Lensing convergence and anisotropic dark energy in galaxy redshift
  surveys
  Analyses of upcoming galaxy surveys will require careful modelling of
relevant observables such as the power spectrum of galaxy counts in harmonic
space $C_\ell(z,z')$. We investigate the impact of disregarding relevant
relativistic effects by considering a model of dark energy including constant
sound speed, constant equation of state $w_0$, and anisotropic stress. Here we
show that neglecting the effect of lensing convergence will lead to substantial
shifts in cosmological parameters such as the galaxy bias $b_0$, the value of
the dark energy equation of state today $w_0$, and the Hubble constant $H_0$.
Interestingly, neglecting the effect of lensing convergence in this kind of
models results in shifting $H_0$ downwards, something which could shed light on
the current tension between local and CMB determinations of the Hubble
constant.
