GRAVITY+ 自适应光学：Very Large Telescope Interferometer 的极端自适应光学首次亮相
天体物理仪器与方法
2026-03-11 v2
摘要
GRAVITY+ 通过数个数量级地提升了 Very Large Telescope Interferometer (VLTI) 的灵敏度、sky-coverage 和 contrast。该项目的核心部分是开发 Gravity Plus Adaptive Optics (GPAO)，即为 VLTI 专用的高阶和激光引导星自适应光学(AO)系统。GPAO 由四套最先进的 AO 系统装配在所有 8m 级 Unit Telescopes (UTs) 上，用于 VLTI 仪器的波前校正。它提供可见和红外 Natural Guide Star (NGS) 和 Laser Guide Star (LGS) 两种操作模式。本文介绍了 GPAO 的设计、运行和性能。我们通过 2024 年底期间 NGS 模式的 commissioning 所获取的干涉观测结果展示了 GPAO 带来的改进。这些科学结果包括对一个 redshift 原星系测量的首次光学干涉观测、对亮度 的冷棕色矿星的光谱测量、对 Class I 年轻恒星的首次 GRAVITY 观测，以及光学首次亚微弧次级差分测位。除了整个 GRAVITY+ 项目之外，GPAO 的实施是观察极高角分辨率光学宇宙的真正范式转变。
引用
@article{arxiv.2509.21431,
title = {First Light for the GRAVITY+ Adaptive Optics: Extreme Adaptive Optics for the Very Large Telescope Interferometer},
author = {GRAVITY+ Collaboration and : and F. Allouche and C. Bailet and M. Benisty and A. Berdeu and J. -P. Berger and P. Berio and A. Bigioli and C. Blanchard and O. Boebion and H. Bonnet and G. Bourdarot and P. Bourget and W. Brandner and J. Brulé and P. Burgos and M. Carbillet and C. Correia and B. Courtney Barrer and S. Curaba and R. Davies and D. Defrère and A. Delboulbé and F. Delplancke and R. Dembet and A. Drescher and N. Dubost and A. Eckart and C. Édouard and F. Eisenhauer and L. Esteras Otal and M. Fabricius and H. Feuchtgruber and P. Fédou and G. Finger and N. M. Förster Schreiber and R. Frahm and E. Garcia and P. Garcia and R. Garcia Lopez and R. Genzel and J. P. Gil and S. Gillessen and T. Gomes and F. Gonté and V. Gopinath and C. Gouvret and J. Graf and P. Guajardo and S. Guieu and W. Hackenberg and M. Hartl and X. Haubois and F. Haußmann and T. Henning and P. Hibon and S. Hönig and M. Horrobin and M. Houllé and N. Hubin and I. Ibn Taieb and L. Jochum and L. Jocou and A. Jost and J. Kammerer and L. Karl and A. Kaufer and P. Kern and P. Kervella and J. Kolb and H. Korhonen and L. Kreidberg and P. Krempl and S. Lacour and S. Lagarde and O. Lai and V. Lapeyrère and R. Laugier and V. Leal and J. -B. Le Bouquin and J. Leftley and P. Léna and B. Lopez and D. Lutz and Y. Magnard and F. Mang and A. Marcotto and D. Maurel and A. Mérand and F. Millour and M. Montarges and N. More and N. Morujão and T. Moulin and H. Nowacki and M. Nowak and S. Oberti and T. Ott and L. Pallanca and F. Patru and T. Paumard and K. Perraut and G. Perrin and P. O. Petrucci and R. Petrov and O. Pfuhl and N. Pourré and S. Rabien and C. Rau and M. Riquelme and S. Robbe-Dubois and S. Rochat and M. Salman and J. Sánchez-Bermúdez and J. Schubert and J. Scigliuto and P. Shchekaturov and N. Schuhler and J. Shangguan and T. Shimizu and S. Scheithauer and C. Soenke and F. Soulez and E. Stadler and J. Stadler and C. Straubmeier and E. Sturm and M. Subroweit and C. Sykes and L. J. Tacconi and K. R. W. Tristram and S. Uysal and S. von Fellenberg and F. Widmann and E. Wieprecht and E. Wiezorrek and J. Woillez and S. Yazici and G. Zins},
journal= {arXiv preprint arXiv:2509.21431},
year = {2026}
}
备注
Accepted in A&A