Kavli Affiliate: George Efstathiou | Summary:Analyses of cosmic shear typically condense weak lensing information over a range of scales to a single cosmological parameter, $S_8$. This paper presents a method to extract more information from Stage-IV cosmic shear measurements by directly reconstructing the matter power spectrum from linear to non-linear scales. We demonstrate that cosmic […]
Kavli Affiliate: E. P. S. Shellard | Summary:In this paper, we present the first comprehensive CMB data analysis of cosmological collider physics. New heavy particles during inflation can leave imprints in the primordial correlators which are observable in today’s cosmological surveys. This remarkable detection channel provides an unsurpassed opportunity to probe new physics at extremely […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Sandro Tacchella, William McClymont, Jan Scholtz, Roberto Maiolino, Xihan Ji | Summary: Understanding the sources that power nebular emission in high-redshift galaxies is fundamentally important not only for shedding light onto the drivers of reionisation, but to constrain stellar populations and the growth of black holes. Here […]
Kavli Affiliate: E. P. S. Shellard | Summary:We continue our studies of the evolution and cosmological consequences of current-carrying cosmic string networks, described by a charge-velocity-dependent one scale (CVOS) model. We present a detailed calculation of the effects of these networks on the cosmic microwave background (CMB), in the context of this model, and specifically […]
Kavli Affiliate: Kaisey Mandel | Summary:We introduce the Hawai’i Supernova Flows project and present summary statistics of the first 1,217 astronomical transients observed, 668 of which are spectroscopically classified Type Ia Supernovae (SNe Ia). Our project is designed to obtain systematics-limited distances to SNe Ia while consuming minimal dedicated observational resources. To date, we have […]
Kavli Affiliate: E. P. S. Shellard | Summary:We provide a formulation of Stochastic Inflation in full general relativity that goes beyond the slow-roll and separate universe approximations. We show how gauge invariant Langevin source terms can be obtained for the complete set of Einstein equations in their ADM formulation by providing a recipe for coarse-graining […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Zhiyuan Ji, Christina C. Williams, Katherine A. Suess, Sandro Tacchella, Benjamin D. Johnson | Summary: We present the UV-to-NIR size evolution of a sample of 161 quiescent galaxies (QGs) with $M_*>10^{10}M_odot$ over $0.5<z<5$. With deep multi-band NIRCam images in GOODS-South from JADES, we measure the effective radii […]
Kavli Affiliate: Roberto Maiolino | Summary:We present the UV-to-NIR size evolution of a sample of 161 quiescent galaxies (QGs) with $M_*>10^10M_odot$ over $0.5<z<5$. With deep multi-band NIRCam images in GOODS-South from JADES, we measure the effective radii ($R_e$) of the galaxies at rest-frame 0.3, 0.5 and 1$μm$. On average, QGs are 45% (15%) more compact […]
Kavli Affiliate: E. P. S. Shellard | Summary:In this paper, we perform an investigation into the effect of the string radius of curvature $R_mathrm,Gaussian$ on the magnitude and relative magnitude of the massive and massless radiation from axion (global) string configurations, motivated by qualitative observations from string network simulations. We construct initial conditions from travelling […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Jan Scholtz, Roberto Maiolino, Francesco D’Eugenio, Emma Curtis-Lake, Stefano Carniani | Summary: We present the identification of 42 narrow-line active galactic nuclei (type-2 AGN) candidates in the two deepest observations of the JADES spectroscopic survey with JWST/NIRSpec. The spectral coverage and the depth of our observations allow […]