Results 1 to 10 of about 1,058 (212)
Narrow-line Seyfert 1 galaxies and the evolution of galaxies and active galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2000 Narrow Line Seyfert 1 galaxies (NLS1s) are intriguing due to their continuum as well as emission line properties. The observed peculiar properties of the NLS1s are believed to be due to accretion rate close to Eddington limit. As a consequence, for a given luminosity, NLS1s have smaller black hole (BH) masses compared to normal Seyfert galaxies.
S Mathur, Smita Mathur, Mathur Smita
exaly +3 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
Outflows in the Disks of Active Galaxies [PDF]
The Astrophysical Journal, 2019 Abstract Recent advances in observations have provided a wealth of measurements of the expansions of outflows in galactic disks out to large radii in a variety of galactic hosts. To provide an updated baseline for the interpretation of such data, and to assess to what extent the present status of the modeling is consistent with the ...
N. Menci +7 more
openaire +5 more sources
Astrophysics and Space Science, 2006 29 pages, 13 figures, Ap&SS in ...
Kollatschny, Wolfram, Ting-Gui, Wang
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Janus kinase 2 inhibition by pacritinib as potential therapeutic target for liver fibrosis
Hepatology, EarlyView., 2022 Diagram of the activation of the profibrotic and procontractile Janus kinase 2 (JAK2)/Ras homolog family member A/Rho‐kinase pathway and the inhibition of phosphorylated JAK2 by pacritinib to inhibit hepatic stellate cell activity. Abstract Background and Aims Janus kinase 2 (JAK2) signaling is increased in human and experimental liver fibrosis with ...
Sandra Torres +21 more
wiley +1 more source
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
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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
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
Advanced Materials, EarlyView.A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho +3 more
wiley +1 more source
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