Authors
Gerrit S Farren, Alex Krolewski, Niall MacCrann, Simone Ferraro, Irene Abril-Cabezas, Rui An, Zachary Atkins, Nicholas Battaglia, J Richard Bond, Erminia Calabrese, Steve K Choi, Omar Darwish, Mark J Devlin, Adriaan J Duivenvoorden, Jo Dunkley, J Colin Hill, Matt Hilton, Kevin M Huffenberger, Joshua Kim, Thibaut Louis, Mathew S Madhavacheril, Gabriela A Marques, Jeff McMahon, Kavilan Moodley, Lyman A Page, Bruce Partridge, Frank J Qu, Emmanuel Schaan, Neelima Sehgal, Blake D Sherwin, Cristóbal Sifón, Suzanne T Staggs, Alexander Van Engelen, Cristian Vargas, Lukas Wenzl, Martin White, Edward J Wollack
Publication date
2024/5/2
Journal
The Astrophysical Journal
Volume
966
Issue
2
Pages
157
Publisher
IOP Publishing
Description
We present tomographic measurements of structure growth using cross-correlations of Atacama Cosmology Telescope (ACT) DR6 and Planck cosmic microwave background (CMB) lensing maps with the unWISE Blue and Green galaxy samples, which span the redshift ranges 0.2≲ z≲ 1.1 and 0.3≲ z≲ 1.8, respectively. We improve on prior unWISE cross-correlations not just by making use of the new, high-precision ACT DR6 lensing maps, but also by including additional spectroscopic data for redshift calibration and by analyzing our measurements with a more flexible theoretical model. We determine the amplitude of matter fluctuations at low redshifts (z≃ 0.2–1.6), finding
Total citations
202413
Scholar articles
GS Farren, A Krolewski, N MacCrann, S Ferraro… - The Astrophysical Journal, 2024