Frequency-dependent time-delays for strong outbursts in selected blazars from the Metsähovi and the University of Michigan Radio Astronomy Observatory monitoring databases – I. [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 The combined data of the University of Michigan Radio Astronomy Observatory and Metsahovi Radio Observatory provide us with radio light curves for active galactic nuclei monitored by both observatories from 4.8 to 37 GHz covering time-intervals up to ∼25 yr.
Pyatunina, T. B. +6 more
openaire +2 more sources
The Astrophysical Journal Supplement SeriesThis paper proposes a spectral transformer encoder (SpecTE) model based on a denoising pretraining technique, and applies it to estimating radial velocity (RV) and three stellar atmospheric physical parameters together with 15 chemical element abundances
Xirong Zhao +3 more
doaj +1 more source
Big Data in Astronomy: Surveys, Catalogs, Databases and Archives
Communications of the Byurakan Astrophysical Observatory, 2020 We present the modern situation in astronomy, where Big Data coming from the Universe put new tasks for catalogizing, storage, archiving, analysis and usage of the scientific information. The two major characteristics of modern astronomy are multiwavelength (MW) studies (from γ-ray to radio, as well as multi-messenger studies, using also neutrinos ...
openaire +1 more source
Organic Materials of Tomorrow: Horizons of Artificial Intelligence
Advanced Materials, EarlyView.This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena +3 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesVersion 4.00 of the library of computed spectra of the NASA Ames PAH IR Spectroscopic Database (PAHdb) includes an expanded set of polycyclic aromatic hydrocarbon (PAH) spectra, totaling 10,749, calculated using the harmonic approximation and a basis set
A. Ricca +6 more
doaj +1 more source
Design Principles for Fluid Molecular Ferroelectrics
Advanced Materials, EarlyView.A major challenge for soft condensed matter is predicting whether a fluid molecular material will form ferroelectric phase with nematic or smectic order. Through systematic synthesis, and by analogy to solid molecular ferroelectrics, it is shown that subtle hydrogen–fluorine (H/F) substitution(s) allows for tuneable syn‐parallel pairing motifs ...
Calum J. Gibb +3 more
wiley +1 more source
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +1 more source
The JCMT Legacy Release: SCUBA-2 850 μm Coadds and Catalogs
The Astrophysical Journal Supplement SeriesWe present the James Clerk Maxwell Telescope (JCMT) 850 μ m Legacy Release, containing uniformly reduced, coadded tiles, and catalogs of detected emission, for the 850 μ m data from all Submillimetre Common User Bolometer Array 2 (SCUBA-2) observations ...
Sarah F. Graves +15 more
doaj +1 more source
Advanced Science, EarlyView.This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang +13 more
wiley +1 more source
Firmamento: A Multimessenger Astronomy Tool for Citizen and Professional Scientists
The Astronomical JournalFirmamento ( https://firmamento.hosting.nyu.edu ) is a new-concept, web-based, and mobile-friendly data analysis tool dedicated to multifrequency/multimessenger emitters, as exemplified by blazars.
Dhurba Tripathi +14 more
doaj +1 more source