August 2026 – Page 5 – Kavli Institute Pre-Print Publications

The THESAN-ZOOM project: clumpiness of high-redshift galaxies and its connection to bursty star formation

Posted by klaurent August 19, 2026August 25, 2026MIT, This Week: Astrophysics

Kavli Affiliate: Mark Vogelsberger | Summary:Recent JWST observations have revealed diverse high-redshift galaxy morphologies, including a population with irregular and clumpy structures. The physical origin of these structures, and the extent to which observational biases shape their appearance, remain uncertain. We present a power-spectrum-based method for quantifying galaxy clumpiness across spatial scales, using the radiation-hydrodynamic […]

Continue..

The Challenge of Observing Patchy Reionization with CMB Optical-Depth Fluctuations

Posted by klaurent August 19, 2026August 25, 2026Chicago, This Week: Astrophysics

Kavli Affiliate: Nickolay Gnedin | Summary:Spatial fluctuations in the Thomson optical depth encode information about the inhomogeneous nature of cosmic reionization. We compute the optical-depth angular power spectrum, $C_ell^ττ$, using past lightcones constructed from five Cosmic Reionization on Computers (CROC) radiation-hydrodynamical simulations. By decomposing the electron-density field into patchy and density components, we quantify the […]

Continue..

Identifying Cost-Favorable Locations for Cosmic Explorer

Posted by klaurent August 19, 2026August 25, 2026MIT, This Week: Astrophysics

Kavli Affiliate: David Shoemaker | Summary:Cosmic Explorer (CE) is a proposed next-generation gravitational-wave observatory that aims to extend our gravitational-wave vision to the edge of the observable universe. With a foundation of technology proven by the National Science Foundation’s Laser Interferometer Gravitational-Wave Observatory (LIGO), CE will observe black holes and neutron stars across cosmic time, […]

Continue..

Local Structure and Dynamics of Three-Dimensional Covalent Organic Frameworks

Posted by klaurent August 19, 2026August 25, 2026Berkeley, This Week: Nanoscience

Kavli Affiliate: Omar M. Yaghi | Summary:Resolving and controlling the local dynamical properties of covalent organic frameworks (COFs) remains a central challenge, particularly when assembled from large, flexible building units. Here, we combine synchrotron X-ray pair distribution function (PDF) analyses with machine learning-accelerated molecular dynamics (MD) simulations to resolve the local structure and dynamics of […]

Continue..

Specialized Shh-sensing cell with unique cilia and basal body in the forebrain ventricular epithelium

Posted by dbos August 19, 2026August 24, 2026UCSF

Kavli Affiliate: Arturo Alvarez-Buylla and Arnold R. Kriegstein | Authors: Arantxa Cebrian-Silla, Fiona R Dale-Huang, Stephanie A Redmond, Carmen Elena Aragon Ortiz, Juan Morianos, Marcos Assis Nascimento, Zhenmeiyu Li, Cristina Guinto, Susana Gonzalez-Granero, Ricardo Romero-Rodriguez, Cathryn R Cadwell, Vicente Herranz-Perez, Jose Manuel Garcia-Verdugo, Arnold Kriegstein, Eric Huang and Arturo Alvarez-Buylla | Summary: Ependymal (E1) cells, […]

Continue..

VERITAS 2.3.1: Optimisation and Characterisation of the Enhanced Readout ASIC for the NewAthena Wide Field Imager

Posted by klaurent August 19, 2026August 25, 2026Stanford, This Week: Astrophysics

Kavli Affiliate: Steven Allen | Summary:VERITAS 2.3.1 is the next iteration of the VErsatile Readout based on Integrated Trapezoidal Analogue Shapers (VERITAS) integrated circuit (IC) architecture for high-speed, low-noise readout of DEPleted Field Effect Transistor (DEPFET) detectors in the Wide Field Imager (WFI) on ESA’s NewAthena X-ray satellite. Building on VERITAS 2.3, which demonstrated a […]

Continue..

A model for the enhanced production rate of early-type hypervelocity stars in the Galactic halo

Posted by klaurent August 19, 2026August 25, 2026Peking, This Week: Astrophysics

Kavli Affiliate: Fukun Liu| Summary: About twenty late B-type hypervelocity stars (HVSs) traveling faster than the Galactic escape velocity have been discovered in the Galactic halo, many of which were ejected from the Galactic center (GC). Recently, we have advocated that these HVSs most likely formed in the nuclear star cluster (NSC) $150$–$500, rmMyr$ ago […]

Continue..

The Atacama Cosmology Telescope: Passband Measurements with an Analysis of Systematic Errors

Posted by klaurent August 18, 2026August 25, 2026Chicago, This Week: Astrophysics

Kavli Affiliate: Jeffrey McMahon | Summary:We present measurements of the spectral response of the four Advanced ACTPol (AdvACT) multichroic detector arrays, which observed in frequency bands centered near 30, 40, 90, 150, and 220 GHz. The passbands were measured with a Fourier transform spectrometer (FTS) combined with coupling optics that direct and match the output […]

Continue..

ATG2A interacts with RAB1A and ARFGAP1 positive membranes during autophagosome biogenesis

Posted by dbos August 18, 2026August 25, 2026This Week: Neuroscience, Yale

Kavli Affiliate: Pietro De Camilli | Authors: Devin M Fuller, Yumei Wu, Florian Schueder, Burha Rasool, Shanta Nag, Justin L. Korfhage, Rolando Garcia-Milian, Katerina D Melnyk, Joerg Bewersdorf, Pietro De Camilli and Thomas Melia | Summary: Autophagosomes form from seed membranes that expand through bulk-lipid transport via the bridge-like lipid transporter ATG2. The origins of […]

Continue..

Observation of magnetic quantum phase crossovers in a semiconductor spin ladder

Posted by klaurent August 18, 2026August 25, 2026Delft, This Week: Nanoscience

Kavli Affiliate: Menno Veldhorst | Summary:Understanding collective phases of strongly correlated quantum magnets relies on theoretically tractable model systems with precise microscopic control. Antiferromagnetic spin ladders provide such a setting, hosting field-tunable gapped and gapless phases at half filling and unconventional pairing tendencies upon doping. Here, we realize a programmable Heisenberg spin ladder in a […]

Continue..