Astronomy & Space Science · AST-859
Radio Astronomy, ALMA & Interferometric Arrays: Observation, Measurement & Evidence
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Evidence
Evidence for Radio Astronomy, ALMA & Interferometric Arrays
Interferometric observations resolve protoplanetary disk rings, molecular clouds, distant galaxies, stellar atmospheres, and horizon-scale structures when very-long-baseline networks are used.
Evidence behind this section3 claims
Radio astronomy measures wavelengths from millimeters to meters that reveal cold molecular gas, synchrotron radiation, pulsars, jets, the CMB, and many sources hidden from optical view.
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References & evidence
Source library for this chapter
These are the linked sources supporting the verified claims used throughout the lesson.
- 01About ALMAOpen source ↗
ALMA Observatory
- 02Telescopes TodayOpen source ↗
OpenStax Astronomy 2e
View claim-by-claim traceability3 verified claims
Radio astronomy measures wavelengths from millimeters to meters that reveal cold molecular gas, synchrotron radiation, pulsars, jets, the CMB, and many sources hidden from optical view.
supported · checked Sep 22, 2026The relative arrival phase of a wavefront at separated antennas encodes source direction and structure.
supported · checked Sep 22, 2026Interferometric observations resolve protoplanetary disk rings, molecular clouds, distant galaxies, stellar atmospheres, and horizon-scale structures when very-long-baseline networks are used.
supported · checked Sep 22, 2026