Kavli Affiliate: Blake Sherwin | Summary:Over the last year, kinematic Sunyaev–Zel’dovich (kSZ) velocity reconstruction — the measurement of the large-scale velocity field using the anisotropic statistics of the small-scale kSZ-galaxy overdensity correlation — has emerged as a statistically significant probe of the large-scale Universe. In this work, we perform a 2-dimensional tomographic reconstruction using ACT […]

Kavli Affiliate: A. C. Davis| First 5 Authors: S. Al Kharusi, S. Al Kharusi, , , | Summary:EXO-200 was a leading double beta decay experiment consisting of a single-phase, enriched liquid xenon time projection chamber filled with an admixture of 80.672% $^136$Xe and 19.098% $^134$Xe. The detector operated at WIPP between 2010 and 2018 and […]

Kavli Affiliate: Anthony Challinor | Summary:We present a cosmic microwave background (CMB) lensing power spectrum analysis using daytime data (11am-11pm UTC) gathered by the Atacama Cosmology Telescope (ACT) over the period 2017-2022 (ACT Data Release 6). This dataset is challenging to analyze because the Sun heats and deforms the telescope mirror, complicating the characterization of […]

Kavli Affiliate: Martin Haehnelt | Summary:Here we introduce the SEEDZ simulations, a suite of cosmological hydrodynamic simulations exploring the formation and growth of the first massive black holes in the Universe. SEEDZ includes models for Population III star formation, supernovae explosions and the resulting formation of light seed black holes, metal enrichment and subsequent Population […]

Kavli Affiliate: Martin Haehnelt | Summary:Here we introduce the SEEDZ simulations, a suite of cosmological hydrodynamic simulations exploring the formation and growth of the first massive black holes in the Universe. SEEDZ includes models for Population III star formation, supernovae explosions and the resulting formation of light seed black holes, metal enrichment and subsequent Population […]

Kavli Affiliate: Roberto Maiolino| First 5 Authors: Seunghwan Lim, Seunghwan Lim, , , | Summary:We use the highest-resolution FLAMINGO hydrodynamical simulation to quantify cosmic variance and large-scale coherence in the evolution of massive galaxies at high redshift. FLAMINGO combines a $(1,mathrmcGpc)^3$ volume with baryonic resolution sufficient to identify $gtrsim,10^3$ independent JWST-like survey volumes of $(100,mathrmcMpc)^3$, […]

Kavli Affiliate: Roberto Maiolino | Summary:Direct observations of Lyman continuum (LyC) radiation from galaxies during the Epoch of Reionization (EoR) are impeded by absorption in the intergalactic medium, requiring indirect methods to infer the escape fraction of ionizing photons ($f_rm esc^rm LyC$). One approach is to develop and validate such methods on local analogues of […]

Kavli Affiliate: Martin Haehnelt | Summary:The fraction of "dark pixels" in the Ly$α$ and other Lyman-series forests at $zsim 5-6$ provides a powerful constraint on the end of the reionization process. Any spectral region showing transmission must be highly ionized, while dark regions could be ionized or neutral, thus the dark pixel fraction provides a […]

Kavli Affiliate: Debora Sijacki | Summary:We present a suite of high-resolution simulations to study how different stellar feedback channels regulate the growth of central intermediate-mass black holes (IMBHs) in dwarf galaxies hosting nuclear star clusters (NSCs). We employ a super-Lagrangian refinement scheme to resolve the self-gravity radius of the $α$-accretion disc ($<0.01$~pc) and follow the […]

Kavli Affiliate: Debora Sijacki | Summary:We present a suite of high-resolution simulations to study how different stellar feedback channels regulate the growth of central intermediate-mass black holes (IMBHs) in dwarf galaxies hosting nuclear star clusters (NSCs). We employ a super-Lagrangian refinement scheme to resolve the self-gravity radius of the $α$-accretion disc ($<0.01$~pc) and follow the […]