Testing Gravity with Realistic Gravitational Waveforms in Pulsar Timing Arrays

Kavli Affiliate: Wayne Hu | First 5 Authors: Wayne Hu, Qiuyue Liang, Meng-Xiang Lin, Mark Trodden, | Summary: We consider the effects of relaxing the assumption that gravitational waves composing the stochastic gravitational wave background (SGWB) are uncorrelated between frequencies in analyses of the data from Pulsar Timing Arrays (PTAs). While individual monochromatic plane waves […]


Continue.. Testing Gravity with Realistic Gravitational Waveforms in Pulsar Timing Arrays

Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Kavli Affiliate: Ran Wang | First 5 Authors: Cheng Xu, Changtian Zhang, Yuchen Shi, Ran Wang, Shihong Duan | Summary: Recent advancements in reinforcement learning have made significant impacts across various domains, yet they often struggle in complex multi-agent environments due to issues like algorithm instability, low sampling efficiency, and the challenges of exploration and […]


Continue.. Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Kavli Affiliate: Ran Wang | First 5 Authors: Cheng Xu, Changtian Zhang, Yuchen Shi, Ran Wang, Shihong Duan | Summary: Recent advancements in reinforcement learning have made significant impacts across various domains, yet they often struggle in complex multi-agent environments due to issues like algorithm instability, low sampling efficiency, and the challenges of exploration and […]


Continue.. Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Kavli Affiliate: Ran Wang | First 5 Authors: Cheng Xu, Changtian Zhang, Yuchen Shi, Ran Wang, Shihong Duan | Summary: Recent advancements in reinforcement learning have made significant impacts across various domains, yet they often struggle in complex multi-agent environments due to issues like algorithm instability, low sampling efficiency, and the challenges of exploration and […]


Continue.. Subgoal-based Hierarchical Reinforcement Learning for Multi-Agent Collaboration

Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Sarah N. T. Heine, Herman L. Marshall, Benjamin Schneider, Beverly Lamar, Nithya Kothnur | Summary: The MIT X-ray Polarimetry Beamline is a facility that we developed for testing components for possible use in X-ray polarimetry. Over the past few years, we have demonstrated that the X-ray […]


Continue.. Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Sarah N. T. Heine, Herman L. Marshall, Benjamin Schneider, Beverly Lamar, Nithya Kothnur | Summary: The MIT X-ray Polarimetry Beamline is a facility that we developed for testing components for possible use in X-ray polarimetry. Over the past few years, we have demonstrated that the X-ray […]


Continue.. Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Sarah N. T. Heine, Herman L. Marshall, Benjamin Schneider, Beverly Lamar, Nithya Kothnur | Summary: The MIT X-ray Polarimetry Beamline is a facility that we developed for testing components for possible use in X-ray polarimetry. Over the past few years, we have demonstrated that the X-ray […]


Continue.. Characterization of X-ray Detectors in the MIT X-ray Polarimetry Beamline

An FUV-detected Accretion Shock at the Star-Disk Boundary of FU Ori

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Adolfo S. Carvalho, Lynne A. Hillenbrand, Kevin France, Gregory J. Herczeg, | Summary: FU Ori objects are the most extreme eruptive young stars known. Their 4 to 5 magnitude photometric outbursts last for decades and are attributed to a factor of up to 10,000 increase in […]


Continue.. An FUV-detected Accretion Shock at the Star-Disk Boundary of FU Ori

On the kinematic nature of apparent discs at high redshifts: Local counterparts are not dominated by ordered rotation but by tangentially anisotropic random motion

Kavli Affiliate: Yingjie Peng | First 5 Authors: Bitao Wang, Yingjie Peng, Michele Cappellari, Hua Gao, Houjun Mo | Summary: It is not straightforward to physically interpret the apparent morphology of galaxies. Recent observations by James Webb Space Telescope (JWST) revealed a dominant galaxy population at high redshifts ($z>2$) that were visually classified as discs […]


Continue.. On the kinematic nature of apparent discs at high redshifts: Local counterparts are not dominated by ordered rotation but by tangentially anisotropic random motion