Based on our deep image of Sgr A using broadband data observed with the Jansky VLA The Jansky Very Large Array ( JVLA ) is operated by the National Radio Astronomy Observatory ( NRAO ) .
The NRAO is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities , Inc . at 6 cm , we present a new perspective of the radio bright zone at the Galactic center .
We further show the radio detection of the X-ray Cannonball , a candidate neutron star associated with the Galactic center SNR Sgr A East .
The radio image is compared with the Chandra X-ray image to show the detailed structure of the radio counterparts of the bipolar X-ray lobes .
The bipolar lobes are likely produced by the winds from the activities within Sgr A West , which could be collimated by the inertia of gas in the CND , or by the momentum driving of Sgr A* ; and the poloidal magnetic fields likely play an important role in the collimation .
The less-collimated SE lobe , in comparison to the NW one , is perhaps due to the fact that the Sgr A East SN might have locally reconfigured the magnetic field toward negative galactic latitudes .
In agreement with the X-ray observations , the time-scale of \sim 1 \times 10 ^ { 4 } yr estimated for the outermost radio ring appears to be comparable to the inferred age of the Sgr A East SNR .