统一日冕与日球的偏振仪（PUNCH）
太阳与恒星天体物理
2026-01-29 v2 天体物理仪器与方法
摘要
统一日冕与日球的偏振仪（PUNCH）任务是NASA小型探索者任务，旨在确定统一日冕和日球的跨尺度过程。PUNCH有两个科学目标：（1）理解日冕结构如何成为环境太阳风；（2）理解瞬态结构（如日冕物质抛射）在年轻太阳风中的动态演化。为实现这些目标，PUNCH使用由四颗小型航天器组成的太阳同步低地球轨道星座，收集K日冕和年轻太阳风的线偏振图像。四颗航天器各携带一个可见光成像器，采用1+3配置：一台单窄视场成像日冕仪在所有方位角捕获外日冕图像，太阳张角从1.5度（6 R⊙）到8度（32 R⊙）；三台独立的宽视场成像日球仪共同捕获整个内太阳系的视图，太阳张角从3度（12 R⊙）到45度（180 R⊙）。PUNCH图像包含线偏振数据，以在不使用立体视觉的情况下推断可见特征的三维结构。仪器在波长通带方面匹配，支持重叠的瞬时视场，并同步运行，作为一个以太阳为中心、90度宽视场的"虚拟仪器"。PUNCH于2025年3月发射，并于2025年6月开始科学运行。PUNCH采用开放数据政策，无专有期，PUNCH科学团队会议向所有人开放。
引用
@article{arxiv.2509.15131,
title = {Polarimeter to Unify the Corona and Heliosphere (PUNCH)},
author = {Craig E. DeForest and Sarah E. Gibson and Ronnie Killough and Nick R. Waltham and Matt N. Beasley and Robin C. Colaninno and Glenn T. Laurent and Daniel B. Seaton and J. Marcus Hughes and Madhulika Guhathakurta and Nicholeen M. Viall and Raphael Attie and Dipankar Banerjee and Luke Barnard and Doug A. Biesecker and Mario M. Bisi and Volker Bothmer and Antonina Brody and Joan Burkepile and Iver H. Cairns and Jennifer L. Campbell and Traci Case and Amir Caspi and David Cheney and Rohit Chhiber and Matthew J. Clapp and Steven R. Cranmer and Jackie A. Davies and Curt A. de Koning and Mihir I. Desai and Heather A. Elliott and Samaiyah Farid and Bea Gallardo-Lacourt and Chris Gilly and Caden Gobat and Mary H. Hanson and Richard A. Harrison and Donald M. Hassler and Chase Henley and Alan M. Henry and Russell A. Howard and Bernard V. Jackson and Samuel Jones and Don Kolinski and Derek A. Lamb and Florine Lehtinen and Chris Lowder and Anna Malanushenko and William H. Matthaeus and David J. McComas and Jacob McGee and Huw Morgan and Divya Oberoi and Dusan Odstrcil and Chris Parmenter and Ritesh Patel and Francesco Pecora and Steve Persyn and Victor J. Pizzo and Simon P. Plunkett and Elena Provornikova and Nour Eddine Raouafi and Jillian A. Redfern and Alexis P. Rouillard and Kelly D. Smith and Keith B. Smith and Zachary S. Talpas and S. James Tappin and Arnaud Thernisien and Barbara J. Thompson and Samuel Van Kooten and Kevin J. Walsh and David F. Webb and William L. Wells and Matthew J. West and Zachary Wiens and Yan Yang},
journal= {arXiv preprint arXiv:2509.15131},
year = {2026}
}
备注
As accepted by Solar Physics journal; substantially similar (but not identical) to the article as it will appear in the journal