202 citations · 2.9k across the 85 of their papers we have counts for
11 papers · 1 filter
On the accuracy of the ALMA flux calibration in the time domain and across spectral windows
Logan Francis, Doug Johnstone, Gregory Herczeg +2
A diverse array of science goals require accurate flux calibration of observations with the Atacama Large Millimeter/Submillimeter array (ALMA), however, this goal remains challeng…
VLBI20-30: a scientific roadmap for the next decade -- The future of the European VLBI Network
Tiziana Venturi, Zsolt Paragi, Michael Lindqvist +77
This white paper describes the science case for Very Long Baseline Interferometry (VLBI) and provides suggestions towards upgrade paths for the European VLBI Network (EVN). The EVN…
Advanced Gain Calibration Techniques in Radio Interferometry
Crystal L. Brogan, Todd R. Hunter, Ed B. Fomalont
In this lecture, we describe a number of advanced gain calibration techniques. In particular, self-calibration is an important tool in interferometric imaging at all wavelengths. I…
Analysis of antenna position measurements and weather station network data during the ALMA Long Baseline Campaign of 2015
Todd R. Hunter, Robert Lucas, Dominique Broguiere +5
In a radio interferometer, the determination of geometrical antenna positions relies on accurate calibration of the dry and wet delay of the atmosphere above each antenna. For the…
Antennas and Receivers in Radio Interferometry
Todd R. Hunter, Peter J. Napier
The primary antenna elements and receivers are two of the most important components in a synthesis telescope. Together they are responsible for locking onto an astronomical source…
Statistical Topics Concerning Radiometer Theory
Todd R. Hunter, Robert Kimberk
We present a derivation of the radiometer equation based on the original references and fundamental statistical concepts. We then perform numerical simulations of white noise to il…