Announcing the 2025 KIAA Forum and Workshop on CSST Early Science of Galaxies and Active Galactic Nuclei

By 刘树岩 on Sat, 2025-09-27 08:59

To promote the successful launch of the early science programs of the China Space Station Telescope (CSST), Peking University will host the “2025 KIAA Forum and CSST Early Galaxy Science Workshop” on October 25–26, 2025. The CSST is China’s first optical space telescope and one of the most important astronomical projects of the coming decade. As its scientific operations approach, it is urgent to build a nationwide consensus, propose key scientific goals and observation strategies for the initial survey stage, and fully leverage the advantages of CSST.

Conference Objectives

This workshop will build upon existing CSST early science proposals and invite colleagues from across the astronomical community to discuss early science topics on galaxies and active galactic nuclei (AGN). The meeting aims to define the key survey fields and scientific directions, establish working groups, and foster collaborations to coordinate research tasks. Emphasis will also be placed on cross-disciplinary connections with Galactic and cosmological sciences, thereby advancing the early scientific output of CSST.

Suggested Scientific Goals

We have compiled a series of early extragalactic science proposals that cover nearly all major areas of extragalactic astronomy. The preliminary focus includes:

● Four major CSST target fields

○ CSST Deep and Ultra-Deep Fields: candidate regions include COSMOS and the North Ecliptic Pole.

○ Nearby Galaxy Clusters: such as Fornax, Coma, and Virgo.

○ Nearby Galaxies: in collaboration with the Milky Way science team, e.g., M31 and M33.

○ Strongly Lensed Galaxy Clusters: in collaboration with cosmology teams, e.g., Abell 2744.

● Priority coverage regions for the main CSST survey.

● Other scientific goals: including early explorations with CSST’s auxiliary science instruments.

Discussion Format

● The meeting will be organized into several themes, roughly aligned with the scientific goals: CSST 10 deg² ultra-deep field, North Ecliptic Pole deep field, nearby clusters, nearby galaxies, strongly lensed clusters, and other science objectives.

● For each theme, proposal representatives will give short presentations (≈10 minutes).

● After the presentations, discussions will focus on forming working groups and defining collaboration plans to ensure effective communication and concrete outcomes.

Schedule

● October 24, 2025: Registration

● October 25–26, 2025: Workshop (ending around 4:00 pm on October 26)

Registration

Please fill out the following questionnaire to facilitate discussions and organizational matters.

Deadline: 12:00 noon, October 13, 2025

https://www.wjx.top/vm/rrUZLYq.aspx

Organizer

Kavli Institute for Astronomy and Astrophysics (KIAA), Peking University

SOC

Jinyi Shangguan, Yingjie Peng, Jing Wang, Hu Zhan, Xu Kong, Zhenya Zheng, Zhaoyu Li

LOC

Linhua Jiang, Min Sun, Fangjing Ma, Fangzhou Ren

2025 KIAA Forum

暨CSST早期科学星系和活动星系核研讨会

为推动中国空间站巡天空间望远镜（CSST）早期科学的顺利开展，北京大学将于2025年10月25–26日举办“2025 KIAA Forum 暨CSST早期星系科学研讨会”。CSST是我国首个光学空间望远镜，也是未来十年最重要的天文项目之一。随着CSST科学运行的临近，我们亟需在全国范围内凝聚共识，提出巡天初始阶段的重点科学目标和观测方案，充分发挥CSST的优势。

会议目标

本次会议将基于已有的CSST早期科学提案，邀请天文界同行共同探讨CSST巡天在星系与活动星系核方面的早期科学课题。会议旨在明确主巡天的科学目标场和研究方向，建立相应的工作组，并通过推动合作落实各成员的研究任务，同时强调与银河系及宇宙学领域的交叉合作，从而促进CSST早期科学成果的产出。

科学目标建议

我们已整理了一系列河外方向的早期科学提案，几乎涵盖了河外天文学的主要研究方向。初步讨论的重点包括：

● CSST四类主要目标场：

○ CSST深场和极深场：候选区域包括 COSMOS和北黄极等。

○ 近邻星系团：如 Fornax、Coma、Virgo 等。

○ 近邻星系：需与银河系科学团队合作，如 M31 与 M33。

○ 强引力透镜星系团：需与宇宙学团队合作，如 Abell 2744。

● CSST主巡天优先覆盖区域。

● 其他科学目标：包括利用CSST其他科学仪器开展的早期科学探索。

讨论形式

● 会议将按照科学目标大致划分为数个主题，包括CSST十平方度极深场、北黄极深场、近邻星系团、近邻星系、强引力透镜星系团、其他科学目标，等。

● 针对每个主题下，提案代表进行简短报告（约10分钟）。

● 汇报结束后，将集中讨论工作组的分工与合作方案，以确保充分交流和具体落实。

会议时间

2025年10月24日报到；25–26日会议，预计26日下午4点左右结束。

报名方式

请填写以下问卷内容，以便组织讨论和通知各项参会事宜。（截止时间2025年10月13日中午12:00。）