Donald Wiebe
A5015706348- Religion and Society Interactions
- Study and Philosophy of Religion
- Radio Astronomy Observations and Technology
- Superconducting and THz Device Technology
- American Constitutional Law and Politics
- Religious Studies and Spiritual Practices
- Galaxies: Formation, Evolution, Phenomena
- Cosmology and Gravitation Theories
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Biblical Studies and Interpretation
- Religious Education and Schools
- Astronomy and Astrophysical Research
- Astrophysics and Cosmic Phenomena
- Religion, Society, and Development
- Evolution and Science Education
- Religion, Spirituality, and Psychology
- Mormonism, Religion, and History
- Dark Matter and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Theology and Philosophy of Evil
- Astronomical Observations and Instrumentation
- Geophysics and Gravity Measurements
- Reformation and Early Modern Christianity
- Evolutionary Game Theory and Cooperation
Trinity College
2006-2025
University of Toronto
2011-2025
University of British Columbia
2015-2024
University of Chicago
2021-2023
National Institute of Standards and Technology
2016
Kavli Institute for Particle Astrophysics and Cosmology
2016
SLAC National Accelerator Laboratory
2016
Max Planck Institute for Radio Astronomy
2015
Max Planck Society
2015
University of South Africa
2013
We present results from an analysis of all data taken by the BICEP2, Keck Array, and BICEP3 CMB polarization experiments up to including 2018 observing season. add additional Array observations at 220 GHz 95 previous 95/150/220 dataset. The Q/U maps now reach depths 2.8, 8.8 μK_{CMB} arcmin 95, 150, GHz, respectively, over effective area ≈600 square degrees ≈400 150 GHz. achieve a signal-to-noise ratio on polarized dust emission exceeding that Planck 353 take auto- cross-spectra between...
We present results from an analysis of all data taken by the bicep2/Keck CMB polarization experiments up to and including 2015 observing season. This includes first Keck Array observations at 220 GHz additional 95 150 GHz. The Q U maps reach depths 5.2, 2.9, 26 μKCMB arcmin 95, 150, GHz, respectively, over effective area ≈400 square degrees. achieve a signal noise on polarized dust emission approximately equal that Planck 353 take auto cross spectra between these publicly available WMAP...
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift scan radio telescope operating across the 400-800 MHz band. CHIME located at Dominion Radio Astrophysical Observatory near Penticton, BC Canada. instrument designed to map neutral hydrogen over redshift range 0.8 2.5 constrain expansion history of Universe. This goal drives design features instrument. consists four parallel cylindrical reflectors, oriented north-south, each 100 m $\times$ 20 and outfitted with 256 element...
We present a detection of 21-cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Radio observations acquired over 102 nights are used to construct maps which foreground filtered stacked on angular spectral locations luminous red galaxies (LRG), line (ELG), quasars (QSO) eBOSS clustering catalogs. find decisive evidence for when stacking all three tracers LSS, logarithm Bayes Factor equal 18.9 10.8...
We report on the sensitivity of SPIRE photometers <i>Herschel<i/> Space Observatory. Specifically, we measure confusion noise from observations taken during science demonstration phase Multi-tiered Extragalactic Survey. Confusion is defined to be spatial variation sky intensity in limit infinite integration time, and found consistent among different fields our survey at level 5.8, 6.3 6.8 mJy/beam 250, 350 500 <i>μ<i/>m, respectively. These results, together with measured instrument noise,...
The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) has made 1 deg2, deep, confusion-limited maps at three different bands, centered on the Great Observatories Origins Deep Survey South Field. By calculating covariance of these with catalogs 24 μm sources from Far-Infrared Extragalactic Legacy Survey, we have determined that total submillimeter intensities are 8.60 ± 0.59, 4.93 0.34, and 2.27 0.20 nW m−2 sr−1 250, 350, 500 μm, respectively. These numbers more precise than...
The Balloon-borne Large Aperture Submillimeter Telescope (BLAST) is a suborbital surveying experiment designed to study the evolutionary history and processes of star formation in local galaxies (including Milky Way) at cosmological distances. BLAST continuum camera, which consists 270 detectors distributed between three arrays, observes simultaneously broadband (30%) spectral windows 250, 350, 500 μm. optical design based on 2 m diameter telescope, providing diffraction-limited resolution...
Abstract The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a novel transit radio telescope operating across the 400–800 MHz band. CHIME composed of four 20 m × 100 semicylindrical paraboloid reflectors, each which has 256 dual-polarization feeds suspended along its axis, giving it ≳200 deg 2 field view. This, combined with wide bandwidth, high sensitivity, and powerful correlator, makes an excellent instrument for detection fast bursts (FRBs). Fast Radio Burst Project (CHIME/FRB)...
We investigate the correlation between far-infrared (FIR) and radio luminosities in distant galaxies, a lynchpin of modern astronomy. use data from Balloon-borne Large Aperture Submillimetre Telescope (BLAST), Spitzer, Apex BOlometer CamerA (LABOCA), Very Array (VLA) Giant Metre-wave Radio (GMRT) Extended Chandra Deep Field South (ECDFS). For catalogue BLAST 250-micron-selected we re-measure 70--870-micron flux densities at positions their most likely 24-micron counterparts, which have...
Abstract We present the first linear polarization measurements from 2015 long-duration balloon flight of Spider , which is an experiment that designed to map cosmic microwave background (CMB) on degree angular scales. The results these include maps and power spectra observations 4.8% sky at 95 150 GHz, along with internal consistency tests data. While polarized CMB anisotropy primordial density perturbations dominant signal in this region sky, Galactic dust emission also detected high...
We report on the design and performance of BICEP3 instrument its first three-year data set collected from 2016 to 2018. is a 52cm aperture, refracting telescope designed observe polarization cosmic microwave background (CMB) degree angular scales at 95GHz. It started science observation South Pole in with 2400 antenna-coupled transition-edge sensor (TES) bolometers. The receiver demonstrated new technologies such as large-diameter alumina optics, Zotefoam infrared filters, flux-activated...
We detect correlations in the cosmic far-infrared background due to clustering of star-forming galaxies observations made with Balloon-borne Large Aperture Submillimeter Telescope, at 250, 350, and 500 μm. perform jackknife other tests confirm reality signal. The measured are well fitted by a power law over scales 5′–25′, ΔI/I = 15.1% ± 1.7%. adopt specific model for submillimeter sources which contribution comes from redshift ranges 1.3 ⩽ z 2.2, 1.5 2.7, 1.7 3.2, μm, respectively. With...
The submillimeter opacity of dust in the diffuse Galactic interstellar medium (ISM) has been quantified using a pixel-by-pixel correlation images continuum emission with proxy for column density. We used three BLAST bands at 250, 350, and 500 \mu m one IRAS 100 m. is near-infrared color excess, E(J-Ks), obtained from 2MASS. Based on observations stars, we show how well this excess correlated total hydrogen density regions moderate extinction. ratio to density, emissivity, then known...
ABSTRACT We report the discovery of a bright ( f (250 μm)>400 mJy), multiply lensed submillimeter galaxy HERMES J105751.1+573027 in Herschel /SPIRE Science Demonstration Phase data from HerMES project. Interferometric 880 μm Submillimeter Array observations resolve at least four images with large separation ∼9″. A high-resolution adaptive optics K p image Keck/NIRC2 clearly shows strong lensing arcs. Follow-up spectroscopy gives redshift z = 2.9575, and model total magnification μ ∼ 11 ±...
We evaluate the ability of SPIDER, a balloon-borne polarimeter, to detect divergence-free polarization pattern ("B-modes") in Cosmic Microwave Background (CMB). In inflationary scenario, amplitude this signal is proportional that primordial scalar perturbations through tensor-to-scalar ratio r. show expected level systematic error SPIDER instrument significantly below an interesting cosmological with r=0.03. present scanning strategy enables us minimize uncertainty reconstruction Stokes...
Journal Article Religious Studies as a Scientific Discipline: The Persistence of Delusion Get access Luther H. Martin, Martin Search for other works by this author on: Oxford Academic Google Scholar Donald Wiebe * *Luther University Vermont, 161 St. Paul Street, #304, Burlington, VT 05401, USA. E-mail: luther.martin@uvm.edu. Wiebe, Trinity College, 6 Hoskin Avenue, Toronto, Ontario, Canada M5S 1H8. dwiebe@trinity.utoronto.ca. the American Academy Religion, Volume 80, Issue 3, September 2012,...
Abstract We report the detection of 21 cm emission at an average redshift <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mover accent="true"> <mml:mrow> <mml:mi>z</mml:mi> </mml:mrow> <mml:mo>¯</mml:mo> </mml:mover> <mml:mo>=</mml:mo> <mml:mn>2.3</mml:mn> </mml:math> in cross-correlation data from Canadian Hydrogen Intensity Mapping Experiment (CHIME) with measurements Ly α forest eBOSS. Data collected by CHIME over 88 days 400–500 MHz frequency band (1.8...
Preface and Acknowledgements - From Theology to Religious Studies: On the Emergence of a New Science A Return Theology: Resistance Scientific Method Case Studies in Failure Nerve Science, Religion, Study Religion Debate Belief, Faith, Humanistic Versus World Academy Religion? Select Bibliography Index
We describe the application of a statistical method to estimate submillimeter galaxy number counts from confusion-limited observations by Balloon-borne Large Aperture Submillimeter Telescope (BLAST). Our is based on maximum likelihood fit pixel histogram, sometimes called "P(D)," an approach which has been used before probe faint counts, difference being that here we advocate its use even for sources with relatively high signal-to-noise ratios. This advantage over standard techniques source...
We describe a mapmaking method that we have developed for the Balloon-borne Large Aperture Submillimeter Telescope (BLAST) experiment, but which should general application to data from other submillimeter arrays. Our uses maximum likelihood-based approach, with several approximations, allows images be constructed using large amounts of fairly modest computer memory and processing requirements. This new Signal Noise Estimation Procedure Including Correlations (SANEPIC), builds on previous...
We present first results from an unbiased 50 deg2 submillimeter Galactic survey at 250, 350, and 500 μm the 2006 flight of Balloon-borne Large Aperture Submillimeter Telescope. The map has resolution ranging 36'' to 60'' in three bands spanning thermal emission peak cold starless cores. determine temperature, luminosity, mass more than 1000 compact sources a range evolutionary stages statistical characterization population. From comparison with C18O data, we find dust opacity per gas mass,...
An extraordinary survey, in four volumes, of the religious belief and practice all 276 world's nations territories. From Aboriginal Cult Maria Lionza Venezuela to Zionist Apostolic churches South Africa Zimbabwe, Religions World is only comprehensive compilation existing major communities. This four-volume survey examines history key communities 240 recognized More than 200 international experts contributed 1,200+ entries covering each group's origin, history, organization, ecumenical...
ABSTRACT We present measurements of polarization lensing using the 150 GHz maps, which include all data taken by BICEP2 and Keck Array Cosmic Microwave Background experiments up to including 2014 observing season (BK14). Despite their modest angular resolution ( ), excellent sensitivity (∼3 μ K-arcmin) these maps makes it possible directly reconstruct potential only information at larger scales ). From auto-spectrum reconstructed potential, we measure an amplitude spectrum be Planck ΛCDM...
BICEP3 is a $550~mm$ aperture telescope with cold, on-axis, refractive optics designed to observe at the $95~GHz$ band from South Pole. It newest member of BICEP/Keck family inflationary probes specifically measure polarization cosmic microwave background (CMB) degree-angular scales. house 1280 dual-polarization pixels, which, when fully-populated, totals $\sim$9$\times$ number pixels in single Keck receiver, thus further advancing program's mapping speed. was deployed during austral summer...