使用LOFAR的长基线实验
Long baseline experiments with LOFAR
摘要:
我提出了LOFAR观测的第一个结果与国际基线。一个重要的基石是探测到第一个长基线条纹。他们的分析结果是非常有用的调查和解决一些技术问题的仪器。从单基线延迟/条纹率光谱创建天空的粗地图,并与短基线合成地图进行比较。第一个长基线LBA图像显示的源3C 196,一个明亮的类星体,其子组件只能与长基线解决。相应的亚弧秒HBA图像还没有显示相同数量的细节,但HBA结果预计很快就会显着改善。3C 196的LBA长基线图像包括有史以来以这种低频制作的最高分辨率的无线电地图。
英文摘要:
I present first results of LOFAR observations with international baselines. An important cornerstone was the detection of the first long-baseline fringes. Their analysis turns out to be extremely useful to investigate and solve a number of technical issues of the instrument. Crude maps of the sky are created from single-baseline delay/fringe-rate spectra and compared with a short-baseline synthesis map. First long-baseline LBA images are shown of the source 3C196, a bright quasar whose sub-components can only be resolved with the long baselines. The corresponding sub-arcsec HBA image does not show the same amount of details yet, but HBA results are expected to improve significantly very soon. The LBA long-baseline image of 3C196 comprises the highest-resolution radio map ever produced at this low frequency.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。