后发星系团的深低频图像

D. Lal, C. Ishwara-Chandra
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引用次数: 0

摘要

我们将利用升级后的巨型米波射电望远镜来绘制射电发射图,以实现后发星系团的高灵敏度、高分辨率、高动态范围的映射。我们将展示后发星团的低无线电频率,400 MHz成像与升级的GMRT波段3,这是一个重要的“实验室”,研究星团环境对星团中射电源特性的作用。图像的角分辨率为5弧秒,均方根为28微焦。我们在直径2.9度的圆形区域内探测到100多个扩展源,并确定了许多活动星系核,其中包括首次探测到的三个源。这一努力的早期结果将会出现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Deep low frequency image of Coma cluster of galaxies
We would present our efforts to map radio emission using the upgraded Giant Metrewave Radio Telescope in order to achieve high sensitivity, high resolution, high dynamic range mapping of the Coma cluster of galaxies. We will present low radio frequency, 400 MHz imaging with band-3 of upgraded GMRT, of the Coma cluster, an important ‘laboratory’ to study the role of cluster environment on the properties of the radio sources in the cluster. The image has an angular resolution of 5 arcsec and an rms of 28 microJy. We detected more than 100 extended sources within a circular region of diameter 2.9 deg and identify numerous active galactic nuclei, including new detections for the first time for three sources. Early results from this effort would be presented.
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