Tootfinder

Managing, Analyzing and Sharing Research Data with Gen3 Data Commons
Craig Barnes, Kyle Burton, Michael S. Fitzsimons, Hara Prasad Juvvala, Brienna Larrick, Christopher Meyer, Pauline Ribeyre, Ao Liu, Clint Malson, Noah Metoki-Shlubsky, Andrii Prokhorenkov, Jawad Qureshi, Radhika Reddy, L. Philip Schumm, Mingfei Shao, Trevar Simmons, Alexander VanTol, Peter Vassilatos, Aarti Venkat, Robert L. Grossman

Managing, Analyzing and Sharing Research Data with Gen3 Data Commons
Gen3 is an open-source data platform for building data commons. A data commons is a cloud-based data platform for managing, analyzing, and sharing data with a research community. Gen3 has been used to build over a dozen data commons that in aggregate contain over 28 PB of data and 64 million FAIR data objects. To set up a Gen3 data commons, you first define a data model. Gen3 then autogenerates 1) a data portal for searching and exploring data in the commons; 2) a data portal for submitting dat…

Probing Thin Winds in Massive OB Stars of the SMC with JWST/NIRSPEC Br-alpha Spectroscopy
Miriam Garcia, Alexander W. Fullerton, Francisco Najarro, Joachim Puls, Daniel J. Lennon, Jean-Claude Bouret, Christopher J. Evans, Margaret Hanson, Artemio Herrero, D. John Hillier, Alexandre Legault, Mar\'ia del Mar Rubio-D\'iez, Sergio Sim\'on-D\'iaz, Jon O. Sundqvist, Frank Tramper

Probing Thin Winds in Massive OB Stars of the SMC with JWST/NIRSPEC Br-alpha Spectroscopy
Mass loss is a key physical process in the evolution of massive stars, the impact of which propagates into galactic evolution, population synthesis models, the interpretation of high-redshift galaxies, and explosive events such as supernovae. However, there are currently substantial uncertainties in the low-metallicity, low-luminosity thin wind regime where classical diagnostics (H-alpha and ultraviolet, UV, P Cygni profiles) yield wind momenta that are 1 to 2 orders of magnitude below prescrip…

Wavelength-tunable femtosecond pulsed laser for the characterisation of solid-state sensors
Enoch Ejopu, Oscar Augusto de Aguiar Francisco, Nawal Al Amairi, Huazhen Li, Marco Gersabeck, Alexander Oh, Christopher Parkes, Patrick Parkinson, Francisca Munoz Sanchez, Charles Smith
https://arxiv.org/abs/2509.01546…

Wavelength-tunable femtosecond pulsed laser for the characterisation of solid-state sensors
The Two-Photon Absorption (TPA) process provides an excellent method for the characterisation of solid-state sensors due to its intrinsic 3D resolution for the excitation of electron-hole pairs. This paper presents the commissioning of a system composed of a Light Conversion PHAROS laser read out with an ORPHEUS optical parametric amplifier with tuneable output wavelength across $310-16000$~nm. This is one of the few facilities suitable for particle physics detector applications with a very wid…

The Concordance of Weak Lensing and Escape Velocity Mass Estimates for Galaxy Clusters
Alexander Rodriguez, Christopher J. Miller
https://arxiv.org/abs/2507.20938 https://

The Concordance of Weak Lensing and Escape Velocity Mass Estimates for Galaxy Clusters
In the $Λ$CDM paradigm, the masses of the galaxy clusters inferred using background galaxies via weak-lensing shear should agree with the masses measured using the galaxy projected radius-velocity phase-space data via the escape velocity profile. However, prior work indicates that the correlation between caustic-inferred escape masses and weak lensing masses is statistically consistent with zero. Based on recent advancements in the measurement of the escape edge and its physical interpretation…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Antonio Vivaldi, Meyrick Alexander, London Chamber Orchestra & Christopher Warren‐Green:
🎵 Bassoon Concerto in B-Flat Major, RV 502: I. Allegro
#AntonioVivaldi
https://open.spotify.com/track/7yds0K6qs4FSlcg3rGgIEy

JEDI-linear: Fast and Efficient Graph Neural Networks for Jet Tagging on FPGAs
Zhiqiang Que, Chang Sun, Sudarshan Paramesvaran, Emyr Clement, Katerina Karakoulaki, Christopher Brown, Lauri Laatu, Arianna Cox, Alexander Tapper, Wayne Luk, Maria Spiropulu
https://arxiv.org/abs/2508.15468

JEDI-linear: Fast and Efficient Graph Neural Networks for Jet Tagging on FPGAs
Graph Neural Networks (GNNs), particularly Interaction Networks (INs), have shown exceptional performance for jet tagging at the CERN High-Luminosity Large Hadron Collider (HL-LHC). However, their computational complexity and irregular memory access patterns pose significant challenges for deployment on FPGAs in hardware trigger systems, where strict latency and resource constraints apply. In this work, we propose JEDI-linear, a novel GNN architecture with linear computational complexity that e…

Experiences with Model Context Protocol Servers for Science and High Performance Computing
Haochen Pan, Ryan Chard, Reid Mello, Christopher Grams, Tanjin He, Alexander Brace, Owen Price Skelly, Will Engler, Hayden Holbrook, Song Young Oh, Maxime Gonthier, Michael Papka, Ben Blaiszik, Kyle Chard, Ian Foster
https://arxiv.org/abs/2508.18489

Experiences with Model Context Protocol Servers for Science and High Performance Computing
Large language model (LLM)-powered agents are increasingly used to plan and execute scientific workflows, yet most research cyberinfrastructure (CI) exposes heterogeneous APIs and implements security models that present barriers for use by agents. We report on our experience using the Model Context Protocol (MCP) as a unifying interface that makes research capabilities discoverable, invokable, and composable. Our approach is pragmatic: we implement thin MCP servers over mature services, includi…

Roadmap towards Personalized Approaches and Safety Considerations in Non-Ionizing Radiation: From Dosimetry to Therapeutic and Diagnostic Applications
Ilkka Laakso, Margarethus Marius Paulides, Sachiko Kodera, Seungyoung Ahn, Christopher L. Brace, Marta Cavagnaro, Ji Chen, Zhi-De Deng, Valerio De Santis, Yinliang Diao, Lourdes Farrugia, Mauro Feliziani, Serena Fiocchi, Francesco Fioranelli, Takashi Hikage, Sergey Makaroff, Maya Mizuno, Alexander Opitz, Emma Pickwell-MacPherson, Punit P…

Roadmap towards Personalized Approaches and Safety Considerations in Non-Ionizing Radiation: From Dosimetry to Therapeutic and Diagnostic Applications
This roadmap provides a comprehensive and forward-looking perspective on the individualized application and safety of non-ionizing radiation (NIR) dosimetry in diagnostic and therapeutic medicine. Covering a wide range of frequencies, i.e., from low-frequency to terahertz, this document provides an overview of the current state of the art and anticipates future research needs in selected key topics of NIR-based medical applications. It also emphasizes the importance of personalized dosimetry, r…

Enhancement of Indistinguishable Photon Emission from a GaAs Quantum Dot via Charge Noise Suppression
Priyabrata Mudi, Avijit Barua, Kartik Gaur, Steffen Wilksen, Alexander Steinhoff, Setthanat Wijitpatima, Sarthak Tripathi, Julian Ritzmann, Andreas D. Wieck, Sven Rodt, Christopher Gies, Arne Ludwig, Stephan Reitzenstein
https://

Enhancement of Indistinguishable Photon Emission from a GaAs Quantum Dot via Charge Noise Suppression
The generation of indistinguishable single photons is a fundamental requirement for future quantum technologies, particularly in quantum repeater networks and for distributed quantum computing based on entanglement distribution. However, spectral jitter, often induced by charge noise in epitaxial quantum dots, leads to exciton dephasing, thereby limiting their practical usage in quantum applications. We present a straightforward approach to mitigate charge noise-induced decoherence in droplet-e…

Bidirectional anisotropic solar energetic particle events observed by Solar Orbiter
Zheyi Ding, Robert F. Wimmer-Schweingruber, Yu Chen, Lingling Zhao, Alexander Kollhoff, Patrick K\"uhl, Liu Yang, Lars Berger, Verena Heidrich-Meisner, Javier Rodriguez-Pacheco, George C. Ho, Glenn M. Mason, Gang Li, Tom\'a\v{s} Form\'anek, Christopher J. Owen
https…

Bidirectional anisotropic solar energetic particle events observed by Solar Orbiter
Solar Energetic Particle (SEP) events are critical for understanding particle acceleration and transport in the heliosphere. While most SEP events involve outward streaming particles along open magnetic field lines, bidirectional events characterized by simultaneous sunward and anti-sunward particle flows offer unique insights into magnetic field topology and the interplay of multiple acceleration sources. We aim to investigate the origin and transport of energetic particles in two rare bidirec…

Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation
Andrew Wetzel, Jenna Samuel, Pratik J. Gandhi, Sam B. Ponnada, Kung-Yi Su, Arpit Arora, Daniel Angles-Alcazar, Christopher C. Hayward, Robyn E. Sanderson, Robert Feldmann, Rachel Cochrane, Farnik Nikakhtar, Nondh Panithanpaisal, Jose A. Benavides, Viraj Pandya, Mike Grudic, Cameron Hummels, Alexander B. Gurvich, Zachary Hafen, Xiangcheng Ma, Shea Garrison-Kimmel, Omid Sameie, T. K Chan, Kareem…

Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation
We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available at http://flathub.flatironinstitute.org/fire. DR2 includes all snapshots for most simulations, starting at z ~ 99, with all snapshot time spacings <~ 25 Myr. The Core suite -- comprising 14 Milky Way-mass galaxies, 5 SMC/LMC-mass galaxies, and 4 lower-mass galaxies -- includes 601 snapshots to z = 0. For the Core suit…

🇺🇦 #NowPlaying on BBCRadio3's #Breakfast
Wolfgang Amadeus Mozart, Michael Collins, Gordon Hunt, Meyrick Alexander, Michael Thompson, London Chamber Orchestra & Christopher Warren‐Green:
🎵 Sinfonia Concertante E-Flat, K. 297b (3rd mvt)
#WolfgangAmadeusMozart #GordonHunt