论文标题
使用VLBI射门标准（VERA）的超速段极化表的演示
Demonstration of Ultrawideband Polarimetry Using VLBI Exploration of Radio Astrometry (VERA)
论文作者
论文摘要
我们报告了日本非常长的基线干涉法（VLBI）项目的四个20 m射电望远镜的前端和后端技术发展，即射射弹仪（VERA）的VLBI探索。我们简要概述了双子两极化接收和超速段（16 giga bit s $^{ - 1} $）录制系统，该记录系统安装在22和43 GHz频段运行的四个望远镜上。更宽的波段能力提高了VLBI观测值对连续发射的敏感性，并且双极化能力可以研究在活性银河系核中从超级质量黑洞中弹出的相对论射击中的磁场，并在恒星形成和周围的恒星和演变的恒星中研究。我们介绍了从最新的测试观察结果获得的22和43 GHz时，我们介绍了在22和43 GHz的线性极化强度图，以显示Vera极化观测的最新现状。在本文结尾处，鉴于VLBI偏振法实现了Vera，我们描述了科学目标和进一步技术发展的未来前景。
We report on recent technical developments in the front- and back-ends for the four 20 m radio telescopes of the Japanese Very-Long-Baseline Interferometry (VLBI) project, VLBI Exploration of Radio Astrometry (VERA). We present a brief overview of a dual-circular polarization receiving and ultrawideband (16 Giga bit s$^{-1}$) recording systems that were installed on each of the four telescopes operating at 22 and 43 GHz bands. The wider-band capability improves the sensitivity of VLBI observations for continuum emission, and the dual-polarization capability enables the study of magnetic fields in relativistic jets ejected from supermassive black holes in active galactic nuclei and in sites of star formation and around evolved stars. We present the linear polarization intensity maps of extragalactic sources at 22 and 43 GHz obtained from the most recent test observations to show the state of the art of the VERA polarimetric observations. At the end of this article, given the realization of VLBI polarimetry with VERA, we describe the future prospects for scientific aims and further technical developments.
