Search Results - "R. Keskitalo"
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Cosmic Birefringence from the Planck Data Release 4
Published in Physical review letters (04-03-2022)“…We search for the signature of parity-violating physics in the cosmic microwave background, called cosmic birefringence, using the Planck data release 4. We…”
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A Measurement of the Degree-scale CMB B-mode Angular Power Spectrum with Polarbear
Published in The Astrophysical journal (01-07-2020)“…We present a measurement of the B-mode polarization power spectrum of the cosmic microwave background (CMB) using data taken from 2014 July to 2016 December…”
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Measurement of the cosmic microwave background polarization lensing power spectrum with the POLARBEAR experiment
Published in Physical review letters (11-07-2014)“…Gravitational lensing due to the large-scale distribution of matter in the cosmos distorts the primordial cosmic microwave background (CMB) and thereby induces…”
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Evidence for gravitational lensing of the cosmic microwave background polarization from cross-correlation with the cosmic infrared background
Published in Physical review letters (04-04-2014)“…We reconstruct the gravitational lensing convergence signal from cosmic microwave background (CMB) polarization data taken by the Polarbear experiment and…”
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Measurements of Tropospheric Ice Clouds with a Ground-based CMB Polarization Experiment, POLARBEAR
Published in The Astrophysical journal (10-01-2019)“…The polarization of the atmosphere has been a long-standing concern for ground-based experiments targeting cosmic microwave background (CMB) polarization. Ice…”
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Deployment of Polarbear-2A
Published in Journal of low temperature physics (01-05-2020)“…Polarbear -2A is the first of three receivers in the Simons array, a cosmic microwave background experiment located on the Atacama Plateau in Chile. Polarbear…”
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From BeyondPlanck to Cosmoglobe: Open Science, Reproducibility, and Data Longevity
Published in The open journal of astrophysics (2023)“…The BeyondPlanck and Cosmoglobe collaborations have implemented the first integrated Bayesian end-to-end analysis pipeline for CMB experiments. The primary…”
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The POLARBEAR-2 Experiment
Published in Journal of low temperature physics (01-09-2014)“…We present an overview of the design and development of the POLARBEAR-2 experiment. The POLARBEAR-2 experiment is a cosmic microwave background polarimetry…”
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The POLARBEAR Cosmic Microwave Background Polarization Experiment
Published in Journal of low temperature physics (01-09-2014)“…The polarbear cosmic microwave background (CMB) polarization experiment has been observing since early 2012 from its 5,200 m site in the Atacama Desert in…”
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LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection
Published in Journal of low temperature physics (01-03-2019)“…LiteBIRD is a candidate satellite for a strategic large mission of JAXA. With its expected launch in the middle of the 2020s with a H3 rocket, LiteBIRD plans…”
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A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data
Published in The Astrophysical journal (20-10-2017)“…We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new…”
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A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND B -MODE POLARIZATION POWER SPECTRUM AT SUB-DEGREE SCALES WITH POLARBEAR
Published in The Astrophysical journal (20-10-2014)“…We report a measurement of the B mode polarization power spectmm in the cosmic microwave background (CMB) using the Polarbear experiment in Chile. The faint B…”
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13
The Polarbear-2 and the Simons Array Experiments
Published in Journal of low temperature physics (01-08-2016)“…We present an overview of the design and status of the Polarbear -2 and the Simons Array experiments. Polarbear -2 is a cosmic microwave background polarimetry…”
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The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status
Published in Journal of low temperature physics (01-12-2018)“…We present on the status of POLARBEAR-2 A (PB2-A) focal plane fabrication. The PB2-A is the first of three telescopes in the Simons Array, which is an array of…”
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A Measurement of the Degree-scale CMB B-mode Angular Power Spectrum with Polarbear
Published in The Astrophysical journal (01-07-2020)Get full text
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Optical Characterization of OMT-Coupled TES Bolometers for LiteBIRD
Published in Journal of low temperature physics (01-11-2022)“…Feedhorn- and orthomode transducer- (OMT) coupled transition edge sensor (TES) bolometers have been designed and micro-fabricated to meet the optical…”
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From BeyondPlanck to Cosmoglobe: Open Science, Reproducibility, and Data Longevity
Published in The open journal of astrophysics (01-03-2023)Get full text
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Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey
Published in Progress of theoretical and experimental physics (21-11-2022)“…LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for…”
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Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD
Published in Journal of low temperature physics (01-12-2018)“…The high-frequency telescope for LiteBIRD is designed with refractive and reflective optics. In order to improve sensitivity, this paper suggests the new…”
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MODELING ATMOSPHERIC EMISSION FOR CMB GROUND-BASED OBSERVATIONS
Published in The Astrophysical journal (10-08-2015)“…ABSTRACT Atmosphere is one of the most important noise sources for ground-based cosmic microwave background (CMB) experiments. By increasing optical loading on…”
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