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Plasma Astrophysics — Research

Source: H. Yan
Barplot of energy fracs in MHD turbulence

MHD and plasma processes

MHD processes and plasma instabilities in astrophysics are not only the fundamental properties of the space plasma, but also very interesting because of the unique conditions that can never be realized in laboratory, e.g., huge size span, collisionless, extreme temperatures.

Source: H. Yan
Barplot of energy fracs in MHD turbulence
Source: Zhang & Yan 2011

Solar flares, High Energy Astrophysics

High energy phenomena ranging from solar flares to gamma ray bursts.

We seek to incorporate our understandings on basic particle plasma interactions to various high energy phenomena.

Source: Zhang & Yan 2011
Source: H. Yan
Particle rotate

Cosmic ray acceleration and transport

we study the fundamental plasma processes that govern the particle transport and acceleration in various astrophysical settings, the interaction with MHD turbulence, waves, etc.

 

 

Source: H. Yan
Particle rotate
Source: H. Yan
The first 3D magnetic field detection with atomic alignment

Astrophysical Magnetic Fields:  dynamics and detections

Astrophysical Magnetic fields as glue of astrophysical plasma, magnetic field is out of question one of the key properties that we want to know.

We investigate various ways to detect magnetic fields and their dynamics (turbulence), in particular, in the diffuse media.

Source: H. Yan
The first 3D magnetic field detection with atomic alignment
Source: Ge, He, Yan 2016
Chemistry evolution owing to dust dynamics in turbulence

Interstellar Dust Dynamics

Dust grain is one of the key components in interstellar medium.

They are intimately linked to the magnetic field and plasma as charge carriers in addition to their major rules in metallically and light propagation. All those are much determined by their dynamics, which we investigate.

 

 

Source: Ge, He, Yan 2016
Chemistry evolution owing to dust dynamics in turbulence