Tootfinder

a big chunk of the #PurdueFortWayne 🐘 campus is closed right now while some Fox News host is visiting
https://www.mobilize.us/indivisible/event/869215/

Enhanced Pebble Drift Across Planet-Opened Gaps in Windy Protoplanetary Disks
Lorraine Nicholson, Jaehan Bae
https://arxiv.org/abs/2510.07428 https://arxiv…

Enhanced Pebble Drift Across Planet-Opened Gaps in Windy Protoplanetary Disks
When a giant planet forms in a protoplanetary disks, it carves a gap around its orbit separating the disk into two parts: inner disk and outer disk. Traditional disk accretion models, which assume material transport is driven by viscosity, reveal that the planet-induced gap acts like a filter which blocks large dust grains from flowing into the inner disk. However, there is growing evidence that material transport may be driven by magnetically-driven winds instead. By carrying out a suite of tw…

With all the bad news in the world, there are things that give #hope. For example, the fact that #Germans and #Austrians can go to

Atmospheric pion, kaon, and muon fluxes for sub-orbital experiments
Diksha Garg, Laksha Pradip Das, Mary Hall Reno
https://arxiv.org/abs/2510.03428 https://

Atmospheric pion, kaon, and muon fluxes for sub-orbital experiments
Cosmic rays interacting with the Earth's atmosphere generate extensive air showers, which produce Cherenkov, fluorescence and radio emissions. These emissions are key signatures for detection by ground-based, sub-orbital, and satellite-based telescopes aiming to study high energy cosmic ray and neutrino events. However, detectors operating at ground and balloon altitudes are also exposed to a background of atmospheric charged particles, primarily pions, kaons, and muons, that can mimic or obscu…

Distributed Coherent Beamforming at 60 GHz Enabled by Optically-Established Coherence
Drake Silbernagel, Yu Rong, Isabella Lenz, Prithvi Hemanth, Carl Morgenstern, Owen Ma, Nolan Matthews, Nader Zaki, Kyle W. Martin, John D. Elgin, Jacob Holtom, Daniel W. Bliss, Kimberly Frey
https://arxiv.org/abs/2509.13984

Distributed Coherent Beamforming at 60 GHz Enabled by Optically-Established Coherence
We implement and experimentally demonstrate a 60 GHz distributed system leveraging an optical time synchronization system that provides precise time and frequency alignment between independent elements of the distributed mesh. Utilizing such accurate coherence, we perform receive beamforming with interference rejection and transmit nulling. In these configurations, the system achieves a coherent gain over an incoherent network of N nodes, significantly improving the relevant signal power ratios…

Ultracompact Wide-FOV Near-infrared Camera with Wafer-level Manufactured Meta-Aspheric Lens
Chuirong Chi, Qichao Hou, Guangyuan Zhao, Qiang Song, Shengyuan Xu, Yanling Piao, Mengjie Qin, Yanan Hu, Chaoping Chen, Weiwei Cai, Yuan Chen, Xin Yuan, Huigao Duan
https://arxiv.org/abs/2509.23599

Ultracompact Wide-FOV Near-infrared Camera with Wafer-level Manufactured Meta-Aspheric Lens
Overcoming the trade-off between wide field of view (FOV) and compactness remains a central challenge for integrating near-infrared (NIR) imaging into smartphones and AR glasses. Existing refractive NIR optics cannot simultaneously achieve ultra-wide angles above 100° and ultrathin total track length (TTL) below 5 mm, limiting their use in portable devices. Here, we present a wafer-level-manufactured meta-aspheric lens (MAL) that achieves a 101.5° FOV, 3.39 mm TTL, and F/1.64 aperture within …