Biased Tracers of Two Fluids in the Lagrangian Picture

28 May 2019 Chen Shi-Fan Castorina Emanuele White Martin

We explore Lagrangian perturbation theory (LPT) for biased tracers in the presence of two fluids, focusing on the case of cold dark matter (CDM) and baryons. The presence of two fluids induces corrections to the Lagrangian bias expansion and tracer advection, both of which we formulate as expansions in the three linear modes of the Lagrangian equations of motion... (read more)

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  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS