GRAVITY：用于窄角天体测量与干涉成像的VLTI四光束组合器
天体物理仪器与方法
2015-03-26 v1
摘要
GRAVITY是第二代甚大望远镜干涉仪仪器，用于近红外（NIR）波段的精密窄角天体测量与干涉成像。它将提供约10微角秒的精密天体测量精度，以及几毫角秒分辨率级的成像能力，从而彻底改变对天体的动力学测量。GRAVITY目前正处于在加兴（Garching）的MPE进行集成与测试的最后阶段，将于2015年交付至VLT干涉仪（VLTI）。我们在此介绍该仪器，特别关注采用光纤的组件：集成光学光束组合器、偏振旋转器、光纤差分延迟线以及计量系统。
引用
@article{arxiv.1503.07303,
title = {GRAVITY: the VLTI 4-beam combiner for narrow-angle astrometry and interferometric imaging},
author = {N. Blind and F. Eisenhauer and S. Gillessen and Y. Kok and M. Lippa and G. Perrin and R. Dembet and P. Fedou and S. Lacour and K. Perraut and L. Jocou and L. Burtscher and O. Hans and M. Haug and F. Haussmann and S. Huber and A. Janssen and S. Kellner and T. Ott and O. Pfuhl and E. Sturm and J. Weber and E. Wieprecht and A. Amorim and W. Brandner and C. Straubmeier},
journal= {arXiv preprint arXiv:1503.07303},
year = {2015}
}
备注
8 pages, 3 figures. Proceeding of the conference "Fiber optics in astronomy IV". The follwoing authors made significant contribution regarding the work on fibers reported in this paper (ordered by institute and alphabetical order): IPAG: L. Jocou, K. Perraut; LESIA: R. Dembet, P. Fedou, S. Lacour, G. Perrin; MPE: N. Blind, F. Eisenhauer, S. Gillessen,, Y. Kok, M. Lippa