Corwin Shiu
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View article: Analysis of Polarized Dust Emission Using Data from the First Flight of SPIDER
Analysis of Polarized Dust Emission Using Data from the First Flight of SPIDER Open
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…
View article: In-flight performance of Spider’s 280-GHz receivers
In-flight performance of Spider’s 280-GHz receivers Open
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View article: In-flight performance of SPIDER's 280 GHz receivers
In-flight performance of SPIDER's 280 GHz receivers Open
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…
View article: Evidence for Spatially Distinct Galactic Dust Populations
Evidence for Spatially Distinct Galactic Dust Populations Open
We present an implementation of a Bayesian mixture model using Hamiltonian Monte Carlo techniques to search for the spatial separation of Galactic dust populations. Utilizing intensity measurements from the Planck High Frequency Instrument…
Design and Performance of a 30/40 GHz Diplexed Focal Plane for the BICEP Array Open
We demonstrate a wideband diplexed focal plane suitable for observing low-frequency foregrounds that are important for cosmic microwave background polarimetry. The antenna elements are composed of slotted bowtie antennas with 60% bandwidth…
View article: Evidence for Spatial Separation of Galactic Dust Populations
Evidence for Spatial Separation of Galactic Dust Populations Open
We present an implementation of a Bayesian mixture model using Hamiltonian Monte Carlo (HMC) techniques to search for spatial separation of Galactic dust populations. Utilizing intensity measurements from Planck High Frequency Instrument (…
View article: A Simulation-based Method for Correcting Mode Coupling in CMB Angular Power Spectra
A Simulation-based Method for Correcting Mode Coupling in CMB Angular Power Spectra Open
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, …
The XFaster Power Spectrum and Likelihood Estimator for the Analysis of Cosmic Microwave Background Maps Open
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…
View article: SuperSpec: development towards a full-scale filter bank
SuperSpec: development towards a full-scale filter bank Open
SuperSpec is a new spectrometer-on-a-chip technology for submm/mm-wave spectroscopy. SuperSpec stands out from other direct-detection submm spectrometer technologies in that the detectors are coupled to a series of resonant filters along a…
Detector modules and spectrometers for the TIME-Pilot [CII] intensity mapping experiment Open
This proceeding presents the current TIME-Pilot instrument design and status with a focus on the close-packed modular detector arrays and spectrometers. Results of laboratory tests with prototype detectors and spectrometers are discussed. …