45 citations · 474 across the 36 of their papers we have counts for
22 papers · 1 filter
Calibration of CMB Polarisation Using Cross-Experiment Correlations
Claire Rigouzzo, Eugene Lim, Susanna Azzoni +1
Parity-violating physics in the Universe can generate correlations between the Cosmic Microwave Background (CMB) - and -modes, but detecting such signals requires extremely a…
Robust CMB B-mode analysis with Needlet-ILC and simulation-based inference
Adriaan J. Duivenvoorden, Kristen Surrao, Adrian E. Bayer +4
We explore a novel analysis framework for parameter inference with large-scale CMB polarization data. Our method uses simulation-based inference combined with the needlet internal…
The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes
The Simons Observatory Collaboration, I. Abril-Cabezas, S. Adachi +479
We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027,…
The Simons Observatory: Assessing the Impact of Dust Complexity on the Recovery of Primordial -modes
Yiqi Liu, Susanna Azzoni, Susan E. Clark +14
We investigate how dust foreground complexity can affect measurements of the tensor-to-scalar ratio, , in the context of the Simons Observatory, using a cross-spectrum component…
The Simons Observatory: Quantifying the impact of beam chromaticity on large-scale B-mode science
Nadia Dachlythra, Kevin Wolz, Susanna Azzoni +17
The Simons Observatory (SO) Small Aperture Telescopes (SATs) will observe the Cosmic Microwave Background (CMB) temperature and polarization at six frequency bands. Within these ba…
The Simons Observatory: Validation of reconstructed power spectra from simulated filtered maps for the Small Aperture Telescope survey
Carlos Hervías-Caimapo, Kevin Wolz, Adrien La Posta +33
We present a transfer function-based method to estimate angular power spectra from filtered maps for cosmic microwave background (CMB) surveys. This is especially relevant for expe…
Requirements on the gain calibration for LiteBIRD polarisation data with blind component separation
F. Carralot, A. Carones, N. Krachmalnicoff +106
Future cosmic microwave background (CMB) experiments are primarily targeting a detection of the primordial -mode polarisation. The faintness of this signal requires exquisite co…
The Simons Observatory: component separation pipelines for B-modes
Kevin Wolz, Susanna Azzoni, Carlos Hervías-Caimapo +5
The upcoming Simons Observatory (SO) Small Aperture Telescopes aim at observing the degree-scale anisotropies of the polarized CMB to constrain the primordial tensor-to-scalar rati…
The Simons Observatory: Combining delensing and foreground cleaning for improved constraints on inflation
Emilie Hertig, Kevin Wolz, Toshiya Namikawa +3
The Simons Observatory (SO), a next-generation ground-based CMB experiment in its final stages of construction, will target primordial -modes with unprecedented sensitivity to s…
The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer -mode delensing for improved constraints on inflation
Emilie Hertig, Kevin Wolz, Toshiya Namikawa +16
The Simons Observatory (SO), due to start full science operations in early 2025, aims to set tight constraints on inflationary physics by inferring the tensor-to-scalar ratio f…
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…
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\,…
The European Low Frequency Survey
Aniello Mennella, Kam Arnold, Susanna Azzoni +18
In this paper we present the European Low Frequency Survey (ELFS), a project that will enable foregrounds-free measurements of primordial -mode polarization to a level 10…
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…
The Simons Observatory: pipeline comparison and validation for large-scale B-modes
K. Wolz, S. Azzoni, C. Hervias-Caimapo +14
The upcoming Simons Observatory Small Aperture Telescopes aim at achieving a constraint on the primordial tensor-to-scalar ratio at the level of , observin…
Cosmology with 6 parameters in the Stage-IV era: efficient marginalisation over nuisance parameters
Boryana Hadzhiyska, Kevin Wolz, Susanna Azzoni +4
The analysis of photometric large-scale structure data is often complicated by the need to account for many observational and astrophysical systematics. The elaborate models needed…
A hybrid map- component separation method for primordial CMB -mode searches
Susanna Azzoni, David Alonso, Maximilian H. Abitbol +2
The observation of the polarised emission from the Cosmic Microwave Background (CMB) from future ground-based and satellite-borne experiments holds the promise of indirectly detect…
Contribution to the 2022 Cosmology session of the 56th Rencontres de Moriond: Moment expansion of polarized dust SED: A new path towards capturing the CMB -modes with LiteBIRD
L. Vacher, J. Aumont, L. Montier +3
Characterizing accurately the polarized dust emission from our Galaxy will be decisive for the quest for the Cosmic Microwave Background (CMB) primordial -modes. The incomplete…
In-flight polarization angle calibration for LiteBIRD: blind challenge and cosmological implications
Nicoletta Krachmalnicoff, Tomotake Matsumura, Elena de la Hoz +67
We present a demonstration of the in-flight polarization angle calibration for the JAXA/ISAS second strategic large class mission, LiteBIRD, and estimate its impact on the measurem…
The Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing
Toshiya Namikawa, Anton Baleato Lizancos, Naomi Robertson +32
We introduce and validate a delensing framework for the Simons Observatory (SO), which will be used to improve constraints on inflationary gravitational waves (IGWs) by reducing th…
A minimal power-spectrum-based moment expansion for CMB B-mode searches
S. Azzoni, M. H. Abitbol, D. Alonso +3
The characterization and modeling of polarized foregrounds has become a critical issue in the quest for primordial -modes. A typical method to proceed is to factorize and parame…
The Simons Observatory: gain, bandpass and polarization-angle calibration requirements for B-mode searches
Maximilian H. Abitbol, David Alonso, Sara M. Simon +45
We quantify the calibration requirements for systematic uncertainties for next-generation ground-based observatories targeting the large-angle -mode polarization of the Cosmic M…