radioastronomisia
Radioastronomisia, or radio astronomy, is the branch of astronomy that studies celestial objects by detecting radio-frequency radiation emitted or reflected by them. It covers a wide range of wavelengths from meters to millimeters and beyond, including both continuum emission and spectral lines such as the 21 cm line of neutral hydrogen. Radio observations can reveal phenomena that are faint or obscured at optical wavelengths, such as cold interstellar gas, synchrotron radiation from cosmic rays, and fast-moving or distant sources.
The field began in the 1930s with Karl Jansky’s discovery of galactic radio emission and rapidly expanded
Common methods involve aperture synthesis and very long baseline interferometry to achieve high angular resolution, along
Major facilities and projects include ground-based arrays such as the Very Large Array, Parkes, Effelsberg, LOFAR,