Kavli Affiliate: Herman L. Marshall | First 5 Authors: Swati Ravi, Swati Ravi, , , | Summary: Observations from the Imaging X-ray Polarimetry Explorer (IXPE) have revealed electric vector position angle (EVPA) rotation in several neutron star low-mass X-ray binaries, including the galactic X-ray burster GX 13+1. We developed a novel Bayesian nested sampling framework-"Q-U […]

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Swarali Shivraj Patil, Swarali Shivraj Patil, , , | Summary: We analyze the positional and morphological properties of about 3600 unique fast radio burst (FRB) sources reported in the second FRB catalog generated by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope. We find a two-dimensional […]

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Anna-Christina Eilers, Anna-Christina Eilers, , , | Summary: Ultra-violet (UV) radiation from accreting black holes ionizes the intergalactic gas around early quasars, carving out highly ionized bubbles in their surroundings. Any changes in a quasar’s luminosity are therefore predicted to produce outward-propagating ionization gradients, affecting the […]

Kavli Affiliate: Sara Seager | First 5 Authors: , , , , | Summary: TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star — located at a distance from its star such that it might, with the […]

Kavli Affiliate: Sara Seager | First 5 Authors: , , , , | Summary: The TRAPPIST-1 system offers one of the best opportunities to characterize temperate terrestrial planets beyond our own solar system. Within the TRAPPIST-1 system, planet e stands out as highly likely to sustain surface liquid water if it possesses an atmosphere. Recently, […]

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Alexandra M. Moroianu, Alexandra M. Moroianu, , , | Summary: We report the milliarcsecond localization of a high (1379 pc/cc) dispersion measure (DM) repeating fast radio burst, FRB 20190417A. Combining European VLBI Network detections of five repeat bursts, we confirm the FRB’s host to be a […]

Kavli Affiliate: Eric Miller | First 5 Authors: Hiromasa Suzuki, Hiromasa Suzuki, , , | Summary: The X-ray Imaging and Spectroscopy Mission (XRISM), launched into low-Earth orbit in 2023, observes the reflection of solar flare X-rays in the Earth’s atmosphere as a by-product of celestial observations. Using a $sim$one-year data set covering from October 2023 […]

Kavli Affiliate: Richard Mittleman | First 5 Authors: Tomislav Andric, Tomislav Andric, , , | Summary: GEMINI is an underground research and development facility dedicated to advancing seismic isolation and control technologies for future gravitational-wave observatories, including the Einstein Telescope (ET) and the Lunar Gravitational-Wave Antenna (LGWA). This paper presents the technical design and theoretical […]

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Danielle Frostig, Danielle Frostig, , , | Summary: Episodic mass accretion is the dominant mechanism for mass assembly in the proto-stellar phase. Although prior optical time-domain searches have allowed detailed studies of individual outbursts, these searches remain insensitive to the earliest stages of star formation. In […]

Kavli Affiliate: Erin Kara | First 5 Authors: XRISM Collaboration, XRISM Collaboration, , , | Summary: Galaxy clusters, the Universe’s largest halo structures, are filled with 10-100 million degree X-ray-emitting gas. Their evolution is shaped by energetic processes such as feedback from supermassive black holes (SMBHs) and mergers with other cosmic structures. The imprints of […]