Mileura Widefield Array--Low Frequency Demonstrator 原型天线瓦片的现场部署
天体物理学
2008-11-26 v2
摘要
对 Mileura Widefield Array--Low Frequency Demonstrator (MWA-LFD) 的原型天线瓦片进行了实验，以更好地理解其设计的宽场、宽带特性，并在澳大利亚西部地区 characterize 80-300 MHz 之间的射频干扰 (RFI)。在六个月的部署期间获得的观测确认了天线的预测灵敏度、天空噪声主导的系统温度以及相位一致的干涉测量。射电光谱 remarkably free of strong terrestrial signals，仅有两个窄频段分配给卫星下行链路，以及罕见的因地面传输反射到飞机和气象尾迹中出现的脉冲。结果表明，MWA-LFD 在其三个关键科学目标方面：重新化学时代科学、日球科学和射电瞬变检测方面，具有实现重大成就的潜力。
引用
@article{arxiv.astro-ph/0611751,
title = {Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array--Low Frequency Demonstrator},
author = {Judd D. Bowman and David G. Barnes and Frank H. Briggs and Brian E. Corey and Merv J. Lynch and N. D. Ramesh Bhat and Roger J. Cappallo and Sheperd S. Doeleman and Brian J. Fanous and David Herne and Jacqueline N. Hewitt and Chris Johnston and Justin C. Kasper and Jonathon Kocz and Eric Kratzenberg and Colin J. Lonsdale and Miguel F. Morales and Divya Oberoi and Joseph E. Salah and Bruce Stansby and Jamie Stevens and Glen Torr and Randall Wayth and Rachel L. Webster and J. Stuart B. Wyithe},
journal= {arXiv preprint arXiv:astro-ph/0611751},
year = {2008}
}
备注
Accepted by AJ. 17 pages with figures