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Radio Astronomy

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Reference for Pulsar Spin Frequency and First Derivative for All Detected Pulsars

Question: Please, how do I get data values of the spin frequency first derivative of all detected pulsars at…

Are the American Flags Planted on the Moon by the Apollo Missions Bleached by the Sun?

Question: Hi, is it true that the flags put on the moon during the Apollo landings are now bleached…

How Does One Identify Radio Frequency Interference in Astronomical Measurements?

Question: Hello. This question falls under radio astronomy. I’m currently working on a project involving python programming. The goal…

How to Calculate the RMS From a Dual-Polarization Measurement When the System Temperatures Differ

Question: Nowadays, the receiver of radio telescope could receive 2 polarizations (e.g. LC and RC). Then, when we use…

Reference for a Good Introduction to Synthesis Imaging in Radio Astronomy

Question: Hi, I am learning the radio astronomy imaging under the coexistence with the wireless communication. Could you please…

A Question About the CLEAN Algorithm

Question: What is the difference between clean on image domain and clean on visibility domain? I heard that it…

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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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