Results 61 to 70 of about 77,477 (148)
Geology of the central uplift of the Kamestastin Lake impact structure, Labrador, Canada
Meteoritics &Planetary Science, EarlyView.Abstract The ~28 km Kamestastin (Mistastin) Lake impact structure is a relatively well‐preserved and well‐exposed complex impact structure. The central uplift of this structure is accessible as two islands in the middle of Kamestastin Lake. We present an updated, detailed geological map and description of Horseshoe and Bullseye islands that provides ...
A. C. Singleton, G. R. Osinski
wiley +1 more source
A Fast Second-order Solver for Stiff Multifluid Dust and Gas Hydrodynamics
The Astrophysical Journal Supplement SeriesWe present MDIRK: a multifluid second-order diagonally implicit Runge–Kutta method to study momentum transfer between gas and an arbitrary number ( N ) of dust species. The method integrates the equations of hydrodynamics with an implicit–explicit scheme
Leonardo Krapp +3 more
doaj +1 more source
Geometric Proca with matter in metric-Palatini gravity
European Physical Journal C: Particles and Fields, 2022 In the present work, we study linear, torsion-free metric-Palatini gravity, extended by the quadratics of the antisymmetric part of the Ricci tensor and extended also by the presence of the affine connection in the matter sector.
Durmuş Demir, Beyhan Puliçe
doaj +1 more source
Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events
Astronomische Nachrichten, Volume 347, Issue 5, June 2026.ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay +4 more
wiley +1 more source
Particle-in-cell Simulations of Plasma Oscillations Excited by Dust Impacts
The Astrophysical JournalDust-impact-induced plasma oscillations (dust ringing) detected in Saturn’s Enceladus plume provide a novel method for measuring electron density. However, since S. Ye et al. discovered such events, their underlying mechanisms remain unclear.
Han Wu +7 more
doaj +1 more source
Fundamental Plasma PhysicsThe presence of diverse negative ions is well-known to modify different collective waves and instabilities in diverse space and astrophysical environments.
Jonmoni Dutta +2 more
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Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei
Astronomische Nachrichten, Volume 347, Issue 5, June 2026.ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
wiley +1 more source
Abstract Stellar formation in dust-rich galactic regions remains one of the central problems of contemporary astrophysics because it connects the evolution of interstellar matter, the structure of molecular clouds, the emergence of stellar populations, and the long-term chemical and dynamical development of galaxies.
Oleksandr Melnyk, Iryna Kovalenko
openaire +3 more sources
A Detection of Circumgalactic Dust at Megaparsec Scales with Maximum Likelihood Estimation
The Astrophysical JournalOne of the more surprising astrophysical discoveries of the past decade has been the presence of enormous quantities of dust at megaparsec distances from galaxies, which has important implications for galaxy evolution, the circumgalactic and ...
Jacqueline E. McCleary +3 more
doaj +1 more source
Particle simulation of the strong magnetic field effect on dust particle charging process
Scientific Reports, 2023 A particle-in-cell simulation is modeled and run on a dusty plasma to determine the effect of the magnetic field on the process of dust-particle charging through electron–ion plasma.
Hadi Davari +2 more
doaj +1 more source