4 papers
A Sample of IRAS Infrared-Selected Seyfert 1.5 Galaxies: Infrared-Color Dominated Eigenvector 1
J. Wang, J. Y. Wei, X. T. He
The well-documented E1 relationships are first extended to infrared color and flux ratio [OIII]/H by comparing emission line properties to continuum properti…
Variability of Optical \ion{Fe}{ii} Complex in Narrow-Line Seyfert 1 Galaxy NGC 4051
J. Wang, J. Y. Wei, X. T. He
The variability of optical FeII blends in NGC 4051 is examined from spectra extracted from the AGN Watch program.In our analysis, the FeII complex are subtracted and measured with…
Variability of Broad and Blueshifted Component of [OIII]5007 in IZWI
J. Wang, J. Y. Wei, X. T. He
Although the existence of asymmetrical profile of [OIII]5007 has been discovered for ages, its filiation and physics are poorly understood. Two new spectra of I ZWI taken on Nov…
NIR Luminosity Function of Galaxies in Close Major-Merger Pairs and Mass Dependence of Merger Rate
C. K. Xu, Y. C. Sun, X. T. He
A sample of close major-merger pairs (projected separation kpc, band magnitude difference mag) is selected from the…