Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: Jason Poh, Ashwin Samudre, Aleksandra Ćiprijanović, Brian Nord, Gourav Khullar | Summary: Current ground-based cosmological surveys, such as the Dark Energy Survey (DES), are predicted to discover thousands of galaxy-scale strong lenses, while future surveys, such as the Vera Rubin Observatory Legacy Survey of Space and […]


Continue.. Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: Jason Poh, Ashwin Samudre, Aleksandra Ćiprijanović, Brian Nord, Gourav Khullar | Summary: Current ground-based cosmological surveys, such as the Dark Energy Survey (DES), are predicted to discover thousands of galaxy-scale strong lenses, while future surveys, such as the Vera Rubin Observatory Legacy Survey of Space and […]


Continue.. Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Kavli Affiliate: Joshua A. Frieman | First 5 Authors: Jason Poh, Ashwin Samudre, Aleksandra Ćiprijanović, Brian Nord, Gourav Khullar | Summary: Current ground-based cosmological surveys, such as the Dark Energy Survey (DES), are predicted to discover thousands of galaxy-scale strong lenses, while future surveys, such as the Vera Rubin Observatory Legacy Survey of Space and […]


Continue.. Strong Lensing Parameter Estimation on Ground-Based Imaging Data Using Simulation-Based Inference

Mirror Dark Sector Solution of the Hubble Tension with Time-varying Fine-structure Constant

Kavli Affiliate: Joshua Frieman | First 5 Authors: John Zhang, Joshua Frieman, , , | Summary: We explore a model introduced by Cyr-Racine, Ge, and Knox (arXiv:2107.13000(2)) that resolves the Hubble tension by invoking a “mirror world" dark sector with energy density a fixed fraction of the “ordinary" sector of Lambda-CDM. Although it reconciles cosmic […]


Continue.. Mirror Dark Sector Solution of the Hubble Tension with Time-varying Fine-structure Constant

Mass-Metallicity Relation during the Epoch of Reionization in the CROC Simulations

Kavli Affiliate: Nickolay Gnedin | First 5 Authors: Isaac Noel, Hanjue Zhu, Nickolay Gnedin, , | Summary: The low-redshift mass-metallicity relation (MZR) is well studied, but the high-redshift MZR remains difficult to observe. To study the early MZR further, we analyze the Cosmic Reionization on Computers (CROC) simulations with a focus on the MZR from […]


Continue.. Mass-Metallicity Relation during the Epoch of Reionization in the CROC Simulations

Ion-beam Assisted Sputtering of Titanium Nitride Thin Films

Kavli Affiliate: Clarence Chang | First 5 Authors: Timothy Draher, Tomas Polakovic, Juliang Li, Yi Li, Ulrich Welp | Summary: Titanium nitride is a material of interest for many superconducting devices such as nanowire microwave resonators and photon detectors. Thus, controlling the growth of TiN thin films with desirable properties is of high importance. In […]


Continue.. Ion-beam Assisted Sputtering of Titanium Nitride Thin Films

Ion-beam Assisted Sputtering of Titanium Nitride Thin Films

Kavli Affiliate: Clarence Chang | First 5 Authors: Timothy Draher, Tomas Polakovic, Juliang Li, Yi Li, Ulrich Welp | Summary: Titanium nitride is a material of interest for many superconducting devices such as nanowire microwave resonators and photon detectors. Thus, controlling the growth of TiN thin films with desirable properties is of high importance. In […]


Continue.. Ion-beam Assisted Sputtering of Titanium Nitride Thin Films

The connection between galactic outflows and the escape of ionizing photons

Kavli Affiliate: Michael D. Gladders | First 5 Authors: Ramesh Mainali, Jane R. Rigby, John Chisholm, Matthew Bayliss, Rongmon Bordoloi | Summary: We analyze spectra of a gravitationally lensed galaxy, known as the Sunburst Arc, that is leaking ionizing photons, also known as the Lyman continuum (LyC). Magnification from gravitational lensing permits the galaxy to […]


Continue.. The connection between galactic outflows and the escape of ionizing photons

Breaking Bad Degeneracies with Love: Improving gravitational-wave measurements through universal relations

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Yiqi Xie, Deep Chatterjee, Gilbert Holder, Daniel E. Holz, Scott Perkins | Summary: The distance-inclination degeneracy limits gravitational-wave parameter estimation of compact binary mergers. Although the degeneracy can be partially broken by including higher-order modes or precession, these effects are suppressed in binary neutron stars. In […]


Continue.. Breaking Bad Degeneracies with Love: Improving gravitational-wave measurements through universal relations

Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernova in the LSST Era

Kavli Affiliate: Richard Kessler | First 5 Authors: Ayan Mitra, Richard Kessler, Surhud More, Renee Hlozek, | Summary: We perform a rigorous cosmology analysis on simulated type Ia supernovae (SN~Ia) and evaluate the improvement from including photometric host-galaxy redshifts compared to using only the "zspec" subset with spectroscopic redshifts from the host or SN. We […]


Continue.. Using Host Galaxy Photometric Redshifts to Improve Cosmological Constraints with Type Ia Supernova in the LSST Era