Results 81 to 90 of about 38,432,328 (304)
Advanced Science, EarlyView.The symmetry‐driven coexistence of altermagnetism and (anti)ferroelectricity in perovskites shows a strong dimensional dependence. Upon reducing the system from bulk to the two‐dimensional limit, only C‐type antiferromagnetic order retains ferroelectrically switchable altermagnetism, whereas A‐ and G‐type orders become conventional antiferromagnets ...
Zhou Cui +6 more
wiley +1 more source
Benchmarking Dimensionality Reduction Methods for High-dimensional ALMA Image Cubes
The Astronomical JournalHigh-dimensional astronomical data cubes provide a wealth of spectral and structural information that can be used to study astrophysical and chemical processes.
Haley N. Scolati +3 more
doaj +1 more source
A Study of Babylonian Goal-Year Planetary Astronomy [PDF]
, 2009 Throughout the Late Babylonian Period, Mesopotamian astronomers made nightly observations of the planets, Moon and stars. Based on these observations, they developed several different techniques for predicting future astronomical events.
GRAY, JENNIFER,MARY,KNIGHTLEY +1 more
core
Research on teaching astronomy in the planetarium
, 2017 From a noted specialist in astronomy education and outreach, this Brief provides an overview of the most influential discipline-based science education research literature now guiding contemporary astronomy teaching.
Tatge, Coty B +5 more
core +1 more source
Advanced Science, EarlyView.Combining template stripping with a graphene‐inspired transfer yields continuous, transferable gold films at 6‐inch wafer scale with thicknesses approaching the atomic limit. The atomically smooth, near‐bulk‐quality films offer above 86% transmittance and sub‐20 Ω/square sheet resistance, serving as a universal platform for flexible optoelectronics ...
Dmitry Yakubovsky +24 more
wiley +1 more source
The Early Data Release of the Dark Energy Spectroscopic Instrument
The Astronomical JournalThe Dark Energy Spectroscopic Instrument (DESI) completed its 5 month Survey Validation in 2021 May. Spectra of stellar and extragalactic targets from Survey Validation constitute the first major data sample from the DESI survey. This paper describes the
DESI Collaboration +269 more
doaj +1 more source
Markov Chain Monte Carlo Methods for Bayesian Data Analysis in Astronomy [PDF]
Annual Review of Astronomy and Astrophysics, 2017 Markov chain Monte Carlo–based Bayesian data analysis has now become the method of choice for analyzing and interpreting data in almost all disciplines of science. In astronomy, over the past decade, we have also seen a steady increase in the number of papers that employ Monte Carlo–based Bayesian analysis.
openaire +2 more sources
Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2
Advanced Science, EarlyView.Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding +10 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesReal-time processing of ultra-wideband signals requires dividing them into several subbands by using a channelizer filter such as a polyphase filter bank. Original channelizers, like the critically sampling polyphase filter bank (CSPFB), face issues such
Shaocong Guo +7 more
doaj +1 more source
CIAO: Chandra’s Data Analysis System for X-Ray Astronomy and Beyond
The Astrophysical JournalAbstract The Chandra Interactive Analysis of Observations (CIAO) software, developed by the Chandra X-ray Center, has been the data analysis package for the Chandra X-ray Observatory since its launch in 1999. Over nearly three decades, CIAO has grown from a small software suite into a widely used system for X-ray data analysis and ...
Antonella Fruscione +15 more
openaire +2 more sources