A NASA project named ARISE (Advanced Radio Interferometry between Space and Earth) proposes to place a radio telescope into an even higher orbit than the Japanese HALCA telescope. Using this telescope in concert with the VLBA, baseline as long as 50,000 km may be obtainable. Astronomers want to use this combination to study radio emission at a frequency of 1665 MHz from distant objects called quasars.
(a) What is the wavelength of this emission?
(b) Taking the baseline to be the effective diameter of this radio-telescope array, what angular resolution can be achieved?