2026 天文年會 (ASROC Annual Meeting)

Session

Plenary talk

May 16, 2026, 9:00 AM

International Conference Hall, College of Hakka Studies, NYCU 國立陽明交通大學客家文化學院國際會議廳

Conveners

Plenary talk: Investigations for Historical Archival Records and Reconstructions of Centennial Solar Activity

• Hao-Yuan Duan

Plenary talk: Origin of the first Solar System solids in out-of-equilibrium condensation processes

• Yueh-Ning Lee (National Taiwan Normal University)

164. Investigations for Historical Archival Records and Reconstructions of Centennial Solar Activity

Prof. Hisashi Hayakawa (Nagoya University)

5/16/26, 9:00 AM

Oral

The solar activity shows not only regular Schwabe cycles every ≈ 11 years but also some long-term variations and secular trends. Among them, we have some extreme cases such as the Maunder Minimum. Such long-term modulations are challenging to capture or analyse, as the space-borne measurements and most of the ground-based observations cover only decades. The scientific community can resolve...

165. Origin of the first Solar System solids in out-of-equilibrium condensation processes

Prof. Sebastien Charnoz (Université de Paris Cité)

5/17/26, 9:00 AM

Oral

The formation of the first solids in protoplanetary disks sets the chemical foundations of planetary systems, yet their origin remains poorly understood. Classical models assume equilibrium condensation in a cooling gas, but increasing observational and cosmochemical evidence suggests that this assumption is not valid in dynamically evolving disks. Infrared observations (Spitzer, JWST) reveal...