3 papers
astro-ph.GA2025
Warped Disk Galaxies: Statistical Properties from DESI Legacy Imaging Surveys DR8
Yiheng Wang, Han Qu, Jiafeng Lu +3
Warped structures are often observed in disk galaxies, yet their physical origin is still under investigation. We present a systematic study of warped edge-on disk galaxies based o…
astro-ph.GA2025
Non-Parametric Attenuation Curves in Local Star-Forming Galaxies: Geometry Effect, Dust Evolution, and ISS
Jiafeng Lu, Xi Kang, Shiyin Shen +2
We introduce a non-parametric approach, the Stellar Population Synthesis with Equivalent Widths (SEW) method, to reconstruct spectrally-resolved attenuation curves for 169,568 star…
astro-ph.GA2025
SEW: A full-spectrum linear fitting with stellar population synthesis method Based on "Equivalent Widths spectrum"
Jiafeng Lu, Xi Kang, Shiyin Shen
We present a full-spectrum linear fitting method, SEW, for stellar population synthesis based on equivalent widths (EWs) to extract galaxy properties from observed spectra. This ap…