Kavli Affiliate: Mark Vogelsberger | Summary:We present a high-resolution hydrodynamical simulation of the formation and evolution of nuclear structures in a Milky Way-mass galaxy using the SMUGGLE multiphase ISM and stellar feedback model. The system naturally develops a bar of length $approx5$ kpc in isolation, driving sustained gas inflows toward the center that lead to […]
Kavli Affiliate: Mark Vogelsberger | Summary:We present a high-resolution hydrodynamical simulation of the formation and evolution of nuclear structures in a Milky Way-mass galaxy using the SMUGGLE model. The system naturally develops a bar in isolation of $approx5$ kpc in length, driving sustained gas inflows toward the center that lead to the formation of a […]
Kavli Affiliate: Dheeraj Pasham | Summary:The repeated tidal stripping of a star by a supermassive black hole, known as a repeating partial tidal disruption event (rpTDE), can give rise to a transient that rebrightens months to years after the first outburst. Among the rpTDE candidates so far observed, some exhibit dimmer peak luminosities during each […]
Kavli Affiliate: Dheeraj Pasham | Summary:The repeated tidal stripping of a star by a supermassive black hole, known as a repeating partial tidal disruption event (rpTDE), can give rise to a transient that rebrightens months to years after the first outburst. Among the rpTDE candidates so far observed, some exhibit dimmer peak luminosities during each […]
Kavli Affiliate: Lina Necib | Summary:Self-Interacting Dark Matter (SIDM) models with large cross sections at relative velocities below $sim100,rm km , s^-1$ can be tested with dwarf galaxy observations. We analyze six dark-matter-only zoom-in $sim10^10,rm M_odot$ halos with diverse assembly histories, adopting a cross section over mass of $σ/m = 70,cm^2 , g^-1$. We find […]
Kavli Affiliate: Erin Kara | Summary:Accretion and relativistic jet formation take place across the black hole mass range, from black holes of just a few solar masses to those in excess of ten billion. Despite the enormous range in scales, qualitative similarities and quantitative scalings appear to connect the entire population. In March 2026, researchers […]
Kavli Affiliate: Avi Shporer | Summary:We present resolutions as to the nature of six speculative candidate companions proposed in the final data release of the Pan-Pacific Planet Search, a 6-year radial-velocity survey of 164 southern evolved stars using the now-decommissioned UCLES spectrograph on the 3.9m Anglo-Australian Telescope. New radial-velocity observations, TESS asteroseismology, and Hipparcos-Gaia astrometry […]
Kavli Affiliate: Michael McDonald | Summary:Galaxy cluster strong gravitational lensing plays a central role in precision cosmology, yet robust theoretical predictions have lagged behind an abundance of high-quality strong lensing observations. This shortfall reflects both a mismatch between the geometry of the strong-lensing problem and standard cubic simulation boxes, and the fundamental tension between simulation […]
Kavli Affiliate: Michael McDonald | Summary:Galaxy cluster strong gravitational lensing plays a central role in precision cosmology, yet robust theoretical predictions have lagged behind an abundance of high-quality strong lensing observations. This shortfall reflects both a mismatch between the geometry of the strong-lensing problem and standard cubic simulation boxes, and the fundamental tension between simulation […]
Kavli Affiliate: Mark Vogelsberger | Summary:High-redshift active galactic nuclei (AGN) serve as powerful probes of early black-hole growth, galaxy formation, and the evolving intergalactic medium (IGM). In this work, we use Lumina, a cosmological radiation-hydrodynamic simulation spanning the epochs of hydrogen and helium reionization, which combines a large $(500,rm cMpc)^3$ volume with $2times 6000^3$ resolution […]