LOFAR observations of X-ray cavity systems
LOFAR observations of X-ray cavity systems
We present LOFAR observations at 120-168 MHz of 42 systems with possible X-ray cavities in their hot atmosphere, of which 17 are groups or ellipticals, 19 are nearby clusters (z<0.3), and six are higher-redshift clusters (z>0.3). The X-ray cavities, formed by the radio lobes of the central active galactic nucleus …