Baibhav Singari
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View article: BICEP/Keck. XVII. Line-of-sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors
BICEP/Keck. XVII. Line-of-sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors Open
We present estimates of line-of-sight distortion fields derived from the 95 and 150 GHz data taken by BICEP2, BICEP3, and the Keck Array up to the 2018 observing season, leading to cosmological constraints and a study of instrumental and a…
View article: BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen
BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen Open
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 important for both our understanding of astrophysical process…
View article: Improved Polarization Calibration of the BICEP3 CMB Polarimeter at the South Pole
Improved Polarization Calibration of the BICEP3 CMB Polarimeter at the South Pole Open
The BICEP3 Polarimeter is a small aperture, refracting telescope, dedicated to the observation of the Cosmic Microwave Background (CMB) at 95GHz. It is designed to target degree angular scale polarization patterns, in particular the very-m…
View article: 2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole
2022 upgrade and improved low frequency camera sensitivity for CMB observation at the South Pole Open
Constraining the Galactic foregrounds with multi-frequency Cosmic Microwave Background (CMB) observations is an essential step towards ultimately reaching the sensitivity to measure primordial gravitational waves (PGWs), the sign of inflat…
View article: The Latest Constraints on Inflationary B-modes from the BICEP/Keck Telescopes
The Latest Constraints on Inflationary B-modes from the BICEP/Keck Telescopes Open
For the past decade, the BICEP/Keck collaboration has been operating a series of telescopes at the Amundsen-Scott South Pole Station measuring degree-scale $B$-mode polarization imprinted in the Cosmic Microwave Background (CMB) by primord…
View article: Plastic Laminate Antireflective Coatings for Millimeter-wave Optics in BICEP Array
Plastic Laminate Antireflective Coatings for Millimeter-wave Optics in BICEP Array Open
The BICEP/Keck series of experiments target the Cosmic Microwave Background at degree-scale resolution from the South Pole. Over the next few years, the "Stage-3" BICEP Array (BA) telescope will improve the program's frequency coverage and…
View article: Detection of WHIM in the <i>Planck</i> data using <i>Stack First</i> approach
Detection of WHIM in the <i>Planck</i> data using <i>Stack First</i> approach Open
We detect the diffuse thermal Sunyaev-Zeldovich (tSZ) effect from the gas\nfilaments between the Luminous Red Galaxy (LRG) pairs using a new approach\nrelying on stacking the individual frequency maps. We apply and demonstrate our\nmethod …