Innovative SiC ultraviolet instrumentation development with potential applications for the Habitable Worlds Observatory

Kavli Affiliate: Daniel R. Wilkins| First 5 Authors: Prabal Saxena, Prabal Saxena, , , | Summary:In this paper, we detail recent and current work that is being carried out to fabricate and advance novel SiC UV instrumentation that is aimed at enabling more sensitive measurements across numerous disciplines, with a short discussion of the promise […]


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3D Radiative MHD Simulations of Starspots II: Large-scale Structure

Kavli Affiliate: Robert Cameron | Summary:We compute realistic 3D radiative MHD near-surface models of starspots with substantial penumbrae on cool main-sequence stars using the MURaM simulation code. This work is an improvement on the the previous starspot models in a slab geometry. The umbra, penumbra and the quiet star for all starspots are distinct, not […]


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Search for new interactions at the micron scale with a vector force sensor

Kavli Affiliate: Giorgio Gratta | Summary:The search for new gravity-like interactions at the sub-millimeter scale is a compelling area of research, with important implications for the understanding of classical gravity and its connections with quantum physics. We report improved constraints on Yukawa-type interactions in the $10,mathrmμm$ regime using optically levitated dielectric microspheres as test masses. […]


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Optomechanical vector sensing of new forces at 6 micron separation

Kavli Affiliate: Giorgio Gratta | Summary:The search for new gravity-like interactions at the sub-millimeter scale is a compelling area of research, with important implications for the understanding of classical gravity and its connections with quantum physics. We report improved constraints on Yukawa-type interactions in the $10,mathrmμm$ regime using optically levitated dielectric microspheres as test masses. […]


Continue.. Optomechanical vector sensing of new forces at 6 micron separation

Using Felis to Represent the Semantics and Metadata of Astronomical Data Catalogs

Kavli Affiliate: Brian Van Klaveren | Summary:The Data Management team of the Vera C. Rubin Observatory has developed a data description language and toolset, Felis, for defining the semantics and metadata of its public-facing data catalogs. Felis uses a rich Pydantic data model for describing and validating catalog metadata, expressed as a human-readable and editable […]


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How do uncertainties in galaxy formation physics impact field-level galaxy bias?

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Mahlet Shiferaw, Nickolas Kokron, Risa H. Wechsler, , | Summary: Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy-dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation. To quantify these […]


Continue.. How do uncertainties in galaxy formation physics impact field-level galaxy bias?

How do uncertainties in galaxy formation physics impact field-level galaxy bias?

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: , , , , | Summary: Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy-dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation. To quantify these uncertainties, we examine quenched […]


Continue.. How do uncertainties in galaxy formation physics impact field-level galaxy bias?

How do uncertainties in galaxy formation physics impact field-level galaxy bias?

Kavli Affiliate: Risa Wechsler | Summary:Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy-dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation. To quantify these uncertainties, we examine quenched and star-forming galaxies using two distinct approaches to modeling galaxy […]


Continue.. How do uncertainties in galaxy formation physics impact field-level galaxy bias?

Robust Chiral Optical Force via Electric Dipole Interactions, Inspired by a Sea Creature

Kavli Affiliate: Robert Cameron | Summary:Inspired by a sea creature, we identify a robust chiral optical force that can be several orders of magnitude stronger than others proposed to date, pushing the opposite enantiomers of orientated chiral molecules towards regions of orthogonal linear rather than circular polarization in an optical field via electric dipole interactions. […]


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The Simons Observatory: Design, Integration, and Current Status of Small Aperture Telescopes

Kavli Affiliate: Shawn Henderson | Summary:The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment located in the Atacama Desert in Chile at an elevation of 5200 meters, nominally consisting of an array of three 0.42-meter small aperture telescopes (SATs) and one 6-meter large aperture telescope (LAT). SO will make accurate measurements of […]


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