Search for X-ray emission from bursting radio sources

摘要: Results are reported for a systematic search with the A-2 experiment aboard HEAO 1 X-ray emission from 28 radio sources that were actually bursting at epoch of observations. Two these found to lie within positional errors sources: moderately redshifted quasars NRAO 140 and 530. The positions 30 historically variable not active time compared those detectable sources, but no is detected any positions. implications results discussed in terms models compact extragalactic sources. Several possible explanations presented general absence Compton surveyed.