Search Results
Event Horizon Telescope observations of the jet launching and collimation in Centaurus A
We find that Centaurus A's source structure resembles the jet in Messier 87 on ${\sim}500r_g$ scales remarkably well.
Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena
First M87 Event Horizon Telescope Results. VII. Polarization of the Ring
We perform quantitative measurements of relevant polarimetric properties of the compact emission and find evidence for the temporal evolution of the polarized source structure over one week of EHT observations.
High Energy Astrophysical Phenomena Astrophysics of Galaxies
Using evolutionary algorithms to model relativistic jets: Application to NGC 1052
The detailed analysis of our simulations shows that the structure and properties of the observed relativistic jets in NGC 1052 can be reconstructed by a slightly over-pressured jet ($d_k\sim1. 5$) embedded in a decreasing pressure ambient medium
High Energy Astrophysical Phenomena Astrophysics of Galaxies
SYMBA: An end-to-end VLBI synthetic data generation pipeline
These studies are important when proposing observations of new sources, in the characterization of the capabilities of new or upgraded instruments, and when verifying model-based theoretical predictions in a comparison with observational data.
Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena
High Resolution Linear Polarimetric Imaging for the Event Horizon Telescope
Polarimetric MEM is thus an attractive choice for image reconstruction with the
Instrumentation and Methods for Astrophysics Astrophysics of Galaxies
Stochastic Optics: A Scattering Mitigation Framework for Radio Interferometric Imaging
We present a scattering mitigation framework for radio imaging with very long baseline interferometry (VLBI) that partially overcomes this limitation.
Instrumentation and Methods for Astrophysics Astrophysics of Galaxies
Reconstructing Video from Interferometric Measurements of Time-Varying Sources
Most recently, the Event Horizon Telescope (EHT) has extended VLBI to short millimeter wavelengths with a goal of achieving angular resolution sufficient for imaging the event horizons of nearby supermassive black holes.
Dynamical Imaging with Interferometry
By linking widely separated radio dishes, the technique of very long baseline interferometry (VLBI) can greatly enhance angular resolution in radio astronomy.
Instrumentation and Methods for Astrophysics
Interferometric Imaging Directly with Closure Phases and Closure Amplitudes
Closure-only imaging provides results that are as non-committal as possible and allows for reconstructing an image independently from separate amplitude and phase self-calibration.
Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena
A Model for Anisotropic Interstellar Scattering and its Application to Sgr A*
For expected values of the inner scale, the scattering kernel for all models is markedly non-Gaussian at 1. 3 mm but is straightforward to calculate and depends only weakly on the assumed model for the wandering of the magnetic field direction.
High Energy Astrophysical Phenomena
