Tootfinder

The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo
Vinicius M. Placco, Guilherme Limberg, Anirudh Chiti, Deepthi S. Prabhu, Alexander P. Ji, Fabr\'icia O. Barbosa, William Cerny, Andrew B. Pace, Guy S. Stringfellow, David J. Sand, Clara E. Mart\'inez-V\'azquez, Alexander H. Riley, Silvia Rossi, Noelia E. D. No\"el, A. Katherina Vivas, Gustavo E. Medina, Alex Drlica-Wagner, Joanna D. Sakowska, Bur\c{c}in Mutlu-Pakd…

The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-Poor Stars in the Distant Milky Way Halo
In this work, we present high-resolution spectroscopic observations for six metal-poor stars with [Fe/H]<-3 (including one with [Fe/H]<-4), selected using narrow-band Ca II HK photometry from the DECam MAGIC Survey. The spectroscopic data confirms the accuracy of the photometric metallicities and allows for the determination of chemical abundances for 16 elements, from carbon to barium. The program stars have chemical abundances consistent with this metallicity range. A kinematic/dynamical anal…

Richard David #Precht dilettiert in der #taz zur Weltordnung 🤣
„Ich habe mich noch nie vor Russen gefürchtet“ meint er. Das ist wirklich eine über alles dämliche Aussage, zumal für einen, der sich selbst Philosoph nennt.
Er ist in der Philosophie das, was

SuperSONIC: Cloud-Native Infrastructure for ML Inferencing
Dmitry Kondratyev, Benedikt Riedel, Yuan-Tang Chou, Miles Cochran-Branson, Noah Paladino, David Schultz, Mia Liu, Javier Duarte, Philip Harris, Shih-Chieh Hsu
https://arxiv.org/abs/2506.20657

SuperSONIC: Cloud-Native Infrastructure for ML Inferencing
The increasing computational demand from growing data rates and complex machine learning (ML) algorithms in large-scale scientific experiments has driven the adoption of the Services for Optimized Network Inference on Coprocessors (SONIC) approach. SONIC accelerates ML inference by offloading it to local or remote coprocessors to optimize resource utilization. Leveraging its portability to different types of coprocessors, SONIC enhances data processing and model deployment efficiency for cuttin…

Ranked choice voting expansion in Maine sent to Gov. Mills
Proponents say a court case in Alaska casts doubt on a Maine Law Court advisory opinion that the voting method violates the Maine Constitution
https://www.pressherald.com/2025/06/18/ran

A new window into the sub-parsec scale magnetic field in the Milky Way? Unveiling small-scale magneto-ionic structures with Faraday complexity
Yik Ki Ma, Amit Seta, N. M. McClure-Griffiths, C. L. Van Eck, S. A. Mao, A. Ordog, J. C. Brown, T. O. Kovacs, Takuya Akahori, K. Kurahara, L. Oberhelman, C. S. Anderson
https://arxiv.org/…

A new window into the sub-parsec scale magnetic field in the Milky Way? Unveiling small-scale magneto-ionic structures with Faraday complexity
Radio broadband spectro-polarimetric observations are sensitive to the spatial fluctuations of the Faraday depth (FD) within the telescope beam. Such FD fluctuations are referred to as "Faraday complexity", and can unveil small-scale magneto-ionic structures in both the synchrotron-emitting and the foreground volumes. We explore the astrophysical origin of the Faraday complexity exhibited by 191 polarised extragalactic radio sources (EGSs) within 5 deg from the Galactic plane in the longitude r…

Break-in reported at home of slain Minnesota state Rep. Melissa Hortman (David K. Li/NBC News)
https://www.nbcnews.com/news/us-news/break-reported-home-slain-minnesota-state-rep-melissa-hortman-rcna213780
http://www.memeorandum.com/250618/p109#a250618p109

Systematic non-thermal velocity increase preceding soft X-ray flare onset
Andy S. H. To, Abigail Burden, Deborah Baker, Henrik Eklund, David H. Brooks, Laura A. Hayes, Juan Mart\'inez-Sykora, Paola Testa, Jeffrey Reep, Miho Janvier, Shinsuke Imada, Julio Hernandez Camero, David M. Long, Teodora Mihailescu, Micah J. Weberg
https://

Systematic non-thermal velocity increase preceding soft X-ray flare onset
Non-thermal velocities, derived from spectral line broadening, can provide crucial insights into plasma dynamics before and during solar flares. To systematically study the pre-flare phase, we constructed a Hinode/Extreme-ultraviolet Imaging Spectrometer (EIS) flare catalog of 1,449 flares from 2011-2024. This enabled a large-scale analysis of flare loop footpoint non-thermal velocity evolution across different flare magnitudes (C, M, X-classes). Analyzing Fe VIII - Fe XXIV emission lines forme…

Nonequilibrium orders in parametrically driven field theories
Carl Philipp Zelle, Romain Daviet, Andrew J. Millis, Sebastian Diehl
https://arxiv.org/abs/2506.18622

Nonequilibrium orders in parametrically driven field theories
Driving quantum materials with coherent light has proven a powerful platform to realize a plethora of interesting phases and transitions, ranging from ferroelectricity to superconductivity and limit cycles in pumped magnonics. In this paper we develop the field theoretical framework to describe nonequilibrium phases that emerge in systems pumped by rapid parametric drives. We consider paradigmatic O(N) models that describe the long-wavelength fluctuations of ordering fields in many condensed ma…

Dynamics of tidal spiral arms: Machine learning-assisted identification of equations and application to the Milky Way
Marcel Bernet, Pau Ramos, Teresa Antoja, Adrian Price-Whelan, Steven L. Brunton, Tetsuro Asano, Alexandra Gir\'on-Soto
https://arxiv.org/abs/2506.17383

Dynamics of tidal spiral arms: Machine learning-assisted identification of equations and application to the Milky Way
Understanding the spiral arms of the Milky Way (MW) remains a key open question in galactic dynamics. Tidal perturbations, such as the recent passage of the Sagittarius dwarf galaxy (Sgr), could play a significant role in exciting them. We aim to analytically characterize the dynamics of tidally induced spiral arms, including their phase-space signatures. We ran idealized test-particle simulations resembling impulsive satellite impacts, and used the Sparse Identification of Non-linear Dynamics …

"White House deputy chief of staff Stephen Miller says President Donald Trump is looking for ways to expand its legal power to deport migrants who are in the United States illegally. To achieve that, he says the administration is “actively looking at” suspending habeas corpus, . ."

Trump team mulls suspending habeas corpus to speed deportations. Can it?
Top White House aide Stephen Miller says the Trump administration is looking for ways to expand its legal power to deport migrants who are in the United States illegally. To achieve that, he says President Donald Trump’s team is “actively looking at” suspending habeas corpus, the constitutional right for people to legally challenge their detention by the government. Such a move would be aimed at migrants as part of the Republican president’s broader crackdown at the U.S.-Mexico border. …