249 citations · 621 across the 11 of their papers we have counts for
11 papers
Explicit form of the random field spectral representation and some applications
A. Chepurnov
We present here an explicit form of the random spectral measure element, what allows us to express a stationary random field as a stochastic integral explicitly depending on its po…
Identification of MHD compressible modes in interstellar plasma with synchrotron emission polarization
Alexey Chepurnov, Reinaldo Santos de Lima, Sarah Appleby
We provide a procedure for identification of dominating compressible and Alfvenic MHD modes or isotropic turbulence in synchrotron emission polarization maps of Galactic objects. T…
Identification of plasma modes in Galactic turbulence with synchrotron polarization
Heshou Zhang, Alexey Chepurnov, Huirong Yan +3
Magneto-hydrodynamic (MHD) turbulence is ubiquitous and a fundamental ingredient underlying many astrophysical phenomena. The multiphase nature of interstellar medium and diversity…
The Turbulence Velocity Power Spectrum of Neutral Hydrogen in the Small Magellanic Cloud
Alexey Chepurnov, Blakesley Burkhart, Alex Lazarian +1
We present the results of the Velocity Coordinate Spectrum (VCS) technique to calculate the velocity power spectrum of turbulence in the Small Magellanic Cloud (SMC) in 21cm emissi…
Extending Big Power Law in the Sky with Turbulence Spectra from WHAM data
A. Chepurnov, A. Lazarian
We use the data of Wisconsin H Mapper (WHAM) to test the hypothesis of whether the amplitudes and spectrum of density fluctuations measured by WHAM can be matched to the data ob…
Turbulence Spectra from Doppler-broadened Spectral Lines: Tests of the Velocity Channel Analysis and Velocity Coordinate Spectrum Techniques
A. Chrupnov, A. Lazarian
Turbulent motions induce Doppler shifts of observable emission and absorption lines motivating studies of turbulence using precision spectroscopy. We provide the numerical testing…