Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Dominika Ďurovčíková, Dominika Ďurovčíková, , , | Summary: Measurements of quasar lifetimes at high redshift indicate that the earliest billion-solar-mass supermassive black holes (SMBHs) have only been active as luminous quasars for less than a million years. Recently, extended Ly$alpha$ nebulae around $zsim6$ quasars have revealed […]
Kavli Affiliate: Morteza Gharib | First 5 Authors: Chenghao Wang, Chenghao Wang, , , | Summary: Multi-modal ground-aerial robots have been extensively studied, with a significant challenge lying in the integration of conflicting requirements across different modes of operation. The Husky robot family, developed at Northeastern University, and specifically the Husky v.2 discussed in this […]
Kavli Affiliate: John Silverman | First 5 Authors: Qian Wang, Qian Wang, , , | Summary: During cosmic noon ($zsim1-3$), when both star formation and black hole growth peaked, galaxy mergers are predicted to trigger dual active galactic nuclei (AGN) that eventually coalesce as supermassive black hole (SMBH) binaries. However, observations of dual quasars with […]
Kavli Affiliate: Luis C. Ho | First 5 Authors: Xunda Sun, Xunda Sun, , , | Summary: We employ the high-redshift suite of FIRE-2 cosmological hydrodynamic zoom-in simulations to investigate the evolution of gas-phase metallicity radial gradients in galaxies in the epoch of reionization (EoR). Our sample consists of 22 galaxies spanning the redshift range […]
Kavli Affiliate: Erin Kara | First 5 Authors: Laura W. Brenneman, Laura W. Brenneman, , , | Summary: We present a time-averaged spectral analysis of the 2024 XRISM observation of the narrow-line Seyfert-1 galaxy MCG–6-30-15, taken contemporaneously with XMM-Newton and NuSTAR. Our analysis leverages a unique combination of broadband and high-resolution X-ray spectroscopy to definitively […]
Kavli Affiliate: Adam Mantz | First 5 Authors: Benjamin J. Vaughan, Benjamin J. Vaughan, , , | Summary: The conversion of gravitational potential to kinetic energy results in an intracluster medium (ICM) gas with a characteristic temperature near 10 keV in the most massive galaxy clusters. X-ray observations, primarily from Chandra and XMM-Newton, have revealed […]
Kavli Affiliate: Zheng Zhu | First 5 Authors: Xiuwei Xu, Xiuwei Xu, , , | Summary: Towards the aim of generalized robotic manipulation, spatial generalization is the most fundamental capability that requires the policy to work robustly under different spatial distribution of objects, environment and agent itself. To achieve this, substantial human demonstrations need to […]
Kavli Affiliate: Feng Yuan | First 5 Authors: Paul Caucal, Paul Caucal, , , | Summary: We revisit the calculation of the next-to-leading order (NLO) corrections to dijet production in electron-ion collisions at small $x$. We focus on the back-to-back configuration where the relative transverse momentum $P_perp$ of the measured jets is much larger than […]
Kavli Affiliate: Bruce Macintosh | First 5 Authors: , , , , | Summary: We present high-contrast direct spectroscopy of the low-mass, cool exoplanet 51 Eridani b (2-4 M$_textrmJup$, $sim$750 K) using JWST / NIRSpec in a fixed-slit configuration (F290LP / G395H, $3-5,mu$m, R$sim$2,700). A cross correlation analysis between the continuum-subtracted data and atmospheric forward […]
Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Xiang Zhang, , , | Summary: Autoregressive (AR) models, common in sequence generation, are limited in many biological tasks such as de novo peptide sequencing and protein modeling by their unidirectional nature, failing to capture crucial global bidirectional token dependencies. Non-Autoregressive (NAR) models offer holistic, […]