Publications (61)
CMB-S4 Science Case, Reference Design, and Project Plan
Kevork Abazajian, Graeme Addison, Peter Adshead +222
We present the science case, reference design, and project plan for the Stage-4 ground-based cosmic microwave background experiment CMB-S4.
Snowmass 2021 CMB-S4 White Paper
Kevork Abazajian, Arwa Abdulghafour, Graeme E. Addison +353
This Snowmass 2021 White Paper describes the Cosmic Microwave Background Stage 4 project CMB-S4, which is designed to cross critical thresholds in our understanding of the origin a…
Exploring cosmic origins with CORE: gravitational lensing of the CMB
Anthony Challinor, Rupert Allison, Julien Carron +110
Lensing of the CMB is now a well-developed probe of large-scale clustering over a broad range of redshifts. By exploiting the non-Gaussian imprints of lensing in the polarization o…
HAWC+/SOFIA Multiwavelength Polarimetric Observations of OMC-1
David T. Chuss, B-G Andersson, John Bally +35
We report new polarimetric and photometric maps of the massive star-forming region OMC-1 using the HAWC+ instrument on the Stratospheric Observatory for Infrared Astronomy (SOFIA).…
Messengers from the Early Universe: Cosmic Neutrinos and Other Light Relics
Daniel Green, Mustafa A. Amin, Joel Meyers +136
The hot dense environment of the early universe is known to have produced large numbers of baryons, photons, and neutrinos. These extreme conditions may have also produced other lo…
Inflation and Dark Energy from spectroscopy at
Simone Ferraro, Michael J. Wilson, Muntazir Abidi +140
The expansion of the Universe is understood to have accelerated during two epochs: in its very first moments during a period of Inflation and much more recently, at , when D…
STARS: A software application for the EBEX autonomous daytime star cameras
Daniel Chapman, Joy Didier, Shaul Hanany +6
The E and B Experiment (EBEX) is a balloon-borne telescope designed to probe polarization signals in the CMB resulting from primordial gravitational waves, gravitational lensing, a…
Primordial Non-Gaussianity
P. Daniel Meerburg, Daniel Green, Muntazir Abidi +175
Our current understanding of the Universe is established through the pristine measurements of structure in the cosmic microwave background (CMB) and the distribution and shapes of…
Prototype sub-wavelength structure anti-reflection coating on alumina filters for ground-based CMB telescopes
Kosuke Aizawa, Ryosuke Akizawa, Scott Cray +8
We present designs and fabrication of sub-wavelength anti-reflection (AR) structures on alumina for infrared absorptive filters with passbands near 30, 125, and 250 GHz. These band…
Radio sources in next-generation CMB surveys
Gianfranco De Zotti, Matteo Bonato, Mattia Negrello +9
CMB surveys provide, for free, blindly selected samples of extragalactic radio sources at much higher frequencies than traditional radio surveys. Next-generation, ground-based CMB…
Exploring Cosmic Origins with CORE: Inflation
CORE Collaboration, Fabio Finelli, Martin Bucher +129
We forecast the scientific capabilities to improve our understanding of cosmic inflation of CORE, a proposed CMB space satellite submitted in response to the ESA fifth call for a m…
Broadband Millimeter-Wave Anti-Reflection Coatings on Silicon Using Pyramidal Sub-Wavelength Structures
Karl Young, Qi Wen, Shaul Hanany +5
We used two novel approaches to produce sub-wavelength structure (SWS) anti-reflection coatings (ARC) on silicon for the millimeter and sub-millimeter (MSM) wave band: picosecond l…
Analysis of performance of three- and five-stack achromatic half-wave plates at millimeter wavelengths
Tomotake Matsumura, Shaul Hanany, Bradley R. Johnson +2
We study the performance of achromatic half-wave plates (AHWP) as a function of their construction parameters, the detection bandwidth of a power detector operating in the millimet…
Polarization of the Atmosphere as a Foreground for Cosmic Microwave Background Polarization Experiments
Shaul Hanany, Philip Rosenkranz
We quantify the level of polarization of the atmosphere due to Zeeman splitting of oxygen in the Earth's magnetic field and compare it to the level of polarization expected from th…
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…
SOFIA Far Infrared Imaging Polarimetry of M82 and NGC 253: Exploring the Super-Galactic Wind
Terry Jay Jones, C. Darren Dowell, Enrique Lopez Rodriguez +22
We present Far-Infrared polarimetry observations of M82 at 53 and and NGC 253 at , which were taken with HAWC+ in polarimetry mode on the Stratospheric…
Developments of highly-multiplexed, multi-chroic pixels for Balloon-Borne Platforms
François Aubin, Shaul Hanany, Bradley R. Johnson +4
We present our work to develop and characterize low thermal conductance bolometers that are part of sinuous antenna multi-chroic pixels (SAMP). We use longer, thinner and meandered…
Design and characterization of TES bolometers and SQUID readout electronics for a balloon-borne application
Johannes Hubmayr, Francois Aubin, Eric Bissonnette +7
We present measurements of the electrical and thermal properties of new arrays of bolometeric detectors that were fabricated as part of a program to develop bolometers optimized fo…
A high-resolution pointing system for fast scanning platforms: The EBEX example
Joy Didier, Daniel Chapman, Asad Aboobaker +12
The E and B experiment (EBEX) is a balloon-borne telescope designed to measure the polarization of the cosmic microwave background with 8' resolution employing a gondola scanning w…
Foreground Separation and Constraints on Primordial Gravitational Waves with the PICO Space Mission
Ragnhild Aurlien, Mathieu Remazeilles, Sebastian Belkner +13
PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio , a parameter that quantifies the amplitude of inflationary gravity wav…
The far-infrared polarization spectrum of Rho Ophiuchi A from HAWC+/SOFIA observations
Fabio P. Santos, David T. Chuss, C. Darren Dowell +23
We report on polarimetric maps made with HAWC+/SOFIA toward Rho Oph A, the densest portion of the Rho Ophiuchi molecular complex. We employed HAWC+ bands C (89 m) and D (154 $Î…
Maximum Likelihood Foreground Cleaning for Cosmic Microwave Background Polarimeters in the Presence of Systematic Effects
Chaoyun Bao, Carlo Baccigalupi, Ben Gold +3
We extend a general maximum likelihood foreground estimation for cosmic microwave background polarization data to include estimation of instrumental systematic effects. We focus on…
WOMBAT & FORECAST: Making Realistic Maps of the Microwave Sky
Andrew H. Jaffe, Eric Gawiser, Douglas Finkbeiner +11
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave maps which will be more realistic than previous simulations. Our foreground models rep…
Study of the Experimental Probe of Inflationary Cosmology (EPIC)-Intemediate Mission for NASA's Einstein Inflation Probe
James Bock, Abdullah Aljabri, Alex Amblard +35
Measurements of Cosmic Microwave Background (CMB) anisotropy have served as the best experimental probe of the early universe to date. The inflationary paradigm, inspired in part b…
The Case for Probe-class NASA Astrophysics Missions
Martin Elvis, Jon Arenberg, David Ballantyne +45
Astrophysics spans an enormous range of questions on scales from individual planets to the entire cosmos. To address the richness of 21st century astrophysics requires a correspond…
The EBEX Balloon-Borne Experiment - Gondola, Attitude Control, and Control Software
The EBEX Collaboration, Asad Aboobaker, Peter Ade +33
The E and B Experiment (EBEX) was a long-duration balloon-borne instrument designed to measure the polarization of the cosmic microwave background (CMB) radiation. EBEX was the fir…
CMB-S4 Technology Book, First Edition
Maximilian H. Abitbol, Zeeshan Ahmed, Darcy Barron +58
CMB-S4 is a proposed experiment to map the polarization of the Cosmic Microwave Background (CMB) to nearly the cosmic variance limit for angular scales that are accessible from the…
Laser ablated sub-wavelength structure anti-reflection coating on an alumina lens
Shaul Hanany, Scott Cray, Samuel Dietterich +12
We used laser ablation to fabricate sub-wavelength structure anti-reflection coating (SWS-ARC) on a 5 cm diameter alumina lens. With an aspect ratio of 2.5, the SWS-ARC are designe…
The EBEX Cryostat and Supporting Electronics
Ilan Sagiv, Asad M. Aboobaker, Chaoyun Bao +41
We describe the cryostat and supporting electronics for the EBEX experiment. EBEX is a balloon-borne polarimeter designed to measure the B-mode polarization of the cosmic microwave…
Intensity-Coupled-Polarization in Instruments with a Continuously Rotating Half-Wave Plate
Joy Didier, Amber D. Miller, Derek Araujo +31
We discuss a systematic effect associated with measuring polarization with a continuously rotating half-wave plate. The effect was identified with the data from the E and B Experim…
Millimeter-Wave Broadband Anti-Reflection Coatings Using Laser Ablation of Sub-Wavelength Structures
Tomotake Matsumura, Karl Young, Qi Wen +7
We report on the first use of laser ablation to make sub-millimeter, broad-band, anti-reflection coatings (ARC) based on sub-wavelength structures (SWS) on alumina and sapphire. We…
Microwave Spectro-Polarimetry of Matter and Radiation across Space and Time
Jacques Delabrouille, Maximilian H. Abitbol, Nabila Aghanim +77
This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-di…
PICO: Probe of Inflation and Cosmic Origins
Shaul Hanany, Marcelo Alvarez, Emmanuel Artis +79
The Probe of Inflation and Cosmic Origins (PICO) is an imaging polarimeter that will scan the sky for 5 years in 21 frequency bands spread between 21 and 799 GHz. It will produce f…
A Large Diameter Millimeter-Wave Low-Pass Filter Made of Alumina with Laser Ablated Anti-Reflection Coating
Ryota Takaku, Qi Wen, Scott Cray +14
We fabricated a 302 mm diameter low-pass filter made of alumina that has an anti-reflection coating (ARC) made with laser-ablated sub-wavelength structures (SWS). The filter has be…
Observing the Evolution of the Universe
James Aguirre, Alexandre Amblard, Amjad Ashoorioon +172
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the univers…
OLIMPO: a Balloon-Borne SZE Imager to Probe ICM Dynamics and the WHIM
Jack Sayers, Camille Avestruz, Ritoban Basu Thakur +20
OLIMPO is a proposed Antarctic balloon-borne Sunyaev-Zel'dovich effect (SZE) imager to study gas dynamics associated with structure formation along with the properties of the warm-…
The EBEX Balloon Borne Experiment - Optics, Receiver, and Polarimetry
The EBEX Collaboration, Asad M. Aboobaker, Peter Ade +35
The E and B Experiment (EBEX) was a long-duration balloon-borne cosmic microwave background polarimeter that flew over Antarctica in 2013. We describe the experiment's optical syst…
The performance of the bolometer array and readout system during the 2012/2013 flight of the E and B experiment (EBEX)
Kevin MacDermid, Asad M. Aboobaker, Peter Ade +38
EBEX is a balloon-borne telescope designed to measure the polarization of the cosmic microwave background radiation. During its eleven day science flight in the Austral Summer of 2…
Torsional Balloon Flight Line Oscillations: Comparison of Modelling to Flight Data
François Aubin, Benjamin Bayman, Shaul Hanany +4
During the EBEX2013 long duration flight the payload was free to rotate in azimuth. The observed azimuth motion consisted of a superposition of full rotations with a period of 10-3…
A comparison of designs of off-axis Gregorian telescopes for mm-wave large focal plane arrays
Shaul Hanany, Daniel P. Marrone
We compare the diffraction-limited field of view (FOV) provided by four types of off-axis Gregorian telescopes: the classical Gregorian, the aplanatic Gregorian, and designs that c…
Picosecond Laser Ablation of Millimeter-Wave Subwavelength Structures on Alumina and Sapphire
Qi Wen, Elena Fadeeva, Shaul Hanany +4
We use a 1030 nm laser with 7 ps pulse duration and average power up to 100 W to ablate pyramid-shape subwavelength structures (SWS) on alumina and sapphire. The SWS give an effect…
EBEX: A balloon-borne CMB polarization experiment
Britt Reichborn-Kjennerud, Asad M. Aboobaker, Peter Ade +43
EBEX is a NASA-funded balloon-borne experiment designed to measure the polarization of the cosmic microwave background (CMB). Observations will be made using 1432 transition edge s…
Early evolution of galaxies and of large-scale structure from CMB experiments
Gianfranco De Zotti, Matteo Bonato, Mattia Negrello +8
Next generation CMB experiments with arcmin resolution will, for free, lay the foundations for a real breakthrough on the study of the early evolution of galaxies and galaxy cluste…
PICO - the probe of inflation and cosmic origins
Brian Sutin, Marcelo Alvarez, Nicholas Battaglia +31
The Probe of Inflation and Cosmic Origins (PICO) is a NASA-funded study of a Probe-class mission concept. The top-level science objectives are to probe the physics of the Big Bang…
Silicon-based vacuum window for millimeter and submillimeter-wave astrophysics
Ryota Takaku, Scott Cray, Kosuke Aizawa +7
We designed, fabricated, and characterized the properties of a silicon-based vacuum window suitable for millimeter-wave astrophysical applications. The window, which has a diameter…
The WOMBAT Challenge: A "Hounds and Hares" Exercise for Cosmology
Eric Gawiser, Douglas Finkbeiner, Andrew Jaffe +10
The Wavelength-Oriented Microwave Background Analysis Team (WOMBAT) is constructing microwave skymaps which will be more realistic than previous simulations. Our foreground models…
3D Printed Alumina as a Millimeter-Wave Optical Element
Rex Lam, Scott Cray, Sam Dietterich +10
We present millimeter and sub-millimeter room temperature transmission and loss measurements of 3D printed alumina disc and of a disc with one-sided 3D printed sub-wavelength struc…
The Experimental Probe of Inflationary Cosmology (EPIC): A Mission Concept Study for NASA's Einstein Inflation Probe
James Bock, Asantha Cooray, Shaul Hanany +7
This is the Phase 1 Report on the Experimental Probe of Inflationary Cosmology (EPIC), a mission concept study for NASA's Einstein Inflation Probe. When we began our study we sough…
Optical Design of PICO, a Concept for a Space Mission to Probe Inflation and Cosmic Origins
Karl Young, Marcelo Alvarez, Nicholas Battaglia +28
The Probe of Inflation and Cosmic Origins (PICO) is a probe-class mission concept currently under study by NASA. PICO will probe the physics of the Big Bang and the energy scale of…
Software systems for operation, control, and monitoring of the EBEX instrument
Michael Milligan, Peter Ade, François Aubin +35
We present the hardware and software systems implementing autonomous operation, distributed real-time monitoring, and control for the EBEX instrument. EBEX is a NASA-funded balloon…
Energy emanating from the molecular nanomagnet Fe revisited
Tom Leviant, Shaul Hanany, Yuri Myasoedov +1
In the molecular nanomagnet Fe tunneling can occur from a metastable state to an excited state followed by a transition to the ground state. This transition is accompanied by…
HAWC+ Far-Infrared Observations of the Magnetic Field Geometry in M51 and NGC 891
Terry Jay Jones, Jin-Ah Kim, C. Darren Dowell +29
SOFIA HAWC+ polarimetry at $154~\micron$ is reported for the face-on galaxy M51 and the edge-on galaxy NGC 891. For M51, the polarization vectors generally follow the spiral patter…
The EBEX Balloon Borne Experiment - Detectors and Readout
The EBEX Collaboration, Maximilian Abitbol, Asad M. Aboobaker +37
EBEX was a long-duration balloon-borne experiment to measure the polarization of the cosmic microwave background. The experiment had three frequency bands centered at 150, 250, and…
CMB-S4 Decadal Survey APC White Paper
Kevork Abazajian, Graeme Addison, Peter Adshead +222
We provide an overview of the science case, instrument configuration and project plan for the next-generation ground-based cosmic microwave background experiment CMB-S4, for consid…
Probing the origin of our Universe through cosmic microwave background constraints on gravitational waves
Sarah Shandera, Peter Adshead, Mustafa Amin +16
The next generation of instruments designed to measure the polarization of the cosmic microwave background (CMB) will provide a historic opportunity to open the gravitational wave…
Snowmass2021 Cosmic Frontier: Cosmic Microwave Background Measurements White Paper
Clarence L. Chang, Kevin M. Huffenberger, Bradford A. Benson +128
This is a solicited whitepaper for the Snowmass 2021 community planning exercise. The paper focuses on measurements and science with the Cosmic Microwave Background (CMB). The CMB…
Temperature calibration of the E and B experiment
Francois Aubin, Asad M. Aboobaker, Peter Ade +40
The E and B Experiment (EBEX) is a balloon-borne polarimeter designed to measure the polarization of the cosmic microwave background radiation and to characterize the polarization…
Constraints on the Optical Depth to Reionization from Balloon-Borne CMB Measurements
Josquin Errard, Mathieu Remazeilles, Jonathan Aumont +5
We assess the uncertainty with which a balloon-borne experiment, nominally called Tau Surveyor (), can measure the optical depth to reionization with given realistic…
Exploring Cosmic Origins with CORE: Cosmological Parameters
Eleonora Di Valentino, Thejs Brinckmann, Martina Gerbino +125
We forecast the main cosmological parameter constraints achievable with the CORE space mission which is dedicated to mapping the polarisation of the Cosmic Microwave Background (CM…
Recent Results from the MAXIMA Experiment
Andrew H. Jaffe, Matthew Abroe, Julian Borrill +14
MAXIMA is a balloon-borne platform for measuring the anisotropy of the Cosmic Microwave Background (CMB). It has measured the CMB power spectrum with a ten-arcminute FWHM beam, cor…
Trajectories of long duration balloons launched from McMurdo Station in Antarctica
Christopher Geach, Shaul Hanany, Chiou Yang Tan +1
The Columbia Scientific Ballooning Facility operates stratospheric balloon flights out of McMurdo Station in Antarctica. We use balloon trajectory data from 40 flights between 1991…