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Brightness Distributions of Radio Sources at 2-Centimeter Wavelength

Stanley H. Zisk
Science
New Series, Vol. 153, No. 3740 (Sep. 2, 1966), pp. 1107-1109
Stable URL: http://www.jstor.org/stable/1719157
Page Count: 3
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Brightness Distributions of Radio Sources at 2-Centimeter Wavelength
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Abstract

Maps have been made of the 2-centimeter brightness distribution of M17, Cassiopeia-A, Taurus-A, and Orion nebula with a resolution of 2.3 minutes of arc, revealing several newly resolved features. M17 is a double thermal source. Some structure appears in Cassiopeia-A, including a suggestion of a ring shape. Taurus-A exhibits a brightness map similar to that obtained in earlier low-frequency results. The central part of Orion nebula is circularly symmetric to a high degree of accuracy.

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