Kavli Affiliate: Anthony Challinor | Summary:We revisit the flat-sky approximation for evaluating the angular power spectra of projected random fields by retaining information about the correlations along the line of sight. With broad, overlapping radial window functions, these line-of-sight correlations are suppressed and are ignored in the Limber approximation. However, retaining the correlations is important […]
Kavli Affiliate: Roberto Maiolino| First 5 Authors: Daniel J. Eisenstein, Daniel J. Eisenstein, , , | Summary:We present an overview of the James Webb Space Telescope (JWST) Advanced Deep Extragalactic Survey (JADES), an ambitious program of infrared imaging and spectroscopy in the GOODS-S and GOODS-N deep fields, designed to study galaxy evolution from high redshift […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Gabriel Maheson, Roberto Maiolino, Mirko Curti, Ryan Sanders, Sandro Tacchella | Summary: We explore the dependence of dust attenuation, as traced by the $rm H_{alpha}/rm H_{beta}$ Balmer decrement, on galactic properties by using a large sample of SDSS spectra. We use both Partial Correlation Coefficients (PCC) and […]
Kavli Affiliate: E. P. S. Shellard | Summary:We present a new independent pipeline for the CMB bispectrum estimation of primordial non-Gaussianity and release a public code for constraining bispectrum shapes of interest based on the Planck 2018 temperature and polarization data. The estimator combines the strengths of the conventional KSW and Modal estimators at the […]
Kavli Affiliate: Debora Sijacki | First 5 Authors: Jake S. Bennett, Debora Sijacki, Tiago Costa, Nicolas Laporte, Callum Witten | Summary: High-redshift quasars ($zgtrsim6$), powered by black holes (BHs) with large inferred masses, imply rapid BH growth in the early Universe. The most extreme examples have inferred masses of $sim ! 10^9,$M$_odot$ at $z = […]
Kavli Affiliate: George Efstathiou | Summary:Weak galaxy lensing surveys have consistently reported low values of the $S_8$ parameter compared to the $textitPlanck ΛrmCDM$ cosmology. Amon & Efstathiou (2022) used KiDS-1000 cosmic shear measurements to propose that this tension can be reconciled if the matter fluctuation spectrum is suppressed more strongly on non-linear scales than assumed […]
Kavli Affiliate: Kaisey Mandel | First 5 Authors: Patrick L. Kelly, Steven Rodney, Tommaso Treu, Masamune Oguri, Wenlei Chen | Summary: The gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted an additional […]
Kavli Affiliate: Anthony Challinor | Summary:We present new measurements of cosmic microwave background (CMB) lensing over $9400$ sq. deg. of the sky. These lensing measurements are derived from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) CMB dataset, which consists of five seasons of ACT CMB temperature and polarization observations. We determine the amplitude […]
Kavli Affiliate: E. P. S. Shellard | Summary:We consider the evolution of current-carrying cosmic string networks described by the charge-velocity-dependent one scale (CVOS) model beyond the linear equation of state regime, specifically focusing on the Witten superconducting model. We find that, generically, for almost chiral currents, the network evolution reduces dynamically to that of the […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Sylvain Veilleux, Weizhe Liu, Andrey Vayner, Dominika Wylezalek, David S. N. Rupke | Summary: Quasar feedback may regulate the growth of supermassive black holes, quench coeval star formation, and impact galaxy morphology and the circumgalactic medium. However, direct evidence for quasar feedback in action at the epoch […]