Observational Constraints on Varying Alpha in $\Lambda(\alpha)$CDM
  Cosmology
  In this work, we consider the so-called $\Lambda(\alpha)$CDM cosmology with
$\Lambda\propto\alpha^{-6}$ while the fine-structure "constant" $\alpha$ is
varying. In this scenario, the accelerated expansion of the universe is driven
by the cosmological "constant" $\Lambda$ (equivalently the vacuum energy), and
the varying $\alpha$ is driven by a subdominant scalar field $\phi$ coupling
with the electromagnetic field. The observational constraints on the varying
$\alpha$ and $\Lambda\propto\alpha^{-6}$ models with various couplings
$B_F(\phi)$ between the subdominant scalar field $\phi$ and the electromagnetic
field are considered.
