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A Resolved Ring of Debris Dust Around the Solar Analog HD 107146
S. A. Corder, J. M. Carpenter, A. I. Sargent +13
We present resolved images of the dust continuum emission from the debris disk around the young (80-200 Myr) solar-type star HD 107146 with CARMA at 1.3 mm and the CSO at 350…
Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
Sheperd Doeleman, Jonathan Weintroub, Alan E. E. Rogers +25
The cores of most galaxies are thought to harbour supermassive black holes, which power galactic nuclei by converting the gravitational energy of accreting matter into radiation (r…
Molecular Gas in the z=1.2 Ultraluminous Merger GOODS J123634.53+621241.3
David T. Frayer, Jin Koda, Alexandra Pope +14
We report the detection of CO(2-1) emission from the z=1.2 ultraluminous infrared galaxy (ULIRG) GOODS J123634.53+621241.3 (also known as the sub-millimeter galaxy GN26). These obs…
Observations of High-Redshift X-Ray Selected Clusters with the Sunyaev-Zel'dovich Array
Stephen Muchovej, John E. Carlstrom, John Cartwright +14
We report measurements of the Sunyaev-Zel'dovich (SZ) effect in three high-redshift (0.89 < z < 1.03), X-ray selected galaxy clusters. The observations were obtained at 30 GHz duri…
Polarizing Grids, Their Assemblies and Beams of Radiation
Martin Houde, Rachel L. Akeson, John E. Carlstrom +3
This article gives an analysis of the behavior of polarizing grids and reflecting polarizers by solving Maxwell's equations, for arbitrary angles of incidence and grid rotation, fo…
Structure of Sagittarius A* at 86 GHz using VLBI Closure Quantities
S. S. Doeleman, Z. -Q. Shen, A. E. E. Rogers +9
At radio wavelengths, images of the compact radio source Sagittarius A* (Sgr A*) in the Galactic Center are scatter broadened with a lambda^2 dependence due to an intervening ioniz…