标题： 基于扩展阻力的模型用于更好地预测日冕物质抛射的演化 显示英文标题

标题： Extended Drag-Based Model for better predicting the evolution of Coronal Mass Ejections

摘要： 基于太阳风阻力的模型是预测日冕物质抛射（CMEs）在星际空间传播的广泛应用框架。 该模型主要考虑太阳风对CMEs施加的空气动力学阻力。 然而，磁力、压力梯度以及CME内部的动力学等因素证明了在模型中引入一个额外的小尺度加速度项的必要性。 确实，通过考虑这个额外的加速度，扩展的阻力模型被证明在描述CMEs在日球层中的演化方面提供了更高的准确性，从而在预测CME轨迹和到达地球的时间方面也有所提高。 这种改进对于更好地预测空间天气事件以及减轻其对空间和地面技术的潜在影响至关重要。 显示英文摘要

摘要： The solar wind drag-based model is a widely used framework for predicting the propagation of Coronal Mass Ejections (CMEs) through interplanetary space. This model primarily considers the aerodynamic drag exerted by the solar wind on CMEs. However, factors like magnetic forces, pressure gradients, and the internal dynamics within CMEs justify the need of introducing an additional small-scale acceleration term in the game. Indeed, by accounting for this extra acceleration, the extended drag-based model is shown to offer improved accuracy in describing the evolution of CMEs through the heliosphere and, in turn, in forecasting CME trajectories and arrival times at Earth. This enhancement is crucial for better predicting Space Weather events and mitigating their potential impacts on space-based and terrestrial technologies.