Predicting the CMB temperature

Kavli Affiliate: Michael S. Turner | First 5 Authors: Michael S. Turner, KICP/UChicago, The Kavli Foundation, , | Summary: Big-bang nucleosynthesis (BBN), a pillar of modern cosmology, begins with the trailblazing 1948 paper of Alpher, Bethe and Gamow cite{abc} which proposed nucleosynthesis during an early ($t sim 1 – 1000,$sec), radiation-dominated phase of the Universe […]


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Understanding BBN: the physics and its history

Kavli Affiliate: Michael S. Turner | First 5 Authors: Michael S. Turner, KICP/UChicago, The Kavli Foundation, , | Summary: Big-bang nucleosynthesis (BBN), today a pillar of modern cosmology, began with the trailblazing 1948 paper of Alpher, Bethe and Gamow. In it, they proposed non-equilibrium nuclear processes in the early Universe ($t sim 1000,$sec) and an […]


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Machine learning synthetic spectra for probabilistic redshift estimation: SYTH-Z

Kavli Affiliate: Katrin Heitmann | First 5 Authors: Nesar Ramachandra, Jonás Chaves-Montero, Alex Alarcon, Arindam Fadikar, Salman Habib | Summary: Photometric redshift estimation algorithms are often based on representative data from observational campaigns. Data-driven methods of this type are subject to a number of potential deficiencies, such as sample bias and incompleteness. Motivated by these […]


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Broadband solenoidal haloscope for terahertz axion detection

Kavli Affiliate: Clarence Chang | First 5 Authors: Jesse Liu, Kristin Dona, Gabe Hoshino, Stefan Knirck, Noah Kurinsky | Summary: We introduce the Broadband Reflector Experiment for Axion Detection (BREAD) conceptual design and science program. This haloscope plans to search for bosonic dark matter across the [10$^{-3}$, 1] eV ([0.24, 240] THz) mass range. BREAD […]


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Broadband solenoidal haloscope for terahertz axion detection

Kavli Affiliate: Clarence Chang | First 5 Authors: Jesse Liu, Kristin Dona, Gabe Hoshino, Stefan Knirck, Noah Kurinsky | Summary: We introduce the Broadband Reflector Experiment for Axion Detection (BREAD) conceptual design and science program. This haloscope plans to search for bosonic dark matter across the [10$^{-3}$, 1] eV ([0.24, 240] THz) mass range. BREAD […]


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Cosmological Constraints from Gas Mass Fractions of Massive, Relaxed Galaxy Clusters

Kavli Affiliate: Steven Allen, Lindsey E. Bleem, Bradford Benson, Adam B. Mantz | First 5 Authors: Adam B. Mantz, Steven W. Allen, Rebecca E. A. Canning, Lucie Baumont, Bradford Benson | Summary: We present updated cosmological constraints from measurements of the gas mass fractions ($f_{gas}$) of massive, dynamically relaxed galaxy clusters. Our new data set […]


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Synthesizing Stellar Populations in South Pole Telescope Galaxy Clusters: I. Ages of Quiescent Member Galaxies at 0.3 < z < 1.4

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Gourav Khullar, Matthew B. Bayliss, Michael D. Gladders, Keunho J. Kim, Michael S Calzadilla | Summary: Using stellar population synthesis models to infer star formation histories (SFHs), we analyse photometry and spectroscopy of a large sample of quiescent galaxies which are members of Sunyaev-Zel’dovich (SZ)-selected galaxy […]


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Development of MKIDs for measurement of the Cosmic Microwave Background with the South Pole Telescope

Kavli Affiliate: Erik Shirokoff, Clarence Chang | First 5 Authors: Karia Dibert, Pete Barry, Zhaodi Pan, Adam Anderson, Bradford Benson | Summary: We present details of the design, simulation, and initial test results of prototype detectors for the fourth-generation receiver of the South Pole Telescope (SPT). Optimized for the detection of key secondary anisotropies of […]


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Bridging the Gap: Categorizing Gravitational-Wave Events at the Transition Between Neutron Stars and Black Holes

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Amanda M. Farah, Maya Fishbach, Reed Essick, Daniel E. Holz, Shanika Galaudage | Summary: We search for features in the mass distribution of detected compact binary coalescences which signify the transition between neutron stars and black holes. We analyze all gravitational wave detections by LIGO-Virgo made […]


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Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

Kavli Affiliate: Thomas M. Crawford | First 5 Authors: Michael Janssen, Heino Falcke, Matthias Kadler, Eduardo Ros, Maciek Wielgus | Summary: Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimeter wavelengths have the power to reveal the launching and initial collimation region of extragalactic radio jets, down to $10-100$ gravitational radii ($r_g=GM/c^2$) scales in […]


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