LOFAR：低频阵列
天体物理仪器与方法
2015-06-15 v2
摘要
LOFAR（低频阵列）是一种新一代射电干涉仪，建造于荷兰北部并遍布欧洲。利用新颖的相控阵设计，LOFAR 覆盖了 largely unexplored 的 10-240 MHz 低频范围，并提供了一系列独特的观测能力。从位于荷兰东北部 Exloo 村附近的核心站向外延伸，共有 40 个 LOFAR 台站即将完工。另外五个台站已部署在德国，法国、瑞典和英国各建有一个台站。数字波束成形技术使 LOFAR 系统具有敏捷性，允许快速重新指向望远镜以及进行多次同时观测的潜力。凭借其密集的核心阵列和长干涉基线，LOFAR 在低频射电频段实现了无与伦比的灵敏度和角分辨率。LOFAR 设施由国际 LOFAR 望远镜 (ILT) 基金会联合运营，作为一个向全球天文界开放的天文台。LOFAR 是首批具备自动化处理流水线的射电天文台之一，可向其用户社区提供完全校准的科学产品。LOFAR 的新能力、技术和操作模式使其成为平方千米阵列 (SKA) 的重要探路者。我们概述了 LOFAR 仪器、其主要硬件和软件组件，以及驱动其设计的核心科学目标。此外，我们还展示了该新射电天文台调试阶段的一系列新结果。
引用
@article{arxiv.1305.3550,
title = {LOFAR: The LOw-Frequency ARray},
author = {M. P. van Haarlem and M. W. Wise and A. W. Gunst and G. Heald and J. P. McKean and J. W. T. Hessels and A. G. de Bruyn and R. Nijboer and J. Swinbank and R. Fallows and M. Brentjens and A. Nelles and R. Beck and H. Falcke and R. Fender and J. Hörandel and L. V. E. Koopmans and G. Mann and G. Miley and H. Röttgering and B. W. Stappers and R. A. M. J. Wijers and S. Zaroubi and M. van den Akker and A. Alexov and J. Anderson and K. Anderson and A. van Ardenne and M. Arts and A. Asgekar and I. M. Avruch and F. Batejat and L. Bähren and M. E. Bell and M. R. Bell and I. van Bemmel and P. Bennema and M. J. Bentum and G. Bernardi and P. Best and L. Bîrzan and A. Bonafede and A. -J. Boonstra and R. Braun and J. Bregman and F. Breitling and R. H. van de Brink and J. Broderick and P. C. Broekema and W. N. Brouw and M. Brüggen and H. R. Butcher and W. van Cappellen and B. Ciardi and T. Coenen and J. Conway and A. Coolen and A. Corstanje and S. Damstra and O. Davies and A. T. Deller and R. -J. Dettmar and G. van Diepen and K. Dijkstra and P. Donker and A. Doorduin and J. Dromer and M. Drost and A. van Duin and J. Eislöffel and J. van Enst and C. Ferrari and W. Frieswijk and H. Gankema and M. A. Garrett and F. de Gasperin and M. Gerbers and E. de Geus and J. -M. Grießmeier and T. Grit and P. Gruppen and J. P. Hamaker and T. Hassall and M. Hoeft and H. Holties and A. Horneffer and A. van der Horst and A. van Houwelingen and A. Huijgen and M. Iacobelli and H. Intema and N. Jackson and V. Jelic and A. de Jong and E. Juette and D. Kant and A. Karastergiou and A. Koers and H. Kollen and V. I. Kondratiev and E. Kooistra and Y. Koopman and A. Koster and M. Kuniyoshi and M. Kramer and G. Kuper and P. Lambropoulos and C. Law and J. van Leeuwen and J. Lemaitre and M. Loose and P. Maat and G. Macario and S. Markoff and J. Masters and D. McKay-Bukowski and H. Meijering and H. Meulman and M. Mevius and E. Middelberg and R. Millenaar and J. C. A. Miller-Jones and R. N. Mohan and J. D. Mol and J. Morawietz and R. Morganti and D. D. Mulcahy and E. Mulder and H. Munk and L. Nieuwenhuis and R. van Nieuwpoort and J. E. Noordam and M. Norden and A. Noutsos and A. R. Offringa and H. Olofsson and A. Omar and E. Orrú and R. Overeem and H. Paas and M. Pandey-Pommier and V. N. Pandey and R. Pizzo and A. Polatidis and D. Rafferty and S. Rawlings and W. Reich and J. -P. de Reijer and J. Reitsma and A. Renting and P. Riemers and E. Rol and J. W. Romein and J. Roosjen and M. Ruiter and A. Scaife and K. van der Schaaf and B. Scheers and P. Schellart and A. Schoenmakers and G. Schoonderbeek and M. Serylak and A. Shulevski and J. Sluman and O. Smirnov and C. Sobey and H. Spreeuw and M. Steinmetz and C. G. M. Sterks and H. -J. Stiepel and K. Stuurwold and M. Tagger and Y. Tang and C. Tasse and I. Thomas and S. Thoudam and M. C. Toribio and B. van der Tol and O. Usov and M. van Veelen and A. -J. van der Veen and S. ter Veen and J. P. W. Verbiest and R. Vermeulen and N. Vermaas and C. Vocks and C. Vogt and M. de Vos and E. van der Wal and R. van Weeren and H. Weggemans and P. Weltevrede and S. White and S. J. Wijnholds and T. Wilhelmsson and O. Wucknitz and S. Yatawatta and P. Zarka and A. Zensus and J. van Zwieten},
journal= {arXiv preprint arXiv:1305.3550},
year = {2015}
}
备注
56 pages, 34 figures, accepted for publication by A&A