4 papers · 1 filter
Age and Mass Signatures in the Multiband Second-order Image Structure of Young Star Clusters in M31
Yuan Liang, Chao-Wei Tsai, Jingwen Wu
The ages and masses of star clusters may leave systematic signatures in the second-order spatial structure of semi-resolved photometric images. To test this hypothesis, we analyze…
Hessian-based photometric substructure as an evolutionary tracer of OB cluster candidates in M31
Yuan Liang, Chao-Wei Tsai, Jingwen Wu
Using \textit{Hubble Space Telescope} images from the PHAT and PHAST surveys, we construct an updated catalogue of 747 OB cluster (OBC) candidates. We introduce a dimensionless str…
A comprehensive catalogue of OB cluster candidates in M31 and their association with giant molecular clouds
Yuan Liang, Guang-Wei Li, Chao-Wei Tsai +1
We present a new catalogue of 578 OB cluster (OBC) candidates in the Andromeda galaxy (M31), identified using a MeanShift-based algorithm on HST's F275W-band imaging from the PHAT…
Optical Extinctions of Inter-Arm Molecular Clouds in M31: A Pilot Study for the Upcoming CSST Observations
Cailing Chen, Zheng Zheng, Chao-Wei Tsai +8
Recent sub-millimeter dust thermal emission observations have unveiled a significant number of inter-arm massive molecular clouds in M31.However,the effectiveness of this technique…