Which of the following greatly improves the angular resolution of radio maps?
A) Schmidt corrector plates
B) More sensitive spectrometers
C) Switching from film to CCD imaging
D) Use of interferometers
E) Chilling the infrared detectors
Answer: D
Which of the following greatly improves the angular resolution of radio maps?
A) Schmidt corrector plates
B) More sensitive spectrometers
C) Switching from film to CCD imaging
D) Use of interferometers
E) Chilling the infrared detectors