May 15 – 17, 2026
College of Hakka Studies at NYCU, Zhubei, Hsinchu County 國立陽明交通大學客家學院(竹北六家校區)
Asia/Taipei timezone

Statistical Modeling of Stellar Halo Density Profiles without N-body Simulations

Not scheduled
15m
College of Hakka Studies at NYCU, Zhubei, Hsinchu County 國立陽明交通大學客家學院(竹北六家校區)

College of Hakka Studies at NYCU, Zhubei, Hsinchu County 國立陽明交通大學客家學院(竹北六家校區)

No. 1, Sec. 1, Liujia 5th Rd., Zhubei City, Hsinchu County 302, Taiwan 30272新竹縣竹北市六家五路一段1號
Board: 44

Speaker

Chung-Wen Wang (National Tsing Hua University)

Description

We present a new framework for constructing stellar halo density profiles from galaxy merger histories without relying on particle-based simulations. An approximate but efficient approach allows us to capture the essential physics of tidal stripping and orbit evolution for large ensembles of stellar halo models, making it well suited for statistical studies of halo structure and assembly. We have developed updated prescriptions for assigning stellar mass to progenitor halos and the growth of a massive stellar disk in the host. In this poster, we demonstrate that the resulting stellar halo density profiles are consistent with those found in previous theoretical and observational studies. We describe how our framework can be used to investigate the statistical properties of stellar haloes and their connection to galaxy assembly histories, ultimately for comparison to upcoming wide-field deep imaging surveys.

Participate the oral/poster presentation award competition Yes

Author

Chung-Wen Wang (National Tsing Hua University)

Co-author

Andrew Cooper (NTHU Institute of Astronomy)

Presentation materials

There are no materials yet.