Explanipedia

In-flight performance of SPIDER's 280 GHz receivers Open

Elle C. Shaw, P. A. R. Ade, Scott Akers, M. Amiri, Jason E. Austermann , et al. · 2024

SPIDER is a balloon-borne instrument designed to map the cosmic microwave background at degree-angular scales in the presence of Galactic foregrounds. Spider has mapped a large sky area in the Southern Hemisphere using more than 2000 trans…

In-Flight Gain Monitoring of SPIDER’s Transition-Edge Sensor Arrays Open

J. P. Filippini, A. E. Gambrel, A. Rahlin, E. Young, P. A. R. Ade , et al. · 2022

A Simulation-based Method for Correcting Mode Coupling in CMB Angular Power Spectra Open

Jason S.-Y. Leung, John W. Hartley, Johanna M. Nagy, C. B. Netterfield, J. A. Shariff , et al. · 2022

Modern cosmic microwave background (CMB) analysis pipelines regularly employ complex time-domain filters, beam models, masking, and other techniques during the production of sky maps and their corresponding angular power spectra. However, …

A Constraint on Primordial B-modes from the First Flight of the Spider Balloon-borne Telescope Open

P. A. R. Ade, M. Amiri, Steven J. Benton, A. S. Bergman, R. Bihary , et al. · 2022

We present the first linear polarization measurements from the 2015 long-duration balloon flight of Spider , which is an experiment that is designed to map the polarization of the cosmic microwave background (CMB) on degree angular scales.…

The XFaster Power Spectrum and Likelihood Estimator for the Analysis of Cosmic Microwave Background Maps Open

A. E. Gambrel, A. Rahlin, Xue Song, Carlo Contaldi, P. A. R. Ade , et al. · 2021

We present the XFaster analysis package, a fast, iterative angular power spectrum estimator based on a diagonal approximation to the quadratic Fisher matrix estimator. It uses Monte Carlo simulations to compute noise biases and filter tran…

Design and pre-flight performance of SPIDER 280 GHz receivers Open

E. C. Shaw, P. A. R. Ade, Scott Akers, M. Amiri, Jason E. Austermann , et al. · 2020

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature …

SPIDER: CMB Polarimetry from the Edge of Space Open

R. Gualtieri, J. P. Filippini, P. A. R. Ade, M. Amiri, Steven J. Benton , et al. · 2018

Erratum: “A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-degree Scales with POLARBEAR” (2014, ApJ, 794, 171) Open

P. A. R. Ade, Y. Akiba, A. E. Anthony, Kam Arnold, M. Atlas , et al. · 2017

International audience

The Simons Array CMB polarization experiment Open

N. Stebor, P. A. R. Ade, Y. Akiba, C. Aleman, Kam Arnold , et al. · 2016

© 2016 SPIE. The Simons Array is a next generation cosmic microwave background (CMB) polarization experiment whose science target is a precision measurement of the B-mode polarization pattern produced both by inflation and by gravitational…

Galaxy cluster scaling relations measured with APEX-SZ Open

A. N. Bender, James E. Kennedy, P. A. R. Ade, Kaustuv Basu, F. Bertoldi , et al. · 2016

We present thermal Sunyaev–Zel'dovich effect (SZE) measurements for 42 galaxy clusters observed at 150 GHz with the APEX-SZ experiment. For each cluster, we model the pressure profile and calculate the integrated Comptonization Y to estima…

POLARBEAR constraints on cosmic birefringence and primordial magnetic fields Open

P. A. R. Ade, Kam Arnold, M. Atlas, C. Baccigalupi, Darcy Barron , et al. · 2015

We constrain anisotropic cosmic birefringence using four-point correlations of even-parity E-mode and odd-parity B-mode polarization in the cosmic microwave background measurements made by the POLARization of the Background Radiation (POLA…

A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND B-MODE POLARIZATION WITH POLARBEAR Open

P. A. R. Ade, Y. Akiba, A. E. Anthony, Kam Arnold, M. Atlas , et al. · 2015

POLARBEAR is a ground-based experiment located in the Atacama desert of northern Chile. The experiment is designed to measure the Cosmic Microwave Background B-mode polarization at several arcminute resolution. The CMB B-mode polarization …

The thermal design, characterization, and performance of the S pider long-duration balloon cryostat Open

Jon E. Gudmundsson, P. A. R. Ade, M. Amiri, Steven J. Benton, J. Böck , et al. · 2015

MODELING ATMOSPHERIC EMISSION FOR CMB GROUND-BASED OBSERVATIONS Open

Josquin Errard, P. A. R. Ade, Y. Akiba, Kam Arnold, M. Atlas , et al. · 2015

Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on the detectors, it amplifies their effective noise, while its fluctuations introduce spat…

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