441 citations · 3.5k across the 78 of their papers we have counts for
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Pixelization and Dynamic Range in Radio Interferometry
W. D. Cotton, Juan M. Uson
This study investigates some of the consequences of representing the sky by a rectangular grid of pixels on the dynamic range of images derived from radio interferometric measureme…
The jet of Markarian 501 from millions of Schwarzschild radii down to a few hundreds
M. Giroletti, G. Giovannini, W. D. Cotton +4
Aims: The TeV BL Lac object Markarian 501 is a complex, core dominated radio source, with a one sided, twisting jet on parsec scales. In the present work, we attempt to extend our…
A Wide-area VLA Continuum Survey near the Galactic Center at 6 and 20 cm Wavelengths
C. J. Law, F. Yusef-Zadeh, W. D. Cotton
We describe the results of a mJy-sensitivity, VLA survey of roughly 1 square degree near the Galactic center at 6 and 20 cm. Catalogs of compact and filamentary structures are give…
Simultaneous Chandra, CSO and VLA Observations of Sgr A*: The Nature of Flaring Activity
F. Yusef-Zadeh, M. Wardle, C. Heinke +4
Sgr A*, the massive black hole at the center of the Galaxy, varies in radio through X-ray emission on hourly time scales. The flare activity is thought to arise from the innermost…
The Variability of Polarized Radiation from Sgr A*
F. Yusef-Zadeh, M. Wardle, W. D. Cotton +2
Sgr A* is variable at radio and submillimeter wavelengths on hourly time scales showing time delays between the peaks of flare emission as well as linearly polarized emission at mi…
Resolving the innermost parsec of Centaurus A at mid-infrared wavelengths
K. Meisenheimer, K. R. W. Tristram, W. Jaffe +11
We report the results of interferometric observations of Centaurus A with the MID-infrared Interferometer (MIDI) at ESO's VLTI telescope array. The interferometric measurements are…