179 papers
Space physics explores the dynamic environment surrounding our planet and the wider solar system, focusing on how charged particles, magnetic fields, and solar winds interact with celestial bodies. This field helps us understand phenomena like auroras, space weather that can disrupt satellites, and the fundamental behavior of plasma in the vacuum of space. It bridges the gap between astronomy and particle physics, revealing the invisible forces that shape our cosmic neighborhood.
At Gist.Science, we process every new preprint in this category as it appears on arXiv, ensuring you get immediate access to the latest research. For each paper, we provide both a detailed technical summary for experts and a plain-language explanation that makes complex concepts understandable for everyone. Below are the latest space physics papers from arXiv, curated and simplified for your reading.
This paper introduces a novel, likelihood-free framework combining Flow Matching and Simulation-Based Inference with a differentiable N-body code to jointly infer the Milky Way's gravitational potential and the progenitor properties of the GD-1 stellar stream, successfully capturing complex dynamical couplings that traditional methods struggle to model.
This paper combines Voyager 1 and 2 observations with MHD modeling to demonstrate that solar-cycle-driven compressions propagating through the heliopause explain recent magnetic field anomalies in the very local interstellar medium, while turbulence analysis reveals intermittent structures and enables predictions of future magnetic activity through 2030.
This study analyzes ten hours of uGMRT Band-4 observations of 3C48 to characterize ionospheric phase fluctuations at low latitudes, revealing power-law turbulence with anisotropic structures consistent with MSTIDs and identifying diffractive scales critical for improving direction-dependent calibration strategies.
This paper proposes an efficient rejection-sampling procedure for generating Kappa distributions in particle-in-cell (PIC) simulations of space plasmas by employing a Pareto distribution as an envelope, which requires only uniform variates and achieves an acceptance efficiency of approximately 0.73 to 0.8.
This paper proposes a novel disturbance-torque-estimation-augmented model predictive control framework that utilizes a Kalman filter and enhanced dynamics modeling to effectively manage momentum on NASA's Solar Cruiser mission, successfully outperforming state-of-the-art methods during large-angle slew maneuvers.
By combining Juno/Waves observations with 3D geometrical simulations, this study constrains the generation mechanisms of Jovian narrowband radio emissions (nKOM and nLF), identifying them as primarily fundamental plasma frequency emissions with distinct propagation modes (O-mode at high latitudes and X-mode at low latitudes) and suggesting a potential coexistence of linear and nonlinear generation processes for nLF.
By applying a new 3D geometrical modeling method to Juno/Waves observations, this study identifies the generation mechanism and beaming of Jovian nKOM as plasma emissions produced at the local plasma frequency and directed along decreasing frequency gradients near the Io plasma torus, while distinguishing between ordinary mode emissions at high latitudes and extraordinary mode emissions at low latitudes.
By integrating multi-mission data from NASA's MMS and ESA's Cluster missions, this study demonstrates how shock-generated hot flow anomalies transmit through Earth's quasi-parallel bow shock to confine and further accelerate electrons to relativistic energies via betatron mechanisms, while simultaneously driving high-speed jets that expand the spatial domain of particle acceleration.
This paper presents a statistical processing pipeline using a scaled Vecchia Gaussian process to overcome noise challenges in ISS-based EP-EE instrument data, enabling the recovery of ionospheric signals and increased data coverage during the Solar Cycle 25 maximum.
This paper presents the first comprehensive VLBI observations of Galileo navigation satellites using the Australian AuScope array, demonstrating the feasibility of deriving station coordinates and establishing inter-technique ties between VLBI and GNSS reference frames to support future geodetic co-location missions like ESA's Genesis.