42 citations · 54 across the 3 of their papers we have counts for
7 papers
KaRMMa 2.0 -- Kappa Reconstruction for Mass Mapping
Pier Fiedorowicz, Eduardo Rozo, Supranta S. Boruah
We present KaRMMa 2.0, an updated version of the mass map reconstruction code introduced in Fiedorowicz et al. (2022). KaRMMa is a full-sky Bayesian algorithm for reconstructing we…
Map-based cosmology inference with lognormal cosmic shear maps
Supranta Sarma Boruah, Eduardo Rozo, Pier Fiedorowicz
Most cosmic shear analyses to date have relied on summary statistics (e.g. and ). These types of analyses are necessarily sub-optimal, as the use of summary statistics i…
Peculiar-velocity cosmology with Types Ia and II supernovae
Benjamin E. Stahl, Thomas de Jaeger, Supranta S. Boruah +3
We present the Democratic Samples of Supernovae (DSS), a compilation of 775 low-redshift Type Ia and II supernovae (SNe Ia & II), of which 137 SN Ia distances are derived via the n…
Peculiar velocities in the local Universe: comparison of different models and the implications for and dark matter
Supranta S. Boruah, Michael J. Hudson, Guilhem Lavaux
When measuring the value of the Hubble parameter, , it is necessary to know the recession velocity free of the effects of peculiar velocities. In this work, we study different…
Cosmic flows in the nearby Universe: new peculiar velocities from SNe and cosmological constraints
Supranta S. Boruah, Michael J. Hudson, Guilhem Lavaux
The peculiar velocity field offers a unique way to probe dark matter density field on large scales at low redshifts. In this work, we have compiled a new sample of 465 peculiar vel…
Gravitational Potential from small-scale clustering in action space: Application to Gaia DR2
Tianyi. Yang, Supranta Sarma Boruah, Niayesh. Afshordi
Most measurements of mass in Astronomy that use kinematics of stars or gas rely on assumptions of equilibrium that are often hard to verify. Instead, we develop a novel idea that u…