4 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…
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…
Light scrambling and focal ratio degradation of thin multimode fibers with different core geometries
Man-Yin Leo Lee, Zhiheng Lin, Chit-Ho Hui +6
The performance of fiber-fed astronomical spectrographs is highly influenced by the properties of fibers. The near-field and far-field scrambling characteristics have a profound im…
Ionized gas in quiescent galaxies: Temperature measurement and constraint on the ionization source
Man-Yin Leo Lee, Renbin Yan, Xihan Ji +5
In non-star-forming, passively evolving galaxies, regions with emission lines dominated by low-ionization species are classified as Low-Ionization Emission Regions (LIERs). The ion…