Results 141 to 150 of about 2,400 (232)

An unsupervised machine learning approach to iron meteorite classification

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 997-1011, June 2026.
Abstract Iron meteorites are usually classified manually using bivariate elemental plots. This study extends iron meteorite classification into multi‐element space. We present a computational method for the classification of iron meteorites by applying unsupervised machine learning using density‐based cluster analysis.
Louis‐Alexandre Lobanov, Hilary Downes
wiley   +1 more source

Near infra-red absorption spectroscopy for astrophysically significant ions. [PDF]

Exp Astron (Dordr)
Dowd K, Doyle E, Dunne P.
europepmc   +1 more source

First Detection of the Two‐Dimensional Vertical Propagation of Traveling Ionospheric Disturbances Associated With Atmospheric Gravity Waves in the Martian Ionosphere

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract We report the detection of a traveling ionospheric disturbance (TID) captured by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) Active Ionospheric Sounding (AIS) instrument aboard the Mars Express spacecraft at 150–250 km altitude.
Rong Tian, Beatriz Sánchez‐Cano, Chunhua Jiang, Mark Lester, Dikshita Meggi, Simon Joyce, Christopher M. Fowler, Andrea Cicchetti, Mats Holmstrom, David Andrews, Pedro Machado   +10 more
wiley   +1 more source

Chip-integrated spectroscopy capable of temperature retrieval. [PDF]

Sci Rep
Du Y, Sua YM, Kumar S, Zhang J, Li X, Hu Y, Ghuman P, Huang Y.   +7 more
europepmc   +1 more source

Ion Cyclotron Waves Associated With Ionospheric Outflow at Jupiter

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The mechanism driving ion outflow from Jupiter's auroras remains to be determined. H+ ${\mathrm{H}}^{+}$ outflow has been observed with highly field‐aligned pitch angles consistent with acceleration by high‐altitude electrostatic potential structures.
E. A. Skinner, A. H. Sulaiman, J. R. Szalay, N. S. Kruegler, R. L. Lysak, Y. Sarkango, W. S. Kurth, G. Clark, S. J. Bolton   +8 more
wiley   +1 more source

Electron recombination of rotationally cold D₂H⁺ ions. [PDF]

Nat Commun
Znotins A, Faure A, Greene CH, Grieser M, Grussie F, Isberner LW, Kálosi Á, Kokoouline V, Müll D, Paul D, Pezzella M, Savin DW, Schippers S, Tennyson J, Wolf A, Novotný O, Kreckel H.   +16 more
europepmc   +1 more source

Electron Dispersion at the Electron Edge of the Earth's Magnetospheric Cusp

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites (TRACERS) mission observes electron energy‐latitude dispersion at the equatorward edge of the magnetospheric cusp, and high‐cadence Analyzer for Cusp Electrons (ACE) measurements resolve the dispersed edge. The inverse velocity dispersion (low energy before high energy)
J. S. Halekas, S. A. Henderson, S. R. Bounds, S. Ruhunusiri, A. Moore, I. W. Christopher, D. M. Miles, J. B. Bonnell, B. L. Burkholder, I. H. Cairns, L.‐J. Chen, H. K. Connor, I. M. DesJardin, J. C. Dorelli, C. Feltman, S. A. Fuselier, K. Goodrich, G. Hospodarsky, A. N. Jaynes, J. Labelle, M. Øieroset, S. M. Petrinec, B. Powers, K. J. Trattner, S. L. Soni, R. Strangeway, D. Sur   +26 more
wiley   +1 more source

Microquasar V4641 Sgr and Its Deep Investigation with LACT as a Super-PeVatron of Cosmic Rays. [PDF]

Research (Wash D C)
Cao Z, Khangulyan D, Liu J, Liu R.
europepmc   +1 more source

Magnetic Rope Is an Electron Selector: Discovery in Space and Conceptual Application to Medicine

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Magnetic rope is a helical structure existing ubiquitously in astrophysical and space plasmas. Such structure has been conventionally known to accelerate electrons, convert energy, and play key roles in driving solar eruptions. Here, in contrast to the conventional concept, we report that the magnetic rope can divert electrons efficiently in ...
H. S. Fu, J. B. Cao, X. Xiong, H. B. Tang, Y. Q. Yu, Z. Z. Chen, Y. Yu, M. W. Dunlop, Y. Wei   +8 more
wiley   +1 more source

Alfvén Waves in Partially Ionised Solar Steady-State Plasmas. [PDF]

Sol Phys
Alshehri NF, Ballai I, Verth G, Fedun V.
europepmc   +1 more source