IAU Symposium No.398/MODEST-25

“Compact Starsand Binaries in Dense Stellar Systems”

June 16-20, 2025

Seoul NationalUniversity

Seoul, Korea

https://gravity.snu.ac.kr/iaus398

Contact:loc-iaus398@googlegroups.com

FirstAnnouncement

Dearcolleagues,

 We are pleased to announce the International Astronomical Union Symposium398 “Compact Objects and Binaries in Dense Stellar Systems” which will takeplace June 16-20, 2025, in Seoul National University, Seoul, Korea. This meeting will also be held as MODEST-25, annualworkshop series for Modeling and Observing Dense Stellar Systems.

 

Thissymposium is intended to discuss the astrophysical origin of gravitationalwaves and to establish connections between theoretical and observational dataconcerning dynamics, populations, binaries, multiples, compact objects(including binaries containing them) in dense star clusters. Star clustersserve as dynamical factories for all these intriguing objects, and these topicsare inherently interconnected. For instance, cluster dynamics and the evolutionof single and binary stars are closely intertwined, leading to differentscenarios compared to those in the galactic field. We believe that the year2025 is an appropriate time to delve into the topic of star clusters and theroles of compact objects. This timing aligns with the release of significantresults from the fourth observing run of LIGO/Virgo/KAGRA, which should providecrucial new constraints on the formation of gravitational wave sources.Additionally, numerous new discoveries of globular cluster pulsars are expectedfrom large radio facilities such as MeerKAT, ASKving DeAP, FAST, and others.New computer codes for dynamical simulations of dense star clusters are alsoemerging, and this symposium offers an excellent opportunity to discuss thelatest results based on these codes. 

 Abstract Submissionand Registration Information:

Abstractsubmission is now open and will close on April15 for oral presentations and May 15 for poster presentations. Pleasesubmit your abstracts via the registration page.

Registration Fees:

• Early Registration (by April 30)

400,000 KRW(250,000 KRW for students)

• Regular Registration (after May 1)

480,000 KRW(300,000 KRW for students)

Please note:1 USD is approximately 1,500 KRW.

Proceedings:

The proceedings of the meeting will be published in the IAUProceedings Series by Cambridge University Press.

 

IAU Travel Grant:

Travel funds for those in need of support are availablefrom the IAU. Deadline for IAU Travel Grant Application is February 28. You canfind the form and more regarding the application process here.

Important Dates:

• Deadline for IAU Travel Grant, February 28, 2025
   Abstract deadline for Oral Presentations: April 15, 2025 
• Early Registration deadline: April 30, 2025
• Abstract deadline for poster presentations: May 15, 2025
• Late Registration Deadline: May 31, 2025

Topics:

• Black holes and pulsars in dense clusters
• Galactic nuclei, dynamics and evolution
• Galactic and extragalactic Star Clusters
• Formation of black hole binaries in star clusters
• Simulations of realistic cluster dynamics with various codes
• Multi-messenger astronomy

 Confirmed InvitedSpeakers:

Holger Baumgardt (Univ. of Queensland)

Paolo Bianchini (Univ. of Strasbourg)

Sourav Chatterjee (Tata Inst. of Fundamental Research)

Michiko Fuji (Univ. of Tokyo)

Mirek Giersz (Nicolas Copernicus Astronomical Center)

Myungshin Im (Seoul National Univ.)

Natalia Lahen (Max-Planck Institute for Astrophysics)

Myung Gyoon Lee (Seoul National Univ.)

Smadar Naoz (UCLA)

Antti Rantala (Max-Planck Institute for Astrophysics)

Carl Rodriguez (Univ. of North Carolina)

Bekdaulet Shukirgaliyev (Heriot-Watt Univ.)

Anna Lisa Varri (Univ. of Edinburgh)

Albert Vecchio (Univ. of Birgmingham)

Claire Ye (Univ. of Toronto)

Zhen Yuan (Nanjing Univ.)

Han Zhanwen (Yunnan Observatory)

 ScientificOrganizing Committee:

Hyung MokLee (Seoul National Univ., Co-Chair)

Rainer Spurzem (Univ. of Heidelberg/NAOC, Co-Chair)

Sourav Chaterjee (Tata Institute for Fundamental Research)
Michiko Fujii (U. Tokyo)
 Di Li (Tsinghua Univ.)

Antiono Milone (Padova Univ..)

Frederic Rasio (Northwestern Univ.)

Ann Lisa Varri (Univ. of Edinburgh)

Local OrganizingCommittee (loc-iaus398@googlegroups.com)

Chunglee Kim (Ewha Womans Univ.) Chair

Jongsuk Hong (Korea Astronomy and Space Science Institute)

Elahe Khalouei (Seoul National Univ.)

Sungsoo S. Kim (Kyunghee Univ.)

Joohee Lee (Seoul National Univ.) Secretary