论文标题
银河中心的紧凑无线电源人群
A Population of Compact Radio Sources at the Galactic Center
论文作者
论文摘要
在5.5和9 GHz的A，B和C阵列构型中观察到了银河中心的无线电明亮区（RBZ）。通过在CASA开发的高动力范围成像的过程中，我们构建了深度图像，最高为0.2英寸，达到了RMS的噪声，从5.5和9 GHz的高分辨率和高动力学范围的图像中获得了几美元的噪声。 RBZ的来源可能是与中子星和/或恒星质量黑洞相关的高能物体的候选者。
The radio bright zone (RBZ) at the Galactic center has been observed with the JVLA in the A, B and C array configurations at 5.5 and 9 GHz. With a procedure for high-dynamic range imaging developed on CASA, we constructed deep images a resolution up to 0.2", achieving rms noises of a few $μ$Jy/beam. From the high-resolution and high-dynamics range images at 5.5 and 9 GHz, a population of compact radio sources ranging from a few mJy to a few tens $μ$Jy in flux density is revealed. The steep-spectrum radio sources in RBZ are likely the candidates of high-energy objects that are associated with neutron stars and/or stellar mass black holes at the Galactic center. We report new results of the Cannonball and Galactic center transient (GCT).
