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

Tricouplers for nulling interferometry with photonic integrated circuits

Posted by klaurent July 28, 2026August 10, 2026Caltech

Kavli Affiliate: Dimitri Mawet| Summary:Solar System analog gas giants and habitable-zone terrestrial planets are observationally elusive to conventional exoplanet detection and characterization techniques, i.e. transits, radial velocities, and direct imaging. Long baseline nulling interferometry across multiple apertures suppresses starlight and enables detection of faint planetary signals at higher spatial resolution than traditional coronagraphs on single-aperture […]

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High-statistics simulations of NewAthena WFI background using Geant4

Posted by klaurent July 28, 2026August 10, 2026MIT

Kavli Affiliate: Marshall Bautz | Summary:The observation of hot gas structures is one science goal of the Wide Field Imager (WFI) on ESA’s NewAthena X-ray observatory. Because the measurement of these faint diffuse sources is limited by background from cosmic ray particle interactions within the instrument, understanding and reducing this background is critical. To this […]

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The FRB–Galaxy Overdensity Cross-Correlation Statistic in Dispersion Space

Posted by klaurent July 28, 2026August 10, 2026MIT

Kavli Affiliate: Kiyoshi Masui | Summary:Cross-correlating the dispersion of fast radio bursts (FRBs) with galaxies provides a means to study the distribution of the baryons in the Universe, even in the absence of FRB redshifts. To this end, two variants of angular cross-power spectrum statistics have been proposed: one between DM and galaxy density binned […]

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Stellar rotation of S301 as a macroscopic gyroscope to test general relativity

Posted by klaurent July 28, 2026August 10, 2026Peking

Kavli Affiliate: Pau Amaro Seoane | Summary:Stellar trajectories around the Galactic Center provide a testing environment for general relativity. The intrinsic rotation of these stars evolves under covariant transport in curved spacetime and classical Newtonian quadrupole torques. We analyze the recently observed S301 S-star to quantify the relativistic precession of its rotational axis. Its 8.7-year […]

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Advancing X-Ray Camera Front-End Electronics Architecture through the AXIS-TAP Technology Platform

Posted by klaurent July 28, 2026August 10, 2026MIT

Kavli Affiliate: Catherine Grant | Summary:Advancing time-domain soft X-ray astronomy demands focal plane readout electronics capable of high-speed digitization with low noise while maintaining spectral fidelity across multiple detector channels. The Advanced X-ray Imaging Satellite (AXIS), a NASA Probe-class mission concept, provided the driving requirements and heritage for developing a generalized high-speed (>=5 fps) camera […]

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Advancing X-Ray Camera Front-End Electronics Architecture through the AXIS-TAP Technology Platform

Posted by klaurent July 28, 2026August 10, 2026MIT

Kavli Affiliate: Robert Goeke | Summary:Advancing time-domain soft X-ray astronomy demands focal plane readout electronics capable of high-speed digitization with low noise while maintaining spectral fidelity across multiple detector channels. The Advanced X-ray Imaging Satellite (AXIS), a NASA Probe-class mission concept, provided the driving requirements and heritage for developing a generalized high-speed (>=5 fps) camera […]

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LiteBIRD Mission Overview after Mission Reformation

Posted by klaurent July 28, 2026August 10, 2026Tokyo

Kavli Affiliate: Tomotake Matsumura | Summary:LiteBIRD is a JAXA-led space mission designed to produce all-sky microwave polarization maps. Its primary science goal is to test representative inflationary models by measuring the cosmic microwave background $B$-mode polarization generated by primordial gravitational waves, while also providing new insights into cosmology, particle physics, and astrophysics. The mission concept […]

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Social isolation recruits amygdala-medial prefrontal cortex projections to escalate alcohol drinking in male mice

Posted by dbos July 27, 2026August 10, 2026UCSD / Salk

Kavli Affiliate: Kay Tye | Authors: Reesha Patel, Kelly Kim, Makenzie Patarino, Rachelle Pamintuan, Felix Taschbach, Hao Li, Bitna Joo, Anna Pallé, Xianru Yu, Christopher R Lee, Aniek van Hoek, Jesse White, Rogelio Castro, Christian Cazares, Raymundo Miranda, Caroline Jia, Jeremy Delahanty, Kanha Batra, Laurel Keyes, Avraham Libster, Romy W. Wichmann, Talmo Pereira, Marcus […]

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TLR4 signaling drives tissue inflammation, Claudin-5 internalization, and vascular barrier breakdown in a mouse model of neonatal meningitis

Posted by dbos July 27, 2026August 10, 2026Hopkins

Kavli Affiliate: Jeremy Nathans | Authors: Philip V Seegren, Amir Rattner, Philip M Smallwood and Jeremy Nathans | Summary: Neonatal bacterial meningitis is a leading cause of infant morbidity and mortality, yet the molecular and cellular basis of the leptomeningeal response to infection remains poorly defined. Here, we study a mouse model of neonatal E. […]

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Investigating the Observational Progenitor Mass Gap in the White Dwarf Initial-Final Mass Relation. I. Cluster Census and Characterization of the First White Dwarfs in the Gap

Posted by klaurent July 27, 2026August 10, 2026Chicago

Kavli Affiliate: David W. Miller | Summary:In recent years, Gaia has been the primary driver of the expansion of the white dwarf (WD) initial-final mass relation (IFMR) in open clusters. The increased sample size has highlighted a pronounced observational gap at progenitor masses of $simeq2$–$2.7,M_odot$, with no spectroscopically confirmed cluster-member WDs in this range. Analysis […]

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