A self-consistent 3D MHD model producing a solar blowout jet
arXiv:2512.21728 · doi:10.1051/0004-6361/202556660
Abstract
Context. Solar blowout jets are a distinct subclass of ubiquitous extreme-ultraviolet (EUV) and X-ray coronal jets. Aims. Most existing models of blowout jets prescribe an initial magnetic field configurations and apply ad-hoc changes in the photosphere to trigger the jets. In contrast, we aim for a self-consistent magneto-convective description of the jet initiation. Methods. We employ a 3D radiation magnetohydrodynamic (MHD) model of a solar coronal hole region using the MURaM code. The computational domain extends from the upper convection zone to the lower corona. We synthesize the emission in the extreme UV and X-rays for a direct comparison to observations and examine the evolution of the magnetic field structure of the event. Results. In the simulation a twisted flux tube forms self-consistently, emerges through the surface and interacts with the pre-existing open field. Initially the resulting jet is of the standard type with a narrow spire. The release of the twist into the open field causes a broadening of the jet spire turning the jet into a blowout type. At the same time this creates a fast heating front propagating at the local Alfvén speed. The properties of the modeled jet closely match observations of blowout jets: a slow (180 km/s) mass upflow and a fast (500 km/s) propagating front form, the latter being a signature of the heating front. Also the timing of the jet with respect to the flux emergence and subsequent cancellation matches observations. Conclusions. The near-surface magneto-convection self-consistently generates a twisted flux tube that emerges through the photosphere. The tube then interacts with the pre-existing magnetic field by means of interchange reconnection. This transfers the twist to the open field region and produces a blowout jet that matches the main characteristics of this type of jet found in observations.
Accepted for publication in A&A
References in corpus (42)
- Alfven Wave Solar Model (AWSoM): Coronal Heating
- Solar Coronal Jets: Observations, Theory, and Modeling
- Small-scale filament eruptions as the driver of solar coronal hole X-ray jets
- Prevalence of Small-scale Jets from the Networks of the Solar Transition Region and Chromosphere
- Jets in coronal holes: Hinode observations and 3D computer modelling
- Extension of the MURaM radiative MHD code for coronal simulations
- Persistent Doppler shift oscillations observed with HINODE/EIS in the solar corona: spectroscopic signatures of Alfvenic waves and recurring upflows
- Generation of Solar Spicules and Subsequent Atmospheric Heating
- Plasma Jets and Eruptions in Solar Coronal Holes: a 3D flux emergence experiment
- STEREO/SECCHI Stereoscopic Observations Constraining the Initiation of Polar Coronal Jets
- A Breakout Model for Solar Coronal Jets with Filaments
- Magnetic Flux Cancellation as the Trigger of Solar Quiet-Region Coronal Jets
- Kinematics and Fine Structure of An Unwinding Polar Jet Observed by SDO/AIA
- Homologous Helical Jets: Observations by IRIS, SDO and Hinode and Magnetic Modeling with Data-Driven Simulations
- On a solar blowout jet: driven mechanism and the formation of cool and hot components
- Three-Dimensional Simulations of Tearing and Intermittency in Coronal Jets
- Magnetic Flux Cancelation as the Trigger of Solar Coronal-Hole Coronal Jets
- Solar Dynamics Observatory and Hinode observations of a blowout jet in a coronal hole
- A standard-to-blowout jet
- Picoflare jets power the solar wind emerging from a coronal hole on the Sun
- Rotating Solar Jets in Simulations of Flux Emergence with Thermal Conduction
- Blob formation and ejection in coronal jets due to the plasmoid and Kelvin-Helmholtz instabilities
- Magnetic Untwisting in Solar Jets that Go into the Outer Corona in Polar Coronal Holes
- Evidence For The Magnetic Breakout Model in an Equatorial Coronal-Hole Jet
- Kinematics of an untwisting solar jet in polar coronal hole observed by SDO/AIA
- Multiwavelength Study of Equatorial Coronal-Hole Jets
- Reconnection-Driven Coronal-Hole Jets with Gravity and Solar Wind
- Chromospheric Extension of the MURaM Code
- A Coronal Hole Jet Observed with Hinode and the Solar Dynamics Observatory
- Plasmoid-mediated reconnection in solar UV bursts
- Helical Blowout Jets in the Sun: Untwisting and Propagation of Waves
- What causes the high apparent speeds in chromospheric and transition region spicules on the Sun?
- Ultra-high-resolution Observations of Persistent Null-point Reconnection in the Solar Corona
- Coronal microjets in quiet-Sun regions observed with the Extreme Ultraviolet Imager onboard Solar Orbiter
- Interchange Reconnection Alfven Wave Generation
- A Model for Coronal Hole Bright Points and Jets due to Moving Magnetic Elements
- Flux Rope Breaking and Formation of a Rotating Blowout Jet
- Reconnection-Driven Magnetohydrodynamic Turbulence in a Simulated Coronal-Hole Jet
- Sympathetic Standard and Blowout Coronal Jets Observed in a Polar Coronal Hole
- Multi-stage reconnection powering a solar coronal jet
- Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
- Data-constrained 3D MHD Simulation of a Spiral Jet Caused by an Unstable Flux Rope Embedded in Fan-spine Configuration