Results 91 to 100 of about 3,265,657 (290)

Kiloparsec-scale Neutral Iron Kα Emission in the Starburst-AGN NGC 4945: A Relic AGN Outflow?

open access: yesThe Astrophysical Journal
NGC 4945 contains a well-known heavily obscured active galactic nucleus (AGN) at its core, with prior reports of strong nuclear and off-nuclear neutral Fe K α emission due to the AGN activity. We report the discovery of very extended Fe K α emission with
Kimberly A. Weaver   +10 more
doaj   +1 more source

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich   +4 more
wiley   +1 more source

Acknowledgment to Reviewers of Galaxies in 2020

open access: yes, 2021
Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Galaxies maintains its standards for the high quality of its published papers [...
Galaxies Editorial Office Galaxies Editorial Office
core   +1 more source

An Exceptionally Powerful, Radiatively Driven Ultrafast Outflow in the Rapidly Accreting AGN RE J1034+396

open access: yesThe Astrophysical Journal
We report the analysis of ∼1 Ms of XMM-Newton observations of the rapidly accreting active galactic nucleus RE J1034+396. The 0.3–9 keV EPIC-pn spectra are well described by a model consisting of steep continuum emission from the corona accompanied by ...
Chloe S. Taylor   +2 more
doaj   +1 more source

Megamaser Activity in Active Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1999
Megamaser emission provides an unprecedented view of the inner nuclear regions of active galaxies. The characteristics of OH, H2CO, and H2O sources identify different physical environments in the nuclei of megamaser host galaxies. Various classification schemes suggest a dominant starburst nature for the OH and H2CO sources providing the NIR/FIR ...
openaire   +1 more source

Scalable Computation of Topological Abstractions for Scalar Data

open access: yesComputer Graphics Forum, EarlyView.
Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will   +6 more
wiley   +1 more source

CALIFA : a diameter-selected sample for an integral field spectroscopy galaxy survey [PDF]

open access: yes, 2014
JMA acknowledges support from the European Research Council Starting Grant (SEDmorph; P.I. V. Wild).We describe and discuss the selection procedure and statistical properties of the galaxy sample used by the Calar Alto Legacy Integral Field Area (CALIFA)
M. M. Roth   +127 more
core   +2 more sources

The Infrared Traced Star Formation Rates of Associated Absorption Lines Quasars

open access: yesThe Astrophysical Journal
Some optically selected quasars exhibit Mg ii- associated absorption lines (AALs), and their origin remains unclear. In this paper, we compile a sample of 1769 quasars, with or without Mg ii AALs, of which 1689 are far-infrared (FIR) detected quasars and
Zhe-Geng Chen   +6 more
doaj   +1 more source

Active galaxies in the field and in Galaxy Clusters

open access: yesCommunications of the Byurakan Astrophysical Observatory
We review the current activities of the Department of Active Galaxies of Byurakan Astrophysical Observatory. The studies include broad areas, ranging from manifestations of activity in our galaxy, other galaxies and clusters of galaxies to the study of magnetic fields, the formation of these fields, and cosmological questions.
R. R. Andreasyan   +3 more
openaire   +1 more source

Survey on Visualization of Information Diffusion over Networks

open access: yesComputer Graphics Forum, EarlyView.
Abstract Information Diffusion (ID) describes how a value (e.g., a pathogen, a rumor, a packet) spreads through an underlying “medium” network of elements (e.g., a social or computer network). Understanding the information diffusion process is essential to predicting trends, controlling misinformation, and enhancing decision‐making as well as ...
T. Baumgartl   +8 more
wiley   +1 more source

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