Tootfinder

Argus: JAX state-space filtering for gravitational wave detection with a pulsar timing array
Tom Kimpson, Nicholas J. O'Neill, Patrick M. Meyers, Andrew Melatos
https://arxiv.org/abs/2510.11077

Argus: JAX state-space filtering for gravitational wave detection with a pulsar timing array
Argus is a high-performance Python package for detecting and characterising nanohertz gravitational waves in pulsar timing array data. The package provides a complete Bayesian inference framework based on state-space models, using Kalman filtering for efficient likelihood evaluation. Argus leverages JAX for just-in-time compilation, GPU acceleration, and automatic differentiation, facilitating rapid Bayesian inference with gradient-based samplers. The state-space approach provides a computation…

Delving into the depths of NGC 3783 with XRISM - birth of an ultrafast outflow during a soft flare: #BlackHole outburst observed similar to outbursts on the Sun / Flaring black hole whips up ultra-fast winds: https://www.sron.nl/en/actueel/eruptie-zwart-gat-waargenomen-vergelijkbaar-met-zonne-uitbarstingen/ / https://www.esa.int/Science_Exploration/Space_Science/XMM-Newton/Flaring_black_hole_whips_up_ultra-fast_winds

A quantitative performance analysis of two different interferometric alignment sensing schemes for gravitational wave detectors
Raed Diab, Alvaro Herrera, Chance Jackson, Paul Fulda
https://arxiv.org/abs/2510.09774

A quantitative performance analysis of two different interferometric alignment sensing schemes for gravitational wave detectors
Precise laser alignment in optical cavities is essential for high-precision laser interferometry. We report on a table-top optical experiment featuring two alignment sensing schemes: the conventional Wavefront Sensing (WFS) scheme which uses quadrant photodetectors (QPDs) to recover optical alignment, and the newly developed Radio Frequency Jitter Alignment Sensing (RFJAS) scheme, which uses an electro-optic beam deflector (EOBD) to apply fast angular modulation. This work evaluates the perform…

Fully Relativistic Treatment of Extreme Mass-Ratio Inspirals in Collisionless Environments: #GravitationalWaves: https://iop.uva.nl/content/news/2025/12/decoding-dark-matters-imprint-on-black-hole-gravitational-waves.html

Suddenly... President Trump Called John's Cell (James Flippin/77 WABC)
https://wabcradio.com/2025/12/26/suddenly-president-trump-called-johns-cell/
http://www.memeorandum.com/251228/p30#a251228p30

plant_pol_vazquez: Vazquez & Simberloff plant-pollinator webs
Eight bipartite networks of plants and pollinators, from the Nahuel Huapi National Park and surrounding areas in Rio Negro, Argentina, from September 1999 to Feburary 2000. Edge weights represent the frequency of species interaction, and there is a common set of vertices across all eight webs.
This network has 144 nodes and 42 edges.
Tags: Biological, Food web, Weighted, Multilayer

plant_pol_vazquez: Vazquez & Simberloff plant-pollinator webs
Eight bipartite networks of plants and pollinators, from the Nahuel Huapi National Park and surrounding areas in Rio Negro, Argentina, from September 1999 to Feburary 2000. Edge weights represent the frequency of species interaction, and there is a common set of vertices across all eight webs.
This network has 144 nodes and 51 edges.
Tags: Biological, Food web, Weighted, Multilayer

plant_pol_vazquez: Vazquez & Simberloff plant-pollinator webs
Eight bipartite networks of plants and pollinators, from the Nahuel Huapi National Park and surrounding areas in Rio Negro, Argentina, from September 1999 to Feburary 2000. Edge weights represent the frequency of species interaction, and there is a common set of vertices across all eight webs.
This network has 144 nodes and 31 edges.
Tags: Biological, Food web, Weighted, Multilayer

plant_pol_vazquez: Vazquez & Simberloff plant-pollinator webs
Eight bipartite networks of plants and pollinators, from the Nahuel Huapi National Park and surrounding areas in Rio Negro, Argentina, from September 1999 to Feburary 2000. Edge weights represent the frequency of species interaction, and there is a common set of vertices across all eight webs.
This network has 144 nodes and 31 edges.
Tags: Biological, Food web, Weighted, Multilayer

plant_pol_vazquez: Vazquez & Simberloff plant-pollinator webs
Eight bipartite networks of plants and pollinators, from the Nahuel Huapi National Park and surrounding areas in Rio Negro, Argentina, from September 1999 to Feburary 2000. Edge weights represent the frequency of species interaction, and there is a common set of vertices across all eight webs.
This network has 144 nodes and 36 edges.
Tags: Biological, Food web, Weighted, Multilayer