Statistical equilibrium of silicon in the atmospheres of metal-poor stars (2009)
Shi, J. R., Gehren, T., Mashonkina, L., Zhao, G.
Aims. The statistical equilibrium of neutral and ionized silicon in the atmospheres of metal-poor stars is discussed. Non-local thermodynamic equilibrium effects are investigated and the silicon...
Beryllium abundances in metal-poor stars (2008)
Tan, K. F., Shi, J. R., Zhao, G.
We have determined beryllium abundances for 25 metal-poor stars based on the high resolution and high signal-to-noise ratio spectra from the VLT/UVES database. Our results confirm that Be abundances...
Statistical equilibrium of silicon in the solar atmosphere (2008)
Shi, J. R., Gehren, T., Butler, K., Mashonkina, L. I., Zhao, G.
The statistical equilibrium of neutral and ionised silicon in the solar photosphere is investigated. Line formation is discussed and the solar silicon abundance determined. High-resolution solar...
Non-LTE line formation for heavy elements in four very metal-poor stars (2007)
Mashonkina, L., Zhao, G., Gehren, T., Aoki, W., Bergemann, M., Noguchi, K., ...
Stellar parameters and abundances of Na, Mg, Al, K, Ca, Sr, Ba, and Eu are determined for four very metal-poor stars (-2.66 < [Fe/H] < -2.15) based on non-LTE line formation and analysis of...
The lithium-rotation correlation for WTTS in Taurus-Auriga (2006)
Xing, L. F., Shi, J. R., Wei, J. Y.
Surface lithium abundance and rotation velocity can serve as powerful and mutually complementary diagnostics of interior structure of stars. So far, the processes responsible for the lithium...
Electron density diagnostic potential of Ar XIV soft X-ray emission lines (2006)
Liang, G. Y., Zhao, G., Zeng, J. L., Shi, J. R.
Theoretical electron density-sensitive line ratios $R_1 - R_6$ of Ar XIV soft X-ray emission lines are presented. We found that these line ratios are sensitive to electron density $n_e$, and the...
Liang, G. Y., Zhao, G., Shi, J. R.
Electron density diagnostics based on a line intensity ratio of Si X are applied to the X-ray spectra of Procyon, $\alpha$ Cen A$&$B, Capella and $\epsilon$ Eri measured with the Low Energy...
Meevasana, W., Ingle, N. J. C., Lu, D. H., Shi, J. R., Baumberger, F., Shen, K. M., ...
A recent highlight in the study of high-Tc superconductors is the observation of band renormalization / self-energy effects on the quasiparticles. This is seen in the form of kinks in the...
Sodium abundances in nearby disk stars (2004)
Shi, J. R., Gehren, T., Zhao, G.
We present sodium abundances for a sample of nearby stars. All results have been derived from NLTE statistical equilibrium calculations. The influence of collisional interactions with electrons and...
Filtered cathodic vacuum arc deposition of thin film copper (2001)
Lau, S. P., Cheng, Y. H., Shi, J. R., Cao, Peng, Tay, B. K., Shi, X.
A major obstacle for metallization application of filtered cathodic vacuum arc (FCVA) is the presence of micro-particles. By using an off-plane double bend magnetic filter, metallic films can be...
Filtered cathodic vacuum arc deposition of thin film copper (2001)
Lau, S. P., Cheng, Y. H., Shi, J. R., Cao, Peng, Tay, B. K., Shi, X.
A major obstacle for metallization application of filtered cathodic vacuum arc (FCVA) is the presence of micro-particles. By using an off-plane double bend magnetic filter, metallic films can be...
Sources of carbon and the evolution of the abundance of CNO elements (2001)
Liang, Y. C., Zhao, G., Shi, J. R.
Using the standard infall model of Galactic chemical evolution, we explore the origin of carbon and calculate the abundance evolution of CNO elements for 8 different models of stellar nucleosynthesis...
Cerenkov Line-like Radiation, The Extended and Improved Formulae System (2000)
You, J. H., Xu, Y. D., Liu, D. B., Shi, J. R., Jin, G. X.
You & Cheng (1980) argued that, for relativistic electrons moving through a dense gas, the Cerenkov effect will produce peculiar atomic and/or molecular emission lines--Cerenkov lines. They presented...