The Square Kilometers Array (SKA) is a set of thousands of radio dipole antennae and telescope dishes that is planned to be build, starting in 2016. It is to spread out over a distance of more then 3000 km. The combined signals will have a resolving power equivalent to that of an aperture of approximately 1000 km (a) If the detector are turned to a frequency of , what is the angular resolution of SKA? (b) Clouds of interstellar hydrogen radiate at a frequency used in part (a). What must be the separation distance of two clouds at the center of galaxy, 26000 light years away, if they are to be resolved?

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter4: Diffraction
Section: Chapter Questions
Problem 102AP: Radio telescopes are telescopes used for the detection of radio emission from space. Because radio...
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The Square Kilometers Array (SKA) is a set of thousands of radio dipole antennae and telescope dishes that is planned to be build, starting in 2016. It is to spread out over a distance of more then 3000 km. The combined signals will have a resolving power equivalent to that of an aperture of approximately 1000 km (a) If the detector are turned to a frequency of , what is the angular resolution of SKA? (b) Clouds of interstellar hydrogen radiate at a frequency used in part (a). What must be the separation distance of two clouds at the center of galaxy, 26000 light years away, if they are to be resolved?

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