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Browsing by Author "Shen, Shiyin"
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From Images to Features: Unbiased Morphology Classification via Variational Auto-Encoders and Domain Adaptation
Xu, Quanfeng; Shen, Shiyin; Souza, Rafael S. de; Chen, Mi; Ye, Renhao; She, Yumei; Chen, Zhu; Ishida, Emille E. O.; Krone-Martins, Alberto; Durgesh, Rupesh (2023-10-17)We present a novel approach for the dimensionality reduction of galaxy images by leveraging a combination of variational auto-encoders (VAE) and domain adaptation (DA). We demonstrate the effectiveness of this approach ... -
Galmoss: A package for GPU-accelerated galaxy profile fitting
Chen, Mi; Souza, Rafael S. de; Xu, Quanfeng; Shen, Shiyin; Chies-Santos, Ana L.; Ye, Renhao; Canossa-Gosteinski, Marco A.; Cong, Yanping (2024-04-22)We introduce galmoss, a python-based, torch-powered tool for two-dimensional fitting of galaxy profiles. By seamlessly enabling GPU parallelization, galmoss meets the high computational demands of large-scale galaxy surveys, ... -
The hot gas distribution, X-ray luminosity and baryon budget in the L-Galaxies semi-analytic model of galaxy formation
Zhong, Wenxin; Fu, Jian; Sharma, Prateek; Shen, Shiyin; Yates, Robert M. (2023-03-31)Hot ionized gas is important in the baryon cycle of galaxies and contributes the majority of their ``missing baryons''. Until now, most semi-analytic models of galaxy formation have paid little attention to hot gaseous ...