Radio Astronomy – Page 30 – National Radio Astronomy Observatory

How Does One Measure the Flux of a Radio Source?

Question: How to measure the flux density of radio sources in the sky, using single dish, VLA, or VLBA？…

Question: I visited the VLA site west off Socorro N.M. yesterday mid-day. Wonderful environment. When reading about the electromagnetic…

Question: Several of your articles about ALMA refer to millimeter-wavelength signals received by the radio telescope as “light.” I…

Question: Suppose there is a diffraction screen (DS)，a lot of small holes scattering on it, a bundle of parallel…

Question: I have a old satellite dish in the yard [that I] wanted to use for radio astronomy for…

Question: I have read that radio astronomers are able to detect velocities in the objects they study and report…

The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
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