Search Results for author: Freek Roelofs

Found 3 papers, 2 papers with code

Reconstructing Video from Interferometric Measurements of Time-Varying Sources

1 code implementation • 3 Nov 2017 • Katherine L. Bouman, Michael D. Johnson, Adrian V. Dalca, Andrew A. Chael, Freek Roelofs, Sheperd S. Doeleman, William T. Freeman

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.

Image Imputation Radio Interferometry

5,279

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Dynamical Imaging with Interferometry

1 code implementation • 3 Nov 2017 • Michael D. Johnson, Katherine L. Bouman, Lindy Blackburn, Andrew A. Chael, Julian Rosen, Hotaka Shiokawa, Freek Roelofs, Kazunori Akiyama, Vincent L. Fish, Sheperd S. Doeleman

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

5,279

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Quantifying Intrinsic Variability of Sagittarius A* using Closure Phase Measurements of the Event Horizon Telescope

no code implementations • 3 Aug 2017 • Freek Roelofs, Michael D. Johnson, Hotaka Shiokawa, Sheperd S. Doeleman, Heino Falcke

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

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