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- University of Wisconsin–MadisonUS430 papers
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6 papers · 2 filters
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…
Two modes of carbonaceous dust alignment
A. Lazarian
Radiative Torques (RATs) or Mechanical Torques (METs) acting on irregular grains can induce the alignment of dust grains in respect to the alignment axis (AA), which can be either…
Study Turbulence and Probe Magnetic Field Using Gradients Technique: Application to HI-to-H2 Transition Regions
Yue Hu, A. Lazarian, Shmuel Bialy
The atomic-to-molecular (HI-to-H) transition in photodissociation regions (PDRs) has been investigated over the last several decades through analytic and numerical modeling. Ho…
The Effect of Bars on the Ionized ISM: Optical Emission Lines from Milky Way Analogs
Dhanesh Krishnarao, Christy Tremonti, Amelia Fraser-McKelvie +15
Gas interior to the bar of the Milky Way has recently been shown as the closest example of a Low Ionization (Nuclear) Emission Region--LI(N)ER--in the universe. To better understan…
Alignment of irregular grains by radiative torques: efficiency study
Joonas Herranen, A. Lazarian, Thiem Hoang
We study the efficiency of grain alignment by radiative torques (RATs) for an ensemble of irregular grains. The grains are modeled as ensembles of oblate and prolate spheroids, def…
Turbulence in a self-gravitating molecular cloud core
Siyao Xu, Alex Lazarian
Externally driven interstellar turbulence plays an important role in shaping the density structure in molecular clouds. Here we study the dynamical role of internally driven turbul…