149 citations · 161 across the 6 of their papers we have counts for
6 papers
HierArchical Wavelet Coefficients on the Sphere (HAWCS): the Scattering Transform on Spherical Maps
Arefe Abghari, Lukas T. Hergt, Douglas Scott +1
Extracting Gaussian information from data is well understood, but characterizing non-Gaussianity is challenging. We introduce HAWCS, a healpy-based Python package for efficiently c…
Planck PR4 (NPIPE) map-space cosmic birefringence
Raelyn Marguerite Sullivan, Arefe Abghari, Patricia Diego-Palazuelos +2
Cosmic birefringence is an effect where the plane of polarisation of the cosmic microwave background (CMB) is rotated by an angle through coupling to a hypothetical parity-viol…
Methods for CMB map analysis
Raelyn Marguerite Sullivan, Lukas Tobias Hergt, Douglas Scott
This introductory guide aims to provide insight to new researchers in the field of cosmic microwave background (CMB) map analysis on best practices for several common procedures. W…
Reassessment of the dipole in the distribution of quasars on the sky
Arefe Abghari, Emory F. Bunn, Lukas T. Hergt +4
We investigate recent claims by Secrest et al. of an anomalously large amplitude of the dipole in the distribution of CatWISE-selected quasars on the sky. Two main issues indicate…
Cosmic Birefringence from Planck Data Release 4
P. Diego-Palazuelos, J. R. Eskilt, Y. Minami +12
We search for the signature of parity-violating physics in the cosmic microwave background, called cosmic birefringence, using the Planck data release 4. We initially find a birefr…
The CMB Dipole: Eppur Si Muove
Raelyn M. Sullivan, Douglas Scott
The largest temperature anisotropy in the cosmic microwave background (CMB) is the dipole. The simplest interpretation of the dipole is that it is due to our motion with respect to…