Explanipedia

Analysis of Polarized Dust Emission Using Data from the First Flight of SPIDER Open

P. A. R. Ade, M. Amiri, Steven J. Benton, A. S. Bergman, R. Bihary , et al. · 2025

Using data from the first flight of Spider and from the Planck High Frequency Instrument, we probe the properties of polarized emission from interstellar dust in the Spider observing region. Component-separation algorithms operating in bot…

Sidelobe modeling and mitigation for a three mirror anastigmat cosmic microwave background telescope Open

Ian Gullett, B. A. Benson, Robert Besuner, R. Bihary, J. E. Carlstrom , et al. · 2023

Telescopes measuring cosmic microwave background (CMB) polarization on large angular scales require exquisite control of systematic errors to ensure the fidelity of the cosmological results. In particular, far-sidelobe contamination from w…

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…

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

A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument Open

Sean Bryan, P. A. R. Ade, M. Amiri, Steven J. Benton, R. Bihary , et al. · 2016

We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the cosmic microwave background at 95 GHz and 150 GHz during a stratospheric b…

A cryogenic rotation stage with a large clear aperture for a half-wave plate Open

Sean Bryan, P. A. R. Ade, M. Amiri, Steven J. Benton, R. Bihary , et al. · 2015

We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the Cosmic Microwave Background at 95 GHz and 150 GHz during a stratospheric b…

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