Search Results - "Wollack, E. J"
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Characterization of the Mid-Frequency Arrays for Advanced ACTPol
Published in Journal of low temperature physics (01-11-2018)“…The Advanced ACTPol upgrade on the Atacama Cosmology Telescope aims to improve the measurement of the cosmic microwave background anisotropies and…”
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The Design of the CCAT-prime Epoch of Reionization Spectrometer Instrument
Published in Journal of low temperature physics (01-05-2020)“…The epoch of reionization spectrometer (EoR-Spec) is an instrument module for the Prime-Cam receiver of the 6-m aperture CCAT-prime Telescope at 5600 m in…”
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Second-Generation Design of Micro-Spec: A Medium-Resolution, Submillimeter-Wavelength Spectrometer-on-a-Chip
Published in Journal of low temperature physics (01-12-2018)“…Micro-Spec (μ-Spec) is a direct-detection spectrometer which integrates all the components of a diffraction-grating spectrometer onto a ∼10-cm2 chip through…”
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Pushing the Limits of Broadband and High-Frequency Metamaterial Silicon Antireflection Coatings
Published in Journal of low temperature physics (01-12-2018)“…Broadband refractive optics realized from high-index materials provide compelling design solutions for the next generation of observatories for the cosmic…”
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Toward Large Field-Of-View High-Resolution X-Ray Imaging Spectrometers: Microwave Multiplexed Readout of 28 TES Microcalorimeters
Published in Journal of low temperature physics (01-11-2018)“…We performed small-scale demonstrations at GSFC of high-resolution Xray TES microcalorimeters read out using a microwave SQUID multiplexer. This work is part…”
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Multiwavelength Characterization of an ACT-selected, Lensed Dusty Star-forming Galaxy at z = 2.64
Published in The Astrophysical journal (01-08-2017)“…We present C i(2-1) and multi-transition 12CO observations of a dusty star-forming galaxy, ACT J2029+0120, which we spectroscopically confirm to lie at z =…”
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Specific heat of epoxies and mixtures containing silica, carbon lamp black, and graphite
Published in Cryogenics (Guildford) (01-09-2021)“…•Specific heat of several epoxies and mixtures is presented in the 2–20 K range.•The data includes the specific heat of EPO-TEK 377 and EPO-TEK 377H.•The…”
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Characterization of Si Membrane TES Bolometer Arrays for the HIRMES Instrument
Published in Journal of low temperature physics (01-11-2018)“…The high-resolution mid-infrared spectrometer instrument will fly onboard the National Aeronautics and Space Administration’s airborne stratospheric…”
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Robust modeling of acoustic phonon transmission in nanomechanical structures
Published in Applied physics letters (18-03-2019)“…The transmission of acoustic phonons is an important element in the design and performance of nano-mechanical devices operating in the mesoscopic limit…”
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A Measurement of the Angular Power Spectrum of the Anisotropy in the Cosmic Microwave Background
Published in The Astrophysical journal (01-01-1997)Get full text
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The Cosmic Microwave Background Temperature and Galactic Emission at 8.0 and 8.3 GHz
Published in The Astrophysical journal (20-12-2006)“…We report balloon-borne measurements at 8.0 and 8.3 GHz of Galactic emission and of the radiometric temperature of the cosmic microwave background, the results…”
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MERGHERS pilot: MeerKAT discovery of diffuse emission in nine massive Sunyaev–Zel’dovich-selected galaxy clusters from ACT
Published in Monthly notices of the Royal Astronomical Society (01-06-2021)“…ABSTRACT The MeerKAT Exploration of Relics, Giant Halos, and Extragalactic Radio Sources (MERGHERS) survey is a planned project to study a large statistical…”
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A deep/wide 1–2 GHz snapshot survey of SDSS Stripe 82 using the Karl G. Jansky Very Large Array in a compact hybrid configuration
Published in Monthly notices of the Royal Astronomical Society (21-08-2016)“…We have used the Karl G. Jansky Very Large Array to image ∼100 deg2 of SDSS Stripe 82 at 1–2 GHz. The survey consists of 1026 snapshot observations of 2.5 min…”
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RECOVERY OF LARGE ANGULAR SCALE CMB POLARIZATION FOR INSTRUMENTS EMPLOYING VARIABLE-DELAY POLARIZATION MODULATORS
Published in The Astrophysical journal (20-02-2016)“…ABSTRACT Variable-delay Polarization Modulators (VPMs) are currently being implemented in experiments designed to measure the polarization of the cosmic…”
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On the redshift distribution and physical properties of ACT-selected DSFGs
Published in Monthly notices of the Royal Astronomical Society (01-01-2017)“…We present multi-wavelength detections of nine candidate gravitationally-lensed dusty star-forming galaxies (DSFGs) selected at 218GHz (1.4mm) from the ACT…”
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The Experiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM)
Published in Journal of low temperature physics (01-05-2020)“…The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a cryogenic balloon-borne instrument that will survey galaxy and star formation…”
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Advanced ACTPol Multichroic Polarimeter Array Fabrication Process for 150 mm Wafers
Published in Journal of low temperature physics (01-08-2016)“…Advanced ACTPol (AdvACT) is a third-generation cosmic microwave background receiver to be deployed in 2016 on the Atacama Cosmology Telescope (ACT). Spanning…”
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Passivation of aluminum mirrors with SF6- or NF3-based plasmas
Published in Optical materials express (01-11-2023)“…This research compares the use of NF3 and SF6 process gases for the removal of the native oxide from Al mirrors and their subsequent fluorination using…”
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A giant radio halo in a low-mass SZ-selected galaxy cluster: ACT-CL J0256.5+0006
Published in Monthly notices of the Royal Astronomical Society (11-07-2016)“…We present the detection of a giant radio halo (GRH) in the Sunyaev–Zel'dovich (SZ)-selected merging galaxy cluster ACT-CL J0256.5+0006 (z = 0.363), observed…”
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Electromagnetic Design of a Magnetically Coupled Spatial Power Combiner
Published in Journal of low temperature physics (01-12-2018)“…The design of a two-dimensional spatial beam-combining network employing a parallel-plate superconducting waveguide filled with a monocrystalline silicon…”
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