On modelling the kinematics and evolutionary properties of pressure pulse driven impulsive solar jets

TL;DR

This study uses numerical simulations to analyze the kinematics and evolution of pressure pulse-driven impulsive solar jets, revealing how magnetic field strength influences jet properties and their role in mass and energy transport in the solar atmosphere.

Contribution

The paper introduces a detailed numerical model that captures the properties and evolution of various impulsive solar jets driven by pressure pulses, highlighting the impact of magnetic field strength.

Findings

Jet height and lifetime increase linearly with pressure pulse strength.

Stronger magnetic fields produce longer and more energetic jets.

Jets exhibit asymmetric height-time profiles influenced by pressure perturbations.

Abstract

In this paper, we describe the kinematical and evolutionary properties of the impulsive cool jets in the solar atmosphere using numerical simulation by Godunov-type PLUTO code at two different strength of the quiet-Sun magnetic field (B=56, 112 Gauss). These types of chromospheric jets are originated by the pressure pulse, which mimics after effects of the localized heating in the lower solar atmosphere. These jets may be responsible for the transport of mass and energy in the localized upper atmosphere (i.e., corona). The detection of the height-time profiles for the jets, originated by imposing the different pressure pulses, exhibit the asymmetric near parabolic behaviour. This infers that the upward motion of the jet occurs under the influence of pressure perturbation. However, its downward motion is not only governed by the gravitational free fall, but also due to the complex plasma motions near its base under the effect of counter propagating pulses. Maximum height and life-time of the jets w.r.t. the strength of the pressure pulse show a linear increasing trend. This suggests that if the extent of the heating and thus pressure perturbations will be longer then more longer chromospheric jets can be triggered from the same location in the chromosphere. For the certain amplitude of pressure pulse, the strong magnetic field configuration (B=112 Gauss) leads more longer jet compared to the weaker field (B=56 Gauss). This suggests that the strong magnetic field guides the pressure pulse driven jets more efficiency towards the higher corona. In conclusion, our model mimics the properties and evolution of variety of the cool impulsive jets in the chromosphere (e.g., macrospicules, network jets, isolated repeated cool jets, confined \& small surges etc).