低频射电极化的挑战：来自默奇森宽场阵列的经验
天体物理仪器与方法
2017-10-04 v1
摘要
我们介绍了为进行极化测量而开发的用于校准和校正默奇森宽场阵列（MWA）低频（72-300 MHz）射电观测的技术。MWA 提供的极宽视场、出色的瞬时 (u, v) 覆盖以及对度级结构的灵敏度，使得可以通过成像技术进行仪器校准、仪器伪影去除以及电离层法拉第旋转校正。凭借 MWA 已展示的极化测量能力，我们讨论了低频极化科学的未来方向，以回答与偏振源计数、源退偏振、脉冲星科学、低质量恒星、系外行星、星际与星系际介质性质以及太阳环境相关的突出问题。
引用
@article{arxiv.1708.05799,
title = {The challenges of low-frequency radio polarimetry: lessons from the Murchison Widefield Array},
author = {Emil Lenc and C. S. Anderson and N. Barry and J. D. Bowman and I. H. Cairns and J. S. Farnes and B. M. Gaensler and G. Heald and M. Johnston-Hollitt and D. L. Kaplan and C. R. Lynch and P. I. McCauley and D. A. Mitchell and J. Morgan and M. F. Morales and T. Murphy and A. R. Offringa and S. M. Ord and B. Pindor and C. Riseley and E. M. Sadler and C. Sobey and M. Sokolowski and I. S. Sullivan and S. P. O'Sullivan and X. H. Sun and S. E. Tremblay and C. M. Trott and R. B. Wayth},
journal= {arXiv preprint arXiv:1708.05799},
year = {2017}
}
备注
18 pages, 11 figures, accepted for publication in PASA