CSST Galaxy & AGN Science Discussion - CSSTsci/GalaxyAGN_science_discussion GitHub Wiki

Welcome to the Galaxy & AGN science discussion wiki!

Time of the discussion

It happens every Thursday 10:00 am, starting from Oct. 10, 2024 via Hybrid mode (in-person and online). Below is the online meeting link: https://us02web.zoom.us/j/87944396019?pwd=WXpuenBkK2ttSzZGbTg4RHJjd1RMZz09

The screen recordings can be found here: https://disk.pku.edu.cn/link/AA65DEB7DF45CD4AEF9C8DC629D7588301

Form of the discussion

It is organized in Series. Roughly one series per year, 5-7 topics per series, and 3-8 presentations per topic. The topics are decided at least one month before the Series starts. We are currently in Series V; you can find a record of past series from the sidebar. Every discussion has two sections (We encourage every student and postdoc to give at least one topic review or sharing during one series.):

  1. Topic Review [~30 mins review + discussion] (no more than 1 hr)
  2. Free Talk [~5 mins talk + discussion] (no more than 15 mins)

Topic Review

The major theme for this new semester is to systematically discuss multiple issues on galaxies and AGNs, prioritizing topics that are of immediate relevance to your ongoing projects. The discussion topics are (1) AGN population at high-z in JWST-era , (2) BH-host scaling relations and their evolution, (3) Formation and evolution of the Hubble Sequence , (4) Spectra and SED modeling, (5) The multiphase nature and connection of ISM/CGM/IGM, and (6) Galaxies and their dark matter halos , as suggested by the SOJ-S members. Due to the limited number of participants, topic 1&2, 3&5 are merged. The time of discussion is preliminarily determined to be every Thursday morning 10:00 - 11:30 (starting from Oct. 10). We will send a notice every Monday and a reminder earlier in the morning before the discussion. Recordings of the discussions will be provided as PKUdisk links later.

Sign-In

  • Please sign in your name together with email address by directly editing this page before 24:00 Sept. 8, 2024. The topics proposed by the SOC-S for this series are :

CALL FOR REVIEWS OF EACH TOPIC:

At the end of each topic, we will need a 30-40 minute summary from a participant who has listened carefully to all the talks on that topic (everyone is welcome to sign up, regardless of whether you are a speaker). The summary will cover the main points of each talk, briefly outline key issues to be solved in this field, and include a discussion. If you are interested in the talks on this topic, please sign up on whis website to give the summary.

  1. Topic 1----AGN population and BH-host scaling relations (Captain: Changhao Chen) (Speakers: Zijian Zhang, Jie Chen, Kohei Inayoshi, Danyang Jiang, Changhao Chen, Jiwei Liao )
    Review of Topic 1: Zijian Zhang
  2. Topic 2----Formation and evolution of the Hubble sequence: stellar and gaseous views (Captain:) (Speakers: Bingcheng Jin, Jinyi Shangguan, Ze-zhong Liang, Xuchen Lin)
    Review of Topic 2: Xuchen Lin
  3. Topic 3----Spectra and SED modeling (Captain: Ruancun Li) (Speakers: Shuqi Fu, Qifeng Huang, Ruancun Li, Huimei Wang, Jinyi Shangguan, Zeyu Gao)
    Review of Topic 3: Jinyi Shangguan
  4. Topic 4----Galaxies and their dark matter halos (Captain: Haonan Zheng) (Speakers: Zixiang Jia, Haiyang Xing, Haonan Zheng, Yu-Chen Wang, Xiaoyue Cao)
    Review of Topic 4: Fangzhou Jiang

Highlighted sub-topics:

  • Topic 1-----AGN population at high-z in JWST-era

    • Observation
    • Theory and simulation:
      • Status of accretion disk simulation in particular relating to the disk wind, ultrafast outflow and the broad-line region
      • How to understand multiphase and multiscale outflows in observations and simulations?

  • Topic 2----BH-host scaling relations and their evolution (merged with Topic 1)

  • Topic 3----Formation and evolution of the Hubble Sequence

    • Galaxy structure evolution linked to star formation and galaxy quenching in particular with new insights from JWST for high-z galaxies
    • Galaxy ISM mass and spatial distribution evolution
    • Galaxy kinematics and dynamics

  • Topic 4----Spectra and SED modeling

    • Multi-wavelength scientific synergy with new HI data
    • Slitless spectroscopy
    • The full complexity of integrated and spatially resolved SED fitting

  • Topic 5----The multiphase nature and connection of ISM/CGM/IGM (merged with Topic 3)

  • Topic 6----Galaxies and their dark matter halos

    • Small-scale structures (including Milky Way and Local Group)
    • Lensing for substructure detection and for measuring galaxy environments
    • Galaxy-dark-matter mutual interactions

Free Talk

  • Interesting ideas/questions/tools/websites sharing
  • The sharing does not have to be relevant to the topic review, but generally about the science of AGN and galaxies.
  • Attendees can volunteer to lead a free discussion about CSST and the major science topics.

Key Points

  1. We encourage the junior students to ask whatever questions. Don't worry about the naive questions.

  2. Each topic is presented by a team with a captain selected by team members. The captain of each team needs to prepare their outline, titles, and abstracts one week in advance and send them to the SOC-J members. It is also advised that each presenter sends slides to SOC-S >3 days in advance for suggestions. The captain is expected to collaborate closely with the SOC-J (experienced organizers), and discuss actively with the SOC-S in advance, to ensure a fruitful session.

  3. Each topic should be briefly reviewed by the caption or other team members before the first talk of the next topic.

  4. We will emphasize the quality of the outline of each session to be given by the captain at the beginning of the session. This outline should be ~1 page in length (including figures) and needs to be submitted with the abstracts by the captain. So that the SOC-S can better identify important but missing pieces. We expect more latest references in a review. Captains should list some core references with the submitted outlines.

  5. SOC-J should help the group collaborate better and lead more discussions to enhance the logical relationship between each subtopic within a group. When giving a presentation, please follow and clearly show the logical structure.

Suggestions from the SOC-S

Given limited time and energy, we suggest placing higher priority on topics that are of immediate relevance to our (your) ongoing projects, with special emphasis on those that involve more technical aspects. In the end, we want to learn how to do the work, not only to talk about it. We need to master the techniques, understand their limitations, and, if necessary, improve them. Please bear this in mind.

Responsibility

  • SOC-J: organize and host discussions, send emails, screen recording, and edit GitHub.

  • Captain: lead discussions within a group and write the outline.

Key timelines for starting Series V:

Aug. 31, students/postdocs sign for topics

Sept. 28, captain of topic 1 submits outlines.

Oct. 10, Series V officially starts.

Previous Topics:

Series I:

  1. Morphology, Structure and Kinematic
  2. Quasar survey
  3. Measure the mass of AGN host galaxies: methods and uncertainties
  4. Environmental effects on galaxies
  5. Feedback of baryons and black holes
  6. Photometric Redshifts

Series II:

  1. Techniques to measure (1) asymmetry and other non-parametric parameters sensitive to mergers and tidal interactions, (2) morphological types, (3) bars and other non-axisymmetric features, (4) intracluster light, (5) diffuse outer structures, (6) thick disk, (7) galaxy population properties in clusters, (8) nuclear star clusters, including UCDs
  2. Quasar/AGN variability
  3. BPT diagram and other diagnostics to separate AGN from star forming activity
  4. Slitless spectroscopy
  5. Metallicities in gas and stars

Series III:

  1. Latest JWST results
  2. Lyman alpha and lyC from galaxies
  3. Sky Surveys
  4. Simulations with different scales
  5. AGN torus

Series IV:

  1. Euclid and Roman
  2. Rubin (LSST)
  3. DESI
  4. PFS
  5. MOONS

CSST Summary

CSST Summary

Organizers:

SOC-Junior members:

Changhao Chen (PKU, KIAA), Shuqi Fu (PKU, KIAA), Qifeng Huang (PKU, KIAA)

SOC-Senior members:

Lulu Fan (USTC), Luis C. Ho (PKU, KIAA), Song Huang (THU), Linhua Jiang (PKU, KIAA), Yingjie Peng (PKU, KIAA), Yong Shi (NJU), Ran Wang (PKU, KIAA), Jing Wang (PKU, KIAA), Xuebing Wu (PKU, KIAA), and Kohei Inayoshi (PKU, KIAA), Jinyi Shangguan (PKU, KIAA).