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42 papers · 2 filters
Hemispherical Variance Anomaly and Reionization Optical Depth
Marcio O'Dwyer, Craig J. Copi, Johanna M. Nagy +3
CMB full-sky temperature data show a hemispherical asymmetry in power nearly aligned with the Ecliptic. In real space, this anomaly can be quantified by the temperature variance in…
Lensing-like tensions in the Planck legacy release
Pavel Motloch, Wayne Hu
We analyze the final release of the Planck satellite data to constrain the gravitational lensing potential in a model-independent manner. The amount of lensing determined from the…
Constraining the second half of reionization with the Lyman- forest
Laura C. Keating, Girish Kulkarni, Martin G. Haehnelt +2
We present an analysis of the evolution of the Lyman-series forest into the epoch of reionization using cosmological radiative transfer simulations in a scenario where reionization…
The Atacama Cosmology Telescope: Component-separated maps of CMB temperature and the thermal Sunyaev-Zel'dovich effect
Mathew S. Madhavacheril, J. Colin Hill, Sigurd Naess +51
Optimal analyses of many signals in the cosmic microwave background (CMB) require map-level extraction of individual components in the microwave sky, rather than measurements at th…
Simulated Predictions for HI at with the Ooty Wide Field Array (OWFA) -- II: Foreground Avoidance
Suman Chatterjee, Somnath Bharadwaj, Visweshwar Ram Marthi
Considering the upcoming OWFA, we use simulations of the foregrounds and the HI 21-cm intensity mapping signal to identify the modes where th…
Cosmology with the thermal-kinetic Sunyaev-Zel'dovich effect
William R. Coulton, Atsuhisa Ota, Alexander van Engelen
Compton scattering of the cosmic microwave background (CMB) from hot ionized gas produces a range of effects, and the leading order effects are the kinetic and thermal Sunyaev Zel'…