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| Paper: |
A Population of Compact Radio Sources at the Galactic Center |
| Volume: |
528, New Horizons in Galactic Center Astronomy and Beyond |
| Page: |
125 |
| Authors: |
Zhao, J.-H.; Morris, M. R.; Goss, W. M. |
| Abstract: |
The Radio Bright Zone (RBZ) at the Galactic center has been observed with the JVLA at 5.5 and 9 GHz. With a procedure for high-dynamic-range (HDR) imaging developed on CASA, we constructed deep images at a resolution of 0.2", achieving rms noises of a few μJy/beam. From the high-resolution and HDR images at 5.5 and 9 GHz, a population of compact radio sources ranging from a few mJy to a few tens μJy in flux density is revealed. The steep-spectrum radio sources in the RBZ are likely the candidate high-energy objects that are associated with neutron stars and/or stellar mass black holes at the Galactic center along with an admixture of extragalactic sources. We report new results on the Cannonball and Galactic Center Transient (GCT). |
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