5 papers
Surprising increase of electron temperature in metal-rich star-forming region
Ziming Peng, Renbin Yan, Zesen Lin +3
The electron temperature is a crucial parameter for the determination of the gas-phase metallicity of galaxies. Low electron temperature is expected for metal-rich galaxies, theore…
Method on Using Shadow Altitude to Remove Geocoronal H
Wai-Kiu Ricky Wong, Renbin Yan, Zesen Lin
Spectroscopic surveys allow spatially resolved spectroscopy of galaxies to study their interstellar medium (ISM). However, observations of Galactic H emission are contaminated b…
A robust morphological classification method for galaxies using dual-encoding contrastive learning and multi-clustering voting on JWST/NIRCam images
Xiaolei Yin, Guanwen Fang, Shiying Lu +3
The two-step galaxy morphology classification framework {\tt USmorph} successfully combines unsupervised machine learning (UML) with supervised machine learning (SML) methods. To e…
SDSS-IV MaNGA: Data-Model Discrepancy in Temperature-sensitive Line Ratios for Star-forming Galaxies
Ziming Peng, Renbin Yan, Xihan Ji +2
Gas-phase metallicity is a fundamental parameter that helps constrain the star-forming history and chemical evolution of a galaxy. Measuring electron temperature through auroral-to…
Nebular Dust Attenuation with the Balmer and Paschen Lines based on the MaNGA Survey
Zesen Lin, Renbin Yan
Dust attenuations observed by stars and ionized gas are not necessarily the same. The lack of observational constraints on the nebular dust attenuation curve leaves a large uncerta…