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140 papers
Gradient measurement of synchrotron polarization diagnostic: Application to spatially separated emission and Faraday rotation regions
Ru-Yue Wang, Jian-Fu Zhang, Alex Lazarian +2
Considering the spatially separated polarization radiation and Faraday rotation regions to simulate complex interstellar media, we study synchrotron polarization gradient technique…
Multi-scale Magnetic Fields in the Central Molecular Zone: Inference from the Gradient Technique
Yue Hu, A. Lazarian, Q. Daniel Wang
The central molecular zone (CMZ) plays an essential role in regulating the nuclear ecosystem of our Galaxy. To get an insight into the magnetic fields of the CMZ, we employ the Gra…
Intermittency of Fast MHD Modes and Regions of Anomalous Gradient Orientation in Low-beta Plasmas
Ka Wai Ho, Alex Lazarian
The strong alignment of small-scale turbulent Alfvénic motions with the direction of the magnetic field that percolates the small-scale eddies and imprints the direction of the mag…
Revealing Gravitational Collapse in Serpens G3-G6 Molecular Cloud using Velocity Gradients
Yue Hu, A. Lazarian, Snezana Stanimirovic
The relative role of turbulence, magnetic fields, self-gravity in star formation is a subject of intensive debate. We present IRAM 30m telescope observations of the CO (1-0)…
Technique for separating velocity and density contributions in spectroscopic data and its application to studying turbulence and magnetic fields
Ka Ho Yuen, Ka Wai Ho, Alex Lazarian
Based on the theoretical description of Position-Position-Velocity(PPV) statistics in Lazarian & Pogosyan(2000), we introduce a new technique called the Velocity Decomposition Algo…
Anisotropies in Compressible MHD Turbulence: Probing Magnetic Fields and Measuring Magnetization
Yue Hu, Siyao Xu, A. Lazarian
Probing magnetic fields in the interstellar medium (ISM) is notoriously challenging. Motivated by the modern theories of magnetohydrodynamic (MHD) turbulence and turbulence anisotr…