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20222025
most citedLiteBIRD Science Goals and Forecasts. A Case Study of the Origin of Primordial Gravitational Waves using Large-Scale CMB Polarization

24 citations

13 papers

astro-ph.IM2025

On the computational feasibility of Bayesian end-to-end analysis of LiteBIRD simulations within Cosmoglobe

R. Aurvik, M. Galloway, E. Gjerløw +107

We assess the computational feasibility of end-to-end Bayesian analysis of the JAXA-led LiteBIRD experiment by analysing simulated time ordered data (TOD) for a subset of detectors…

astro-ph.IM2025

A Simulation Framework for the LiteBIRD Instruments

M. Tomasi, L. Pagano, A. Anand +111

LiteBIRD, the Lite (Light) satellite for the study of -mode polarization and Inflation from cosmic background Radiation Detection, is a space mission focused on primordial cosmo…

astro-ph.CO2025★ 1 cited

Requirements on bandpass resolution and measurement precision for LiteBIRD

S. Giardiello, A. Carones, T. Ghigna +95

In this work, we study the impact of an imperfect knowledge of the instrument bandpasses on the estimate of the tensor-to-scalar ratio in the context of the next-generation Lit…

astro-ph.CO2025

Probing dipolar power asymmetry with galaxy clustering and intrinsic alignments

Keita Minato, Atsushi Taruya, Teppei Okumura +1

We investigate the prospects for probing large-scale statistical anisotropy through galaxy clustering and intrinsic alignments (IA) in Stage IV galaxy surveys. Specifically, we con…

astro-ph.IM2024★ 3 cited

Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission

Y. Takase, L. Vacher, H. Ishino +105

Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial -mode power spectrum of the Cosmic Microwave Background (CMB). Since this pro…

astro-ph.CO2023★ 11 cited

Imprints of primordial magnetic fields on intrinsic alignments of galaxies

Shohei Saga, Maresuke Shiraishi, Kazuyuki Akitsu +1

Primordial magnetic fields (PMFs) are one of the plausible candidates for the origin of the observed large-scale magnetic fields. While many proposals have been made for the genera…

astro-ph.CO2023★ 21 cited

LiteBIRD Science Goals and Forecasts: Improving Sensitivity to Inflationary Gravitational Waves with Multitracer Delensing

T. Namikawa, A. I. Lonappan, C. Baccigalupi +119

We estimate the efficiency of mitigating the lensing -mode polarization, the so-called delensing, for the experiment with multiple external data sets of lensing-mass…

astro-ph.CO2023★ 12 cited

LiteBIRD Science Goals and Forecasts: A full-sky measurement of gravitational lensing of the CMB

A. I. Lonappan, T. Namikawa, G. Piccirilli +119

We explore the capability of measuring lensing signals in full-sky polarization maps. With a arcmin beam width and an impressively low polarization noise of $2.16\,…

astro-ph.CO2023★ 24 cited

LiteBIRD Science Goals and Forecasts. A Case Study of the Origin of Primordial Gravitational Waves using Large-Scale CMB Polarization

P. Campeti, E. Komatsu, C. Baccigalupi +107

We study the possibility of using the satellite -mode survey to constrain models of inflation producing specific features in CMB angular power spectra. We explore a p…

astro-ph.CO2023★ 15 cited

Parity-violating scalar trispectrum from a rolling axion during inflation

Tomohiro Fujita, Tomoaki Murata, Ippei Obata +1

We study a mechanism of generating the trispectrum (4-point correlation) of curvature perturbation through the dynamics of a spectator axion field and U(1) gauge field during infla…

astro-ph.CO2023★ 12 cited

Statistical anisotropy in galaxy ellipticity correlations

Maresuke Shiraishi, Teppei Okumura, Kazuyuki Akitsu

As well as the galaxy number density and peculiar velocity, the galaxy intrinsic alignment can be used to test the cosmic isotropy. We study distinctive impacts of the isotropy bre…

astro-ph.CO2023★ 23 cited

Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations

U. Fuskeland, J. Aumont, R. Aurlien +114

LiteBIRD is a planned JAXA-led CMB B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitat…

astro-ph.CO2022★ 23 cited

New constraints on axion-gauge field dynamics during inflation from and BICEP/Keck data sets

Paolo Campeti, Ogan Özsoy, Ippei Obata +1

We present new constraints on spectator axion- gauge field interactions during inflation using the latest (PR4) and BICEP/Keck 2018 data releases. This model c…