Kavli Affiliate: Gabor Furesz | Summary:The Lazuli Space Observatory is a 3-meter aperture astronomical facility designed for rapid-response observations and precision astrophysics across visible to near-infrared wavelengths (400-1700 nm bandpass). An off-axis, freeform telescope delivers diffraction-limited image quality (Strehl $>$0.8 at 633 nm) to three instruments across a wide, flat focal plane. The three instruments […]
Kavli Affiliate: Erin Kara | Summary:We present the first XRISM/Resolve observations of the active galactic nucleus, NGC 1365, obtained in 2024 February and July. NGC 1365 is known for rapid transitions between Compton-thick and Compton-thin states, along with strong absorption from a highly ionized wind. During our observations, the source is found in a persistent […]
Kavli Affiliate: Sara Seager | Summary:Early JWST observations of TRAPPIST-1 have revealed an unexpected puzzle: energetic white-light flares ($rmE > 10^30$ erg) reach temperatures of only $sim$3500–4000,K, nearly three times cooler than typical solar flares, which peak around 9000–10000,K. Here we explain this difference by identifying the physical mechanism that regulates flare temperatures on late […]
Kavli Affiliate: Frank Wilczek | Summary:We present a general framework for the production of squeezed quantum states of the gravitational field in linearized quantum gravity. Time-dependent couplings in the quadratic part of the action generically produce squeezed states from the vacuum. Using the harmonic oscillator as an example, we describe three techniques to obtain the […]
Kavli Affiliate: Frank Wilczek | Summary:We propose a double-resonant interferometric strategy for axion dark matter detection that combines microwave circuit resonance with Fabry–Pérot optical enhancement. In a strong magnetic field, axion–photon mixing induces a weak oscillating electric field, which is first amplified by a resonant circuit and then transduced into an optical phase shift via […]
Kavli Affiliate: Robert Simcoe | Summary:The Wide-field Infrared Transient Explorer (WINTER) is a new near-infrared time-domain survey instrument installed on a dedicated 1-meter robotic telescope at Palomar Observatory. The project takes advantage of the recent technology advances in time-domain astronomy, robotic telescopes, large-format sensors, and rapid data reduction and alert software for timely follow up […]
Kavli Affiliate: Robert Simcoe | Summary:The Wide-field Infrared Transient Explorer (WINTER) is a near-infrared time-domain survey instrument operating on a dedicated 1-meter robotic telescope at Palomar Observatory. The project takes advantage of recent technology advances in time-domain astronomy, robotic telescopes, large-format sensors, and rapid data reduction and alert software for timely follow up of events. […]
Kavli Affiliate: Mark Vogelsberger | Summary:Warm and self-interactive dark matter cosmologies have been proposed as nonbaryonic solutions to the tensions between the $Λ$ cold dark matter model and observations at the kiloparsec scale. In this paper, we used the dark matter-only runs of the textscaida-tng project, a set of cosmological simulations of different sizes and […]
Kavli Affiliate: Mark Vogelsberger | Summary:In the standard Cold Dark Matter (CDM) scenario, the density profiles of dark matter haloes are well described by analytical models linking their concentration to halo mass. Alternative scenarios, such as warm dark matter (WDM) and self-interacting dark matter (SIDM), modify the inner structure of haloes and predict different profile […]
Kavli Affiliate: Andrew Vanderburg | Summary:The JWST MIRI detector exhibits a flux deficit persistence, but its timescales and impacts remain largely uncharacterized, particularly at the longest imaging wavelengths. In this study, we analyze full-field MIRI imager observations at 21 $μ$m (F2100W) to quantify detector persistence following a saturation event by a bright (K = 5.65 […]