Results 161 to 170 of about 132,038 (243)
Recurrent radio activity in active galactic nuclei
EPJ Web of Conferences, 2012 There has been a growing body of persuasive evidence to indicate that AGN activity, powered by mass accretion onto a supermassive black hole, can involve multiple episodes.
Jamrozy M.
doaj +1 more source
On the connection between giant radio halos and cluster mergers
, 2010 The frequently observed association between giant radio halos and merging galaxy clusters has driven present theoretical models of non-thermal emission from galaxy clusters, which are based on the idea that the energy dissipated during cluster-cluster ...
Brunetti +9 more
core +1 more source
Neutron Monitor Based Incoming Flux Correction for Cosmic‐Ray Neutron Sensing of Environmental Water
Water Resources Research, Volume 61, Issue 9, September 2025.Abstract Monitoring of near‐surface water content with cosmic‐ray neutrons is strongly dependent on heliospheric and geomagnetic conditions. Neutron monitor (NM) stations are commonly used as a reference for the incoming cosmic radiation to correct the hydrological neutron signal.
Lasse Hertle +5 more
wiley +1 more source
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 16, 28 August 2025.Abstract In this study, we have investigated short‐period (< ${< } $1 hr) atmospheric gravity waves (AGWs) in the Arctic mesosphere‐lower thermosphere (MLT) region during January of 2014, 2015, and 2016. We used OH (3,1) band emission data from the Advanced Mesospheric Temperature Mapper (AMTM) at the Arctic Lidar Observatory for Middle Atmosphere ...
Subir Mandal +5 more
wiley +1 more source
Observations of Radio Emission from Normal Galaxies [PDF]
, 1963 DS Mathewson, JM Rome
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A Galactic-scale Magnetized Wind around a Normal Star-forming Galaxy
The Astrophysical Journal LettersGalaxy formation theory identifies superwinds as a key regulator of star formation rates, galaxy growth, and chemical enrichment. Thermal and radiation pressure are known to drive galactic-scale winds in dusty starbursting galaxies (e.g., M82), but ...
A. M. Matthews +7 more
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The Radio Emission from Normal Galaxies: II. A Study of 20 Spirals at 158 Mc/s [PDF]
, 1961 R. H. Brown, C. Hazard
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A new radio map of the sky and a model of the galaxy.
, 1956 H. C. Ko, J. D. Kraus
openalex +2 more sources
Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei
The Astrophysical JournalIt is believed that dual active galactic nuclei (AGN) form during galaxy mergers. Studying dual-AGN emission can provide valuable insights into galaxy merging and evolution.
Wancheng Xu +13 more
doaj +1 more source