Results 61 to 70 of about 48,316 (185)
Revolutionary Ideas for Radio Regulation [PDF]
arXiv, 2003 Radio technology seems destined to become part of the standard micro-processor input/output system. But unlike for memory or display systems, for radio systems government regulation matters a lot. Much discussion of radio regulation has focused on narrow spectrum management and interference issues.
arxiv
Why Schonland Failed in His Search for Runaway Electrons From Thunderstorms
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 10, 28 May 2025.Abstract B.F.J. Schonland, advised and encouraged by C.T.R. Wilson, made two unsuccessful searches for runaway electrons from thunderstorms in the 1930s. These findings stand in marked contrast with research results over the last decade and ironically set this field of research back many decades.
A. Chilingarian +3 more
wiley +1 more source
Radio Continuum Emission from the Nuclei of Normal Galaxies [PDF]
Highlights of Astronomy, 1980 During the last few years detailed and sensitive observations of the radio emission from the nuclei of many normal spiral galaxies has become available. Observations from the Very Large Array (VLA) of the National Radio Astronomy Observatory (NRAO1), in particular, enable us to distinguish details on a scale of ≤100 pc for galaxies at distances less ...
openaire +2 more sources
Radio Observations of 4079 Quasars [PDF]
, 1997 Using the NVSS radio catalog, we have searched for radio emission from 4079 quasars taken from the 1996 version of the Veron-Cetty and Veron (1996) quasar catalog. The comparison resulted in the positive detection of radio emission from 799 quasars. Of these, 168 are new radio detections.
arxiv +1 more source
ChemCatChem, Volume 17, Issue 10, May 22, 2025.This article demonstrates how the Galaxy workflow environment and RO‐Crates facilitate alignment with FAIR principles for catalysis research data. Selected XAS examples illustrate how packaged data can be produced directly from processing and analysis, enhancing reproducibility and replicability. This approach improves current data management practices,
Abraham Nieva‐de‐la‐Hidalga +8 more
wiley +1 more source
The Large-Scale Radio Continuum Structure of Spiral Galaxies [PDF]
Symposium - International Astronomical Union, 1978 This review concerns the large-scale structure of radio continuum emission in spiral galaxies (“the smooth background”), by which we mean the distribution of radio surface brightness at scales larger than, say, 1 kpc. Accordingly the nuclear emission and structure due to spiral arms and HII regions will not be a major topic of discussion here.
openaire +2 more sources
Radio, optical and X-ray nuclei in nearby 3CRR radio galaxies [PDF]
, 1999 HST observations have shown that low-redshift 3CR radio galaxies often exhibit a point-like optical component positionally coincident with the GHz-frequency radio core. In this paper we discuss the correlation between the luminosities of the radio, optical and X-ray cores in these objects, and argue that all three components have a common origin at the
arxiv +1 more source
Journal of Geophysical Research: Space Physics, Volume 130, Issue 5, May 2025.Abstract This comprehensive study focuses on interannual oscillations from 1 to 25 years in the F, E, and D region ionosphere. By leveraging longterm (1960–2018) continuous ground‐based ionosonde and phase height measurements in northern Germany, we have identified the peak periods and temporal variations of these oscillations using advanced analysis ...
Mani Sivakandan +5 more
wiley +1 more source
Revisit the fraction of radio-loud narrow line Seyfert 1 galaxies with LoTSS DR1 [PDF]
arXiv, 2020 Radio-Loud narrow-line Seyfert 1 galaxies (NLS1s), especially the extremely radio-loud ones, are widely accepted as the jetted versions of NLS1s. We explore the radio-loud fraction for NLS1s with recently released LoTSS DR1 at 150 MHz. The radio detection rate is about 28\% for LoTSS DR1.
arxiv
Radio continuum emission from a tidal dwarf galaxy
Monthly Notices of the Royal Astronomical SocietyABSTRACT Tidal dwarf galaxies (TDGs) form in the debris of galaxy mergers, making them ideal testbeds for investigating star formation in an extreme environment. We present radio continuum EVLA observations spanning 1–2 GHz of the interacting system Arp 94, which contains the TDG J1023+1952.
Blanca M Moncada-Cuadri +3 more
openaire +3 more sources