Search Results for author:
Found 9 papers, 5 papers with code
Light echos and coherent autocorrelations in a black hole spacetime
We explore the coherent temporal autocorrelation function measured at a single telescope.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
Testing General Relativity with the Black Hole Shadow Size and Asymmetry of Sagittarius A*: Limitations from Interstellar Scattering
This resolution may soon enable measurement of the black hole "shadow" size and asymmetry, predicted to be ${\approx}50\,\mu$as and ${\lesssim} 3\,\mu$as, respectively.
Instrumentation and Methods for Astrophysics Astrophysics of Galaxies
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
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
Quantifying Intrinsic Variability of Sagittarius A* using Closure Phase Measurements of the Event Horizon Telescope
Turbulent evolution within the accretion disk is expected on timescales comparable to the orbital period, typically an order of magnitude larger than $t_G$.
High Energy Astrophysical Phenomena
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
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
Computational Imaging for VLBI Image Reconstruction
Very long baseline interferometry (VLBI) is a technique for imaging celestial radio emissions by simultaneously observing a source from telescopes distributed across Earth.
