Removing the fat from your posterior samples with margarine

Kavli Affiliate: George Efstathiou | First 5 Authors: Harry T. J. Bevins, William J. Handley, Pablo Lemos, Peter H. Sims, Eloy de Lera Acedo | Summary: Bayesian analysis has become an indispensable tool across many different cosmological fields including the study of gravitational waves, the Cosmic Microwave Background and the 21-cm signal from the Cosmic […]


Continue.. Removing the fat from your posterior samples with margarine

Marginal Post Processing of Bayesian Inference Products with Normalizing Flows and Kernel Density Estimators

Kavli Affiliate: George Efstathiou | First 5 Authors: Harry T. J. Bevins, William J. Handley, Pablo Lemos, Peter H. Sims, Eloy de Lera Acedo | Summary: Bayesian analysis has become an indispensable tool across many different cosmological fields including the study of gravitational waves, the Cosmic Microwave Background and the 21-cm signal from the Cosmic […]


Continue.. Marginal Post Processing of Bayesian Inference Products with Normalizing Flows and Kernel Density Estimators

Gravity as a gapless phase and biform symmetries

Kavli Affiliate: Austin Joyce | First 5 Authors: Kurt Hinterbichler, Diego M. Hofman, Austin Joyce, GrĂ©goire Mathys, | Summary: We study effective field theories (EFTs) enjoying (maximal) biform symmetries. These are defined by the presence of a conserved (electric) current that has the symmetries of a Young tableau with two columns of equal length. When […]


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Sunyaev-Zel’dovich effect and X-ray scaling relations of galaxies, groups and clusters in the IllustrisTNG simulations

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Ana-Roxana Pop, Lars Hernquist, Daisuke Nagai, Rahul Kannan, Rainer Weinberger | Summary: Observable thermodynamical properties of the intracluster medium (ICM) reflect the complex interplay between AGN feedback and the gravitational collapse of haloes. Using the large volume TNG300 simulation of the IllustrisTNG project we provide predictions for […]


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MgII in the JWST Era: a Probe of Lyman Continuum Escape?

Kavli Affiliate: Martin Haehnelt | First 5 Authors: Harley Katz, Thibault Garel, Joakim Rosdahl, Valentin Mauerhofer, Taysun Kimm | Summary: Limited constraints on the evolution of the Lyman Continuum (LyC) escape fraction represent one of the primary uncertainties in the theoretical determination of the reionization history. Due to the intervening intergalactic medium (IGM), the possibility […]


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A Taxonomy for the Configurations of Quadruply Lensed Quasars

Kavli Affiliate: Paul L. Schechter | First 5 Authors: Paul L. Schechter, , , , | Summary: A simple, novice-friendly scheme for classifying the image configurations of quadruply lensed quasars is proposed. With only six classes, it is intentionally coarse-grained. Readers are invited to test drive the scheme on a sample of 12 quadruply lensed […]


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A Taxonomy for the Configurations of Quadruply Lensed Quasars

Kavli Affiliate: Paul L. Schechter | First 5 Authors: Paul L. Schechter, , , , | Summary: A simple, novice-friendly scheme for classifying the image configurations of quadruply lensed quasars is proposed. With only six classes, it is intentionally coarse-grained. It focuses on the kitelikeness and circularity of these configurations, or the absence thereof. Other […]


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The Astrophysical Distance Scale: V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Abigail J. Lee, Laurie Rousseau-Nepton, Wendy L. Freedman, Barry F. Madore, Maria-Rosa L. Cioni | Summary: The J-region asymptotic giant branch (JAGB) method is a new standard candle that is based on the stable intrinsic J-band magnitude of color-selected carbon stars, and has a precision comparable […]


Continue.. The Astrophysical Distance Scale: V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law

The Astrophysical Distance Scale: V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Abigail J. Lee, Laurie Rousseau-Nepton, Wendy L. Freedman, Barry F. Madore, Maria-Rosa L. Cioni | Summary: The J-region asymptotic giant branch (JAGB) method is a new standard candle that is based on the stable intrinsic J-band magnitude of color-selected carbon stars, and has a precision comparable […]


Continue.. The Astrophysical Distance Scale: V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law

Split personalities in Bayesian Neural Networks: the case for full marginalisation

Kavli Affiliate: Anthony Lasenby | First 5 Authors: David Yallup, Will Handley, Mike Hobson, Anthony Lasenby, Pablo Lemos | Summary: The true posterior distribution of a Bayesian neural network is massively multimodal. Whilst most of these modes are functionally equivalent, we demonstrate that there remains a level of real multimodality that manifests in even the […]


Continue.. Split personalities in Bayesian Neural Networks: the case for full marginalisation