45 citations · 78 across the 7 of their papers we have counts for
7 papers
Checking the reliability of equivalent width R23 for estimating metallicities of galaxies
Y. C. Liang, F. Hammer, S. Y. Yin
We verify whether the O/H abundances of galaxies can be derived from the equivalent width (EW) R23 instead of the extinction-corrected flux R23, and eventually propose a method of…
The direct oxygen abundances of metal-rich galaxies derived from electron temperature
Y. C. Liang, F. Hammer, S. Y. Yin +3
We aim to derive the electron temperature Te in the gas of metal-rich star-forming galaxies, which can be obtained from their ratios of auroral lines [O II]7320,7330 to nebular lin…
SDSS J121811.0+465501.2: a new Low Surface Brightness Galaxy with low metallicity
Y. C. Liang, J. Y. Hu, F. S. Liu +1
We serendipitously find a new nearby Low Surface Brightness (LSB) galaxy from SDSS database. We estimate oxygen abundance of its H II region SDSS J121811.0+465501.2 from electron t…
Neutron-Capture Elements in the Double-Enhanced Star HE 1305-0007: a New s- and r-Process Paradigm
Wen-Yuan Cui, D. N. Cui, Y. S. Du +1
The star HE 1305-0007 is a metal-poor double-enhanced star with metallicity [Fe/H] , which is just at the upper limit of the metallicity for the observed double-enhanced sta…
Investigation of the single neutron exposure model for the s-process: the primary nature of the neutron source
Kun Ma, W. Y. Cui, B. Zhang
The primary nature of the C neutron source is very significant for the studies of the s-process nucleosynthesis. In this paper we present an attempt to fit the element abund…
The study about the revised R23-P method for metallicity estimates based on ~20,000 SDSS galaxies
S. Y. Yin, Y. C. Liang, B. Zhang
We select ~20000 metal-rich star-forming galaxies from the SDSS-DR2 to study the R23-P method suggested by Pilyugin et al. for metallicity estimates. The oxygen abundances derived…