a. is the highest resolution optical telescope ever built
b. is located in Arecibo, Puerto Rico
c. Is a matched pair of 8 m telescopes, one of which is in Chile and the other in Hawaii
d. is an air-borne infrared telescope
e. is a set of radia telescopes linked together electronically to provide very high resolution
2007-03-07 06:31:52 · 3 answers · asked by nicky 1 in Science & Mathematics ➔ Astronomy & Space
The answer is E.
By combining the radio images from separate telescopes, astronomers can emulate a telescope as large as the distance between the telescopes. For radio telescopes, the area of the antenna determines the sensitivity of the telescope, while the distance across the antenna determines the resolution. By using VLBI techniques, astronomers can in effect get the same resolution they'd get with an impossibly large telescope.
2007-03-07 09:18:23 · answer #1 · answered by Jonathan S 2 · 0⤊ 0⤋
The answer being sought is E.
The distance between Radio telescopes continues to grow. Satellite based Radio telescopes are now use a base line measured in astronomical units rather than miles.
2007-03-10 23:12:26 · answer #2 · answered by anonimous 6 · 0⤊ 0⤋
Hi Answer 1 is correct. http://www.answers.com/topic/very-long-baseline-interferometry but optical telescopes can also be used in the same manner. The Keck telescopes http://en.wikipedia.org/wiki/Keck_Interferometer do this optically and if your question did not mention VERY long baseline, answer a could also be correct.
2007-03-09 22:38:14 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋