4 papers
Comparison of Bar Formation Mechanisms. IIIA. The role of classical bulges in spontaneous bar formation
Yirui Zheng, Juntai Shen, Bin-Hui Chen
We run a suite of -body simulations to investigate how classical bulges affect bar formation and properties under the internal formation mechanism. We incorporate bulges of vary…
Robustness Analysis of USmorph: I. Generalization Efficiency of Unsupervised Strategies and Supervised Learning in Galaxy Morphological Classification
Shiwei Zhu, Guanwen Fang, Yao Dai +5
We conduct a systematic robustness analysis of the hybrid machine learning framework \texttt{USmorph}, which integrates unsupervised and supervised learning for galaxy morphologica…
Comparison of Bar Formation Mechanisms. II. Does a Tidally Induced Bar Grow Faster Than an Internally Developed Bar?
Yirui Zheng, Juntai Shen, Xufen Wu +1
Bar structures can form internally due to the instability of their host galaxies or externally due to perturbations from other galaxies. We systematically quantify the growth times…
Comparison of bar formation mechanisms I: does a tidally-induced bar rotate slower than an internally-induced bar?
Yirui Zheng, Juntai Shen
Galactic bars can form via the internal bar instability or external tidal perturbations by other galaxies. We systematically compare the properties of bars formed through the two m…