Kavli Affiliate: Claudio Ricci | Summary:This chapter presents an overview of the unification models for Active Galactic Nuclei (AGN), focusing on the physical structures, classification schemes, and evolutionary processes that characterize accreting supermassive black holes. We introduce the fundamental components of AGN, including the supermassive black hole, accretion disk, jets, outflows, broad-line and narrow-line regions, […]
Kavli Affiliate: Claudio Ricci | Summary:This chapter presents an overview of the unification models for Active Galactic Nuclei (AGN), focusing on the physical structures, classification schemes, and evolutionary processes that characterize accreting supermassive black holes. We introduce the fundamental components of AGN, including the supermassive black hole, accretion disk, jets, outflows, broad-line and narrow-line regions, […]
Kavli Affiliate: Damon Clark | Authors: Harsh Vashistha, Natalia CB Matos, Heng Wu and Damon A Clark | Summary: Detecting approaching objects is essential for survival, and studies across animals have identified neurons and circuits selective for objects that grow in size over time, a hallmark of visual approach. However, approach as a physical process […]
Kavli Affiliate: Dhruv Grover | Authors: Woochan Choi, Shyam Srinivasan and Dhruv Grover | Summary: Learning often requires inference over hidden task structure, including features that predict outcomes. In mammals, prediction-error signaling by midbrain dopamine neurons is considered central to learning, but how these neurons reflect the progression and stability of learning remains unclear. Using […]
Kavli Affiliate: Leslie B. Vosshall | Authors: Umberto Palatini, Stéphanie Dabo, Adriana Rosas-Villegas, Yael N. Tsitohay, Alexandra E. DeFoe, Nadav Shai, Louis Lambrechts and Leslie B. Vosshall | Summary: Billions of people each year are at risk from infection by dengue, Zika, yellow fever, and chikungunya viruses, which are transmitted by female Aedes aegypti mosquitoes. […]
Kavli Affiliate: Salvatore Vitale | Summary:The distribution of the effective inspiral spin ($χ_mathrmeff$) of the binary black holes detected by LIGO-Virgo-KAGRA can shed light on their formation pathways. We analyze the GWTC-5.0 dataset with two models-one flexible, one fully parametric-that jointly describe $χ_mathrmeff$ and primary mass. We clarify that the previously-reported skewness in the $χ_mathrmeff$ […]
Kavli Affiliate: Salvatore Vitale | Summary:The distribution of the effective inspiral spin ($χ_mathrmeff$) of the binary black holes detected by LIGO-Virgo-KAGRA can shed light on their formation pathways. We analyze the GWTC-5.0 dataset with two models-one flexible, one fully parametric-that jointly describe $χ_mathrmeff$ and primary mass. We clarify that the previously-reported skewness in the $χ_mathrmeff$ […]
Kavli Affiliate: Shenghan Jiang | Summary:How do we detect topological phases from a single ground state? Entanglement entropy and spectrum have long been the standard tools — but the reduced density matrix (RDM) itself contains far more information. We show that the RDM of a 2D topologically ordered system, expressed at the entanglement cut, realizes […]
Kavli Affiliate: Shenghan Jiang | Summary:How do we detect topological phases from a single ground state? Entanglement entropy and spectrum have long been the standard tools — but the reduced density matrix (RDM) itself contains far more information. We show that the RDM of a 2D topologically ordered system, expressed at the entanglement cut, realizes […]
Kavli Affiliate: Luis Ho | Summary:Dwarf galaxies, characterized by their low luminosities and masses, are excellent candidates for searches for intermediate-mass black holes (IMBHs), particularly when they show strong accretion and ejection activity. The dwarf galaxy SDSS J101747.09+393207.7 has recently been found to display a very high X-ray luminosity and an X-shaped optical structure, possibly […]