activity
20162026
most citedBICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season

967 citations · 1.7k across the 13 of their papers we have counts for

collaborators

16 papers

astro-ph.IM2026

Status of BICEP Array and Integration of the 220/270 GHz Receiver

A. Steiger, P. A. R. Ade, Z. Ahmed +83

Measurements of the polarization of the cosmic microwave background are critical for modern cosmology as they constrain the physics of the early universe and cosmic inflation. BICE…

astro-ph.IM2024

BICEP/Keck XIX: Extremely Thin Composite Polymer Vacuum Windows for BICEP and Other High Throughput Millimeter Wave Telescopes

Keck Collaboration, P. A. R. Ade, Z. Ahmed +90

Millimeter-wave refracting telescopes targeting the degree-scale structure of the cosmic microwave background (CMB) have recently grown to diffraction-limited apertures of over 0.5…

astro-ph.IM2024

Development of the 220/270 GHz Receiver of BICEP Array

Keck Collaboration, Y. Nakato, P. A. R. Ade +82

Measurements of B-mode polarization in the CMB sourced from primordial gravitational waves would provide information on the energy scale of inflation and its potential form. To ach…

astro-ph.CO2024

Constraining Inflation with the BICEP/Keck CMB Polarization Experiments

Keck Collaboration, P. A. R. Ade, Z. Ahmed +84

The BICEP/ (BK) series of cosmic microwave background (CMB) polarization experiments has, over the past decade and a half, produced a series of field-leading constra…

astro-ph.CO2022★ 36 cited

BICEP / Keck XVII: Line of Sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors

Keck Collaboration, P. A. R. Ade, Z. Ahmed +91

We present estimates of line-of-sight distortion fields derived from the 95 GHz and 150 GHz data taken by BICEP2, BICEP3, and Keck Array up to the 2018 observing season, leading to…

astro-ph.GA2022★ 20 cited

BICEP / Keck XVI: Characterizing Dust Polarization through Correlations with Neutral Hydrogen

Keck Collaboration, P. A. R. Ade, Z. Ahmed +92

We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H I) observations. Dust polarization is imp…

astro-ph.IM2022

2022 Upgrade and Improved Low Frequency Camera Sensitivity for CMB Observation at the South Pole

A. Soliman, P. A. R. Ade, Z. Ahmed +83

Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measur…

astro-ph.CO2021★ 967 cited

BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season

Keck Collaboration, P. A. R. Ade, Z. Ahmed +89

We present results from an analysis of all data taken by the BICEP2, Keck Array and BICEP3 CMB polarization experiments up to and including the 2018 observing season. We add additi…

astro-ph.IM2021★ 2 cited

BICEP / Keck XV: The BICEP3 CMB Polarimeter and the First Three Year Data Set

Keck Collaboration, P. A. R. Ade, Z. Ahmed +89

We report on the design and performance of the BICEP3 instrument and its first three-year data set collected from 2016 to 2018. BICEP3 is a 52cm aperture, refracting telescope desi…

astro-ph.CO2021★ 27 cited

BICEP / Keck XIV: Improved constraints on axion-like polarization oscillations in the cosmic microwave background

Keck Collaboration, P. A. R. Ade, Z. Ahmed +89

We present an improved search for axion-like polarization oscillations in the cosmic microwave background (CMB) with observations from the Keck Array. An all-sky, temporally sinuso…

astro-ph.CO2020★ 47 cited

A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing

BICEP/Keck, SPTpol Collaborations, : +139

We present a constraint on the tensor-to-scalar ratio, , derived from measurements of cosmic microwave background (CMB) polarization -modes with "delensing," whereby the unce…

astro-ph.CO2018★ 492 cited

BICEP2 / Keck Array x: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season

Keck Array, BICEP2 Collaborations, : +78

We present results from an analysis of all data taken by the BICEP2/Keck CMB polarization experiments up to and including the 2015 observing season. This includes the first Keck Ar…

astro-ph.IM2018★ 1 cited

Ultra-Thin Large-Aperture Vacuum Windows for Millimeter Wavelengths Receivers

Denis Barkats, Marion I. Dierickx, John M. Kovac +75

Targeting faint polarization patterns arising from Primordial Gravitational Waves in the Cosmic Microwave Background requires excellent observational sensitivity. Optical elements…

astro-ph.IM2018★ 26 cited

2017 upgrade and performance of BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization

Jae Hwan Kang, P. A. R. Ade, Z. Ahmed +74

BICEP3 is a 520mm aperture on-axis refracting telescope observing the polarization of the cosmic microwave background (CMB) at 95GHz in search of the B-mode signal originating from…

astro-ph.CO2018★ 10 cited

Measurements of Degree-Scale B-mode Polarization with the BICEP/Keck Experiments at South Pole

Keck Collaboration, P. A. R. Ade, Z. Ahmed +76

The BICEP and Keck Array experiments are a suite of small-aperture refracting telescopes observing the microwave sky from the South Pole. They target the degree-scale B-mode polari…

astro-ph.IM2016★ 30 cited

Brute-Force Mapmaking with Compact Interferometers: A MITEoR Northern Sky Map from 128 MHz to 175 MHz

H. Zheng, M. Tegmark, J. Dillon +24

We present a new method for interferometric imaging that is ideal for the large fields of view and compact arrays common in 21 cm cosmology. We first demonstrate the method with si…