A Sample of IRAS Infrared-Selected Seyfert 1.5 Galaxies: Infrared-Color $\alpha (60,25)$ Dominated Eigenvector 1

J. Wang, J. Y. Wei, X. T. He

The well-documented E1 relationships are first extended to infrared color $\alpha (60,25)$ and flux ratio [OIII]/H${\beta }_{\mathrm{n}}$ by comparing emission line properties to continuum properti…