Conferences & Workshops

Galaxy-IGM workshop 2021

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Science and Motivation

The Galaxy-IGM Workshop will be held again this year.

For the past 10 years, the Galaxy-IGM Workshop has been held to share and discuss research results from galaxy observation / theory, IGM observation / theory, and AGN observation / theory, and to develop new collaborative research projects. This workshop has fostered many a student and postdoc to continue to become first-class researchers and teachers.

As in the previous year, due to COVID-19, the workshop will be held online. The program includes, in addition to invited and contributed talks, group work by graduate students and postdocs, a format that was successfully employed in the past two years. We look forward to your participation.

This workshop is supported by the Kenkyukai-kaisai-shien Program of the Center for Computational Science, University of Tsukuba.

Review Talks

  • Hanae Inami (Hiroshima University) : "Galaxy formation (observations)"
  • Shingo Hirano (University of Tokyo) : "Galaxy formation (theory)"
  • Hideki Umehata (Riken) : "IGM (observations)"
  • Keitaro Takahashi (Kumamoto University) : "IGM (theory)"
  • Kohei Inayoshi (Peking University) : "AGN, SMBH (theory)"
  • Masafusa Onoue (Max Planck Institute for Astronomy in Heidelberg) : "AGN, SMBH (observations)"

Important Dates

  1. Fri, Jul 2, 2021 : Deadline for registration
  2. Mon, Aug 16, 2021 : First day of Workshop
  3. Fri, Aug 20, 2021 : Last day of Workshop

Registration

Registration has now closed. The deadline for applications was Friday, July 2, 2021.
The groups you wish to participate in will be decided by the organizers. We will make every effort to accommodate applicants' preferences, but will also need balance the number of young and senior participants and areas of expertise in each group. We thank you for your understanding.

Program

  • Review: 45 min + 15 min
  • Contributed talk: 10 min + 10 min
  • Group presentation: 10 min + 10 min

Please find the most recent program as a pdf here.

Information on the group discussions and tasks.

1st Day ( Mon, Aug 16 )

9:20 ~ 11:40 Morning Session Chair: Takuya Hashimoto
9:20 ~ 9:30 Welcome Akio Inoue
9:30 ~ 10:30 Galaxy formation observations review Hanae Inami
10:30 ~ 10:40 Break
10:40 ~ 11:00 Rise of Normal, Dust-Obscured Galaxies During Cosmic Reionization  Yoshinobu Fudamoto
11:00 ~ 11:20 銀河南極ソースに対するALMA観測の結果を用いたガスの物理状態の解析  Masato Hagimoto
11:20 ~ 11:40 大質量銀河団SPT-CL J0615−5746に属するCO分子輝線銀河が示す環境効果による星形成活動の抑制  Satoya Nakano
11:40 ~ 12:40 Lunch
12:40 ~ 14:50 Afternoon Session 1 Chair: Yoshinobu Fudamoto
12:40 ~ 13:40 Galaxy formation theory review  Shingo Hirano
13:40 ~ 13:50 Break
13:50 ~ 14:10 多相アウトフローを考慮した超新星フィードバックモデルの構築  Yuri Oku
14:10 ~ 14:30 銀河に降着する Cold Stream とその⻆運動量  Ryo Teraguchi
14:30 ~ 14:50 原始銀河団中銀河のLya・Ha放射とその星形成史  Keita Fukushima
14:50 ~ 15:10 Coffee break
15:10 ~ 17:00 Afternoon Session 2 Chair: Hidenobu Yajima
15:10 ~ 15:30 形成初期銀河における高い鉄酸素比が示唆する大質量星の兆候  Yuki Isobe
15:30 ~ 15:50 すばるによる極金属欠乏銀河観測：He 量から探る初期宇宙の熱史と新素子  Akinori Matsumoto
15:50 ~ 16:10 Observations for Outflows of Very Low-Mass Galaxies with M*~10e4-10e6  Yi Xu
16:10 ~ 17:00 Discussion

2nd Day ( Tue, Aug 17 )

9:30 ~ 11:40 Morning Session Chair: Daichi Kashino
9:30 ~ 10:30 IGM observations review  Hideki Umehata
10:30 ~ 10:40 Break
10:40 ~ 11:00 Probing Feedback via IGM tomography and Ly-α forest with Subaru PFS, TMT/ELT, and JWST  Kentaro Nagamine
11:00 ~ 11:20 CGM properties of various galaxy populations in the SSA22 field  Ken Mawatari
11:20 ~ 11:40 Cosmological 3D HI gas tomography map in the Fall field with SDSS QSOs at z = 2.0~3.0: HI IGM-QSO connection  Dongsheng Sun
11:40 ~ 12:40 Lunch
12:40 ~ 14:50 Afternoon Session 1 Chair: Yuma Sugahara
12:40 ~ 13:40 IGM theory review  Keitaro Takahashi
13:40 ~ 13:50 Break
13:50 ~ 14:10 The diversity of IGM-galaxy connection at redshift z=2-3  Rieko Momose
14:10 ~ 14:30 ハロー近傍のダークマターの密度場を用いたHIパワースペクトルの再構築  Rika Ando
14:30 ~ 14:50 The effect of heat conduction and dark matter potential on the survival of cold streams feeding galaxies  Nicolas Ledos
14:50 ~ 15:10 Coffee break
15:10 ~ 17:00 Afternoon Session 2 Chair: Kenji Hasegawa
15:10 ~ 15:30 電離スペクトルから迫る形成初期銀河の強い HeII 輝線の起源  Hiroya Umeda
15:30 ~ 15:50 Lya Intensity Mapping for Extended Lya Emission around the LAEs at z~2-7  Shotaro Kikuchihara
15:50 ~ 17:00 Discussion

3rd Day ( Wed, Aug 18 )

9:30 ~ 11:40 Morning Session Chair: TBD
09:30 ~ 09:50 Recovering the growth history of a supermassive blackhole using photometric IGM tomography  Koki Kakiichi
09:50 ~ 10:10 ダークマター欠乏銀河形成条件の解析  Koki Otaki
10:10 ~ 10:30 HSC で挑む宇宙再電離の空間的非一様性のマッピング  Takehiro Yoshioka
10:30 ~ 10:40 Break
10:40 ~ 11:40 AGN theory review  Kohei Inayoshi
11:40 ~ 12:40 Lunch
12:40 ~ 14:50 Afternoon Session 1 Chair: Kimihiko Nakajima
12:40 ~ 13:00 MIRACLES  Yuichi Matsuda
13:00 ~ 13:20 LAEs at z=2.0-3.5 Probed by HETDEX Survey  Yechi Zhang
13:20 ~ 13:40 電離平衡モデルで見たFIR輝線とBPT図の関係  Yuma Sugahara
13:40 ~ 14:00 Coffee break
14:00 ~ 15:00 AGN observations review  Masafusa Onoue
15:00 ~ 15:10 Break
15:10 ~ 17:00 Afternoon Session 2 Chair: Yoshiaki Ono
15:10 ~ 15:30 21cm線強度マップの直接画像解析による暗黒物質探査  Koya Murakami
15:30 ~ 15:50 銀河進化とCold flowの関係  Kosei Matsumoto
15:50 ~ 16:10 A systematic search for galaxy protocluster cores at the transition epoch of star formation activity  Makoto Ando
16:10 ~ 17:00 Discussion

4th Day ( Thu, Aug 19 )

9:30 ~ 17:00 Group Work
Galaxy formation observations  Hanae Inami
Galaxy formation theory  Shingo Hirano
IGM observations  Hideki Umehata
IGM theory  Keitaro Takahashi
AGN observations  Masafusa Onoue
AGN theory  Kohei Inayoshi

5th Day ( Fri, Aug 20 )

9:30 ~ 12:00 Group Work
Continuation of day 4
13:00 ~ 16:00 Group presentations Chair: Akio Inoue
13:00 ~ 15:00 Presentations 10 min talk +10 min discussions × 6 groups
15:00 ~ 15:30 Break
15:30 ~ 16:00 Awards and commentary

Organizers

  • Akio Inoue (Waseda University)
  • Yuma Sugahara (Waseda University)
  • Yoshinobu Fudamoto (Waseda University)
  • Masami Ouchi (University of Tokyo / NAOJ)
  • Yoshiaki Ono (University of Tokyo)
  • Kenji Hasegawa (Nagoya University)
  • Masayuki Umemura (University of Tsukuba)
  • Hidenobu Yajima (University of Tsukuba)
  • Takuya Hashimoto (University of Tsukuba)
  • Alexander Wagner (University of Tsukuba)