACCM‐X, GITM, CTIPe, and TIE‐GCM.
Jack C. Wang +11 more
wiley +1 more source
Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS
The Integrated Science Investigation of the Sun energetic particle instrument suite on the Parker Solar Probe is dedicated to measuring energetic ions and electrons in the near-Sun environment.
M. M. Shen +11 more
doaj +1 more source
Detection of Biological Bricks in Space. The Case of Adenine in Silica Aerogel
Space missions using probes to return dust samples are becoming more frequent. Dust collectors made of silica aerogel blocks are used to trap and bring back extraterrestrial particles for analysis.
Aline Percot +7 more
doaj +1 more source
Satellite Reentry Predictions During Sudden Stratospheric Warmings
Abstract Prediction of uncontrolled satellite reentry time and trajectory are essential to avoid damages to human being and properties over land. Reentry time and trajectory are largely controlled by aerodynamic drag and mass neutral density below 200 km.
Jia Yue +6 more
wiley +1 more source
State of the Early Career Profession in Space Physics and Aeronomy: Climatological Survey Results
Abstract The American Geophysical Union (AGU) Space Physics & Aeronomy (SPA) section comprises scientists who study the Sun, solar wind, and planetary magnetospheres, ionospheres, and thermospheric/mesospheric systems along with their interconnections.
R. C. Allen +11 more
wiley +1 more source

