Radio Emission from Compact Objects

Abstract

Abstract. Compact radio stars are associated with both galaxies and quasi-stellar objects; and there appears to be no way to distinguish between the radio galaxies and the quasi-stellar radio sources from their radio properties alone.The compact radio sources are opaque at the longer radio wavelengths and have spectra that are either peaked or complex. They have a complex brightness distribution and often contain compo nents less than 0.001 arc sec in size.Many of the compact sources show large intensity variations and in NGC 1275 there is evidence for a change in the angular size during one year.

The Space Distribution of Radio Sources Based on Short Wavelength Surveys

“…It is also claimed that the results are independent of the nature of the red-shift, although as indicated below this may be contested. Because of the absence of distance information and the broad luminosity function, the counts are not easy to interpret and distance-dependent phenomena are difficult to unravel from peculiarities of the luminosity function, e.g., [2,3].…”