Binary Stars in a New Era on August 24-30, 2025 in Lijiang, China

Binary Stars in a New Era

24 -30 August 2025

First announcement 18 November 2024

Webpage: binarystars2025.casconf.cn

Binary stars lie at the heart of many key astrophysical phenomena. Various explosive cosmic events result from binary stars, as do close double black holes/neutron stars/white dwarfs, type Ia supernovae, X-ray binaries, millisecond pulsars etc. Relying on existing large scientific facilities, classical optical, radio and X-ray observations are discovering increasingly large numbers of such binary stars. A decade ago, the ground-based LIGO/Virgo detected the merging of two stellar-mass binary black holes, opening a new window in gravitational wave astronomy. In the future, with the support of next-generation astronomical instruments, we shall discover many more binary-related celestial objects. Against this backdrop, we convene this conference, inviting all international observers and theoreticians in the field of stellar science to participate in and exchange recent progress related to binary stars and to look forward to future collaboration and development of new directions for research.

Topics:

1. Binary star interactions: from mass transfer to common envelope evolution.

2. Supernovae: from progenitor modelling to explosion simulation.

3. Gravitational wave sources: from double black holes to white dwarfs.

4. Exotic stars: X-ray binaries, binary pulsars, luminous red novae, hot subdwarfs,

cataclysmic variables, symbiotic stars, etc.

5. Binary population synthesis studies on binary objects.

6. Observations from large facilities: LAMOST, FAST, Gaia, TESS, JWST, etc.

Key Dates:

18 November 2024 Registration & Abstract submission opens

15 April 2025 Deadline for submitting the abstracts

15 May 2025 Announcement of the invited/contributed talk speakers

24-30 August 2025 Binary Stars Conference

Place:

Lijiang, China

Host Institute:

Yunnan Observatories, Chinese Academy of Sciences

Scientific Organizing Committee:

Floor Broekgaarden Xuefei Chen Hongwei Ge (Chair)

Zhanwen Han Natalia Ivanova Christopher A. Tout

Local Organizing Committee:

Hailiang Chen Hongwei Ge Yanjun Guo Shi Jia Wenyan Ji (Secretary)

Dengkai Jiang Jiangdan Li Jiao Li Zhenwei Li Zhengwei Liu (Chair)

Xiangcun Meng Bo Wang Jianping Xiong Lifu Zhang

Invited Review Speakers:

Nadejda Blagorodnova University of Barcelona LRNe Observation

Orsola De Marco Macquarie University Post CE Binaries and PNe Observations

Tassos Fragos Université de Genève Binary Population Synthesis using POSYDON

Natalia Ivanova University of Alberta Modelling Light Curves of CEE

Robert Izzard University of Surrey Binary Population Synthesis using Binary_C

Xiangdong Li Nanjing University X-ray binaries

Ilya Mandel Monash University Binary Population Synthesis using COMPAS

Michela Mapelli University of Padova Black Hole Binaries and Gravitational Waves

Philipp Podsiadlowski University of Oxford SNe Theory

Hugues Sana KU Leuven Observation of Massive binary stars

Veronika Schaffenroth TLS - Thuringian State Observatory Observation of Hot subdwarfs

Xiaofeng Wang Tsinghua University SNe Observation