Multiwavelength Observations of Relativistic Jets from General
  Relativistic Magnetohydrodynamic Simulations
  This work summarizes a program intended to unify three burgeoning branches of
the high-energy astrophysics of relativistic jets: general relativistic
magnetohydrodynamic (GRMHD) simulations of ever-increasing dynamical range, the
microphysical theory of particle acceleration under relativistic conditions,
and multiwavelength observations resolving ever-decreasing spatiotemporal
scales. The process, which involves converting simulation output into time
series of images and polarization maps that can be directly compared to
observations, is performed by (1) self-consistently prescribing models for
emission, absorption, and particle acceleration and (2) performing
time-dependent polarized radiative transfer. M87 serves as an exemplary
prototype for this investigation due to its prominent and well-studied jet and
the imminent prospect of learning much more from Event Horizon Telescope (EHT)
observations this year. Synthetic observations can be directly compared with
real observations for observational signatures such as jet instabilities,
collimation, relativistic beaming, and polarization. The simplest models
described adopt the standard equipartition hypothesis; other models calculate
emission by relating it to current density or shear. These models are intended
for application to the radio jet instead of the higher frequency emission, the
disk and the wind, which will be subjects of future investigations.
