Imprints of local lightcone projection effects on the galaxy bispectrum. III Relativistic corrections from nonlinear dynamical evolution on large-scales

Understand

The galaxy bispectrum is affected on equality scales and above by relativistic observational effects, at linear and nonlinear order.

• These lightcone effects include local contributions from Doppler and gravitational potential terms, as well as integrated contributions like lensing, together with all the couplings at nonlinear order.
• We recently presented the correction to the galaxy bispectrum from all local lightcone effects up to second order in perturbations, using a plane-parallel approximation.
• Here we update our previous result by including the effects from relativistic nonlinear dynamical evolution.