SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: E. Camphuis, W. Quan, L. Balkenhol, A. R. Khalife, F. Ge | Summary: We present measurements of the temperature and E-mode polarization angular power spectra of the cosmic microwave background (CMB) from observations of 4% of the sky with SPT-3G, the current camera on the South Pole […]


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Cosmic-ray and Interstellar Gas Properties in the Solar Neighborhood Revealed by Diffuse Gamma Rays

Kavli Affiliate: Igor V. Moskalenko | First 5 Authors: Tsunefumi Mizuno, Katsuhiro Hayashi, Hinako Ochi, Igor V. Moskalenko, Elena Orlando | Summary: To investigate the interstellar medium (ISM) and Galactic cosmic rays (CRs) in the solar neighborhood, we analyzed ${gamma}$-ray data by Fermi Large Area Telescope (LAT) for five nearby molecular cloud regions. Our data […]


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Background Measurements and Simulations of the ComPair Balloon Flight

Kavli Affiliate: Sven Herrmann | First 5 Authors: Zachary Metzler, Nicholas Kirschner, Lucas Smith, Nicholas Cannady, Makoto Sasaki | Summary: ComPair, a prototype of the All-sky Medium Energy Gamma-ray Observatory (AMEGO), completed a short-duration high-altitude balloon campaign on August 27, 2023 from Fort Sumner, New Mexico, USA. The goal of the balloon flight was the […]


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Correcting impedance measurements for background parasitics to characterize circuit components in cryogenic environments

Kavli Affiliate: Noah A. Kurinsky | First 5 Authors: Riley J. Carpenter, Jadyn Anczarski, Ivar Rydstrom, Aviv Simchony, Zoe J. Smith | Summary: Predictable circuit response is a critical prerequisite for accurate electronic measurements. We describe a powerful, yet straightforward, experimental method and analysis model that utilizes an affordable LCR meter in conjunction with an […]


Continue.. Correcting impedance measurements for background parasitics to characterize circuit components in cryogenic environments

Mitigating Polarization Leakage in Gas Pixel Detectors through Hybrid Machine Learning and Analytic Event Reconstruction

Kavli Affiliate: Nicola Omodei | First 5 Authors: Nicoló Cibrario, Michela Negro, Raffaella Bonino, Nikita Moriakov, Luca Baldini | Summary: Spatially resolved polarization measurements of extended X-ray sources are expanding our understanding of the emission mechanisms and magnetic field properties involved. Such measurements have been possible in the past few years thanks to the Imaging […]


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The Atacama Cosmology Telescope: DR6 Power Spectrum Foreground Model and Validation

Kavli Affiliate: Susan E. Clark | First 5 Authors: Benjamin Beringue, Kristen M. Surrao, J. Colin Hill, Zachary Atkins, Nicholas Battaglia | Summary: We discuss the model of astrophysical emission at millimeter wavelengths used to characterize foregrounds in the multi-frequency power spectra of the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6), expanding on Louis […]


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The QPO in REJ1034+396 originates in the hot corona

Kavli Affiliate: Steven Allen | First 5 Authors: Chloe Taylor, Daniel Wilkins, Steven Allen, , | Summary: REJ1034+396 is one of the few active galactic nuclei with a significant quasi-periodic oscillation (QPO). The QPO has been observed in over 1 Ms of XMM-Newton observations spanning over a decade. We investigate the power spectral density function […]


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The Roman View of Strong Gravitational Lenses

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Bryce Wedig, Tansu Daylan, Simon Birrer, Francis-Yan Cyr-Racine, Cora Dvorkin | Summary: Galaxy-galaxy strong gravitational lenses can constrain dark matter models and the Lambda Cold Dark Matter cosmological paradigm at sub-galactic scales. Currently, there is a dearth of images of these rare systems with high signal-to-noise […]


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Revisiting Isocurvature Bounds on the Minimal QCD Axion

Kavli Affiliate: Peter W. Graham | First 5 Authors: Peter W. Graham, Davide Racco, , , | Summary: The QCD axion has important connections to early universe cosmology. For example, it is often said that isocurvature limits rule out a combination of high axion decay constant, $f_a$, and high inflationary Hubble scale, $H_I$. High scales […]


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Quantum Random Number Generator (QRNG): Theoretical and Experimental Investigations

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Zeshan Haider, Muhammad Haroon Saeed, Muhammad Ehsan-ul-Haq Zaheer, Zeeshan Ahmed Alvi, Muhammad Ilyas | Summary: Quantum Random Number Generators (QRNGs) emerged as a promising solution for generating truly random numbers. In the present article, we give an overview of QRNGs highlighting the merits and demerits of various […]


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