2 citations · 3 across the 4 of their papers we have counts for
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Probing primordial non-Gaussianity by reconstructing the initial conditions
Xinyi Chen, Nikhil Padmanabhan, Daniel J. Eisenstein
We propose to constrain the primordial (local-type) non-Gaussianity signal by first reconstructing the initial density field to remove the late time non-Gaussianities introduced by…
Leveraging protohalos and scale-dependent bias to calibrate the BAO scale in real space
Sasha Gaines, Farnik Nikakhtar, Nikhil Padmanabhan +1
The location of the baryon acoustic oscillation (BAO) feature in the two-point correlation function (2PCF) of matter produces a standard ruler that is useful for the measurement of…
Displacement Field Analysis via Optimal Transport: Multi-Tracer Approach to Cosmological Reconstruction
Farnik Nikakhtar, Ravi K. Sheth, Nikhil Padmanabhan +2
We demonstrate the effectiveness of one of the many multi-tracer analyses enabled by Optimal Transport (OT) reconstruction. Leveraging a semi-discrete OT algorithm, we determine th…