Kavli Affiliate: Sven Herrmann | Summary:The Lunar Surface Electromagnetics Experiment (LuSEE-Night) is a joint NASA-DOE-ESA low-frequency radio telescope that will reach the lunar far side in 2027. The unknown dielectric properties of the subsurface at the LuSEE-Night landing site impose the most significant limitation for precision instrument calibration, as reflections from the lunar subsurface can […]

Kavli Affiliate: Sven Herrmann | Summary:The Lunar Surface Electromagnetics Experiment (LuSEE-Night) is a joint NASA-DOE-ESA low-frequency radio telescope that will reach the lunar far side in 2027. The unknown dielectric properties of the subsurface at the LuSEE-Night landing site impose the most significant limitation for precision instrument calibration, as reflections from the lunar subsurface can […]

Kavli Affiliate: Bruce Macintosh | Summary:A primary goal of the Habitable Worlds Observatory (HWO) is to detect and measure the abundance of biosignature molecules, such as water (H2O) and oxygen (O2), in the atmosphere of Earth analogs. This is expected to require deep spectroscopic observations lasting hundreds of hours per planet. In this context, it […]

Kavli Affiliate: Kent Irwin | Summary:Searches for QCD axions with masses in the neV/$c^2$ mass range are strongly motivated by new physics at the GUT scale and by well-motivated pre-inflationary axion symmetry breaking scales. This parameter space is challenging to probe due to the small axion-photon couplings, which typically require large, high-field magnets with substantial […]

Kavli Affiliate: Kent Irwin | Summary:Searches for QCD axions with masses in the neV/$c^2$ mass range are strongly motivated by new physics at the GUT scale and by well-motivated pre-inflationary axion symmetry breaking scales. This parameter space is challenging to probe due to the small axion-photon couplings, which typically require large, high-field magnets with substantial […]

Kavli Affiliate: Daniel R. Wilkins | Summary:Recent XRISM observations of active galactic nuclei such as PDS 456 have revealed “forests” of absorption lines best modeled by five distinct absorption zones with varying large blueshifts. We propose a model in which these relativistic blueshifts originate from the motion of the accretion disc itself, rather than from […]

Kavli Affiliate: Susan Clark | Summary:We present a distance-resolved reconstruction of the local line-of-sight Galactic magnetic field, $B_$, by combining a 3D electron density ($n_e$) map derived from dust map-informed simulations and a full-sky map of Faraday rotation measure (RM). The forward model evaluates RM on the same 3D grid as the $n_e$ map and […]

Kavli Affiliate: Nicola Omodei | Summary:The Crab pulsar experienced two relatively small glitches separated by only 20 days in September and October 2025. IXPE observed the source twice, with delay times since the glitch epoch ranging between 35 and 75 days, depending on the observation. We carried out a multi-method analysis to investigate whether there […]

Kavli Affiliate: Steven Kahn | Summary:We present Rubin Data Preview 1 DP1, the first data from the NSF DOE Vera C Rubin Observatory, comprising raw and calibrated single epoch images, coadds, difference images, detection catalogs, and ancillary data products. DP1 is based on 1792 optical near infrared exposures acquired over 48 distinct nights by the […]

Kavli Affiliate: Roger Romani | Summary:We present a model for pulsar filaments – a class of narrow X-ray nebulae misaligned with the proper motion, powered by pulsar-generated $e^pm$. We suggest that cosmic ray-enhanced turbulence drives pitch-angle scattering and dominates $e^pm$ motion along the filament; highly amplified magnetic fields are not required. A simulation built on […]