Results 1 to 10 of about 3,888 (145)
Circular Polarization of Active Galaxies
, 2023 No description ...
David Rayner
openalex +2 more sources
Galaxy activity in merging binary galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We present the results of a study of galaxy activity in two merging binary clusters (A168 and A1750) using the Sloan Digital Sky Survey (SDSS) data supplemented with the data in the literature. We have investigated the merger histories of A168 and A1750 by combining the results from a two-body dynamical model and X-ray data.
Hwang, Ho Seong, Lee, Myung Gyoon
openaire +2 more sources
Chemical abundances in active galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The Sloan Digital Sky Survey (SDSS) has proved to be a powerful resource for understanding the physical properties and chemical composition of star-forming galaxies in the local Universe. The SDSS population of active galactic nuclei (AGNs) remains as of yet less explored in this capacity.
Flury, Sophia R., Moran, Edward C.
openaire +2 more sources
Nuclear activity in isolated galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 7 figures, 7 ...
Hernández-Ibarra, Francisco J. +5 more
openaire +3 more sources
Mechanical heating by active galaxies [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005 Jets and winds are significant channels for energy loss from accreting black holes. These outflows mechanically heat their surroundings, through shocks as well as gentler forms of heating. We discuss recent efforts to understand the nature and distribution of mechanical heating by central active galactic nuclei (AGN) in clusters of ...
Begelman, M, Ruszkowski, M
openaire +4 more sources
Active galaxies and radiative heating
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005 There is abundant evidence that heating processes in the central regions of elliptical galaxies have both prevented large–scale cooling flows and assisted in the expulsion of metal rich gas. We now know that each such spheroidal system harbours in its core a massive black hole weighing ca.
J. P. Ostriker, CIOTTI, LUCA
openaire +3 more sources
Active galaxies and cluster gas [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005 Two lines of evidence indicate that active galaxies, principally radio galaxies, have heated the diffuse hot gas in clusters. The first is the general need for additional heating to explain the steepness of the X–ray luminosity–temperature relation in clusters, the second is to solve the cooling–flow problem in cluster cores.
openaire +3 more sources
A Hubble Space Telescope Imaging Survey of Low-redshift Swift-BAT Active Galaxies* [PDF]
, 2021 Minjin Kim +3 more
openalex +1 more source
Merging Galaxies with Active Nuclei [PDF]
Symposium - International Astronomical Union, 1999 We are investigating a sample of nearby interacting and merging galaxies showing starburst properties and/or nonthermal nuclear activity (e.g. Mrk 231, Mrk 739, Mrk 1027, NGC 2992, Arp 92).
openaire +1 more source
Preliminary characterization of an active spiral galaxy near m57 [PDF]
, 2023 Elio Quiroga Rodríguez
openalex +1 more source