Kavli Affiliate: Archana Raja| Summary:The simple electrostatic picture of a trion is that of an excess charge inducing an exciton polarization and binding closer (farther) to the hole (electron) side of it. Trion formation can be forbidden when such spontaneous rearrangement of charges is not allowed by the application of external perturbation, such as electric […]
Kavli Affiliate: Yuh Nung Jan | Authors: Adeline J.H. Yong, Yayu Wang, Juan A. Oses-Prieto, Tong Cheng, Chao Chen, Lane Domke, Mario V. Zubia, Jeffrey Simms, Alma L. Burlingame, Lily Y. Jan, Nicholas T. Ingolia, J. Wren Kim and Yuh Nung Jan | Summary: Synapses are dynamic structures whose protein composition remodels in response to […]
Kavli Affiliate: Xian Chen| Summary: Quasi-periodic eruptions (QPEs) are repeated X-ray bursts originating in galactic nuclei. Of the many proposed models, the favored model is the disk-collision model in which a stellar mass orbiter collides with a disk formed from a tidal disruption event, generating flares twice per orbit. In this model QPEs are tracers […]
Kavli Affiliate: Ann-Shyn Chiang | Authors: Yung-Ching Lu, Chih-Ying Chen, Ling-Hui Yen, Chi-Lien Yang, Ya-Ding Liu, Wen-Jun Chen, Kuan-Lin Feng, Ming-Chin Wu, Ann-Shyn Chiang, Da-Jeng Yao, Chih-Ming Ho, Shih-Hwa Chiou and Li-An Chu | Summary: Long-term memory (LTM) formation typically requires extensive training or highly salient experiences, limiting learning efficiency. Operant conditioning is generally thought […]
Kavli Affiliate: Li Zhao | Authors: Zhao Li, Jian Chen, Emily M Cross, Megan A Outram, Daniel S Yu, Jana Sperschneider, Melania Figueroa, Peter N Dodds and Simon J Williams | Summary: Interactions between plants and pathogens drive long-term co-evolution through cycles of effector diversification and immune recognition. Effectors play central roles in this molecular […]
Kavli Affiliate: Feng Long| Summary: Tracing the chemical evolution of protoplanetary disks over time requires observations of disks at different ages. However, most JWST/MIRI surveys published to date have targeted younger ($sim$1-3 Myr) rather than older systems. We present the results of a JWST/MIRI MRS survey of the inner regions of 10 protoplanetary disks (ages […]
Kavli Affiliate: Feng Long| Summary: We present JWST/MIRI spectroscopy of 14 disks in the older (~5-10 Myr) Upper Scorpius (USco) association and use slab of gas in local thermal equilibrium to infer basic gas properties. We find that half of these disks are molecular rich, with detections of H$_2$O, CO$_2$, HCN, C$_2$H$_2$, and H$_2$, while […]
Kavli Affiliate: Michael McDonald | Summary:We present JWST/NIRSpec spectroscopy of the low-mass, metal-poor galaxy SDSS~J160135.95+311353.7 (J1601), selected for its extreme mid-infrared colors and compact nuclear emission, placing it within widely used WISE color diagnostics for active galactic nuclei (AGNs). Despite this selection, we find no evidence for coronal lines, X-ray emission, or variability typically associated […]
Kavli Affiliate: Martin Haehnelt | Summary:We investigate the assembly history of early galaxies in the SEEDZ hydrodynamic simulations, to investigate the high inflow rates believed to be required for the formation of supermassive stars (SMSs), dense stellar clusters and subsequently heavy seed black holes. Using a heavy seed formation criteria of $>$1 M$_odot$ yr$^-1$ flowing […]
Kavli Affiliate: J. S. Villasenor | Summary:The Carrollian regime of gravity provides a useful ultrarelativistic framework for studying asymptotically flat spacetimes, horizon dynamics, and condensed matter systems. In this paper, we present a comprehensive Hamiltonian analysis of the most general Carroll-invariant Lagrangian that can be derived from the Holst action. To guide the analysis, Cartan […]