Results 101 to 110 of about 1,084,097 (331)

Mutual distance dependence drives the observed jet-power–radio-luminosity scaling relations in radio galaxies [PDF]

open access: yes, 2015
The kinetic power of radio jets is a quantity of fundamental importance to studies of the AGN feedback process and radio galaxy physics. A widely used proxy for jet power is the extended radio luminosity.
L. Godfrey, S. Shabala
semanticscholar   +1 more source

Radio and spectroscopic properties of miniature radio galaxies: revealing the bulk of the radio-loud AGN population

open access: yes, 2009
We explore radio and spectroscopic properties of a sample of 14 miniature radio galaxies, i.e. early-type core galaxies hosting radio-loud AGN of extremely low radio power, 10^(27-29) erg s^(-1) Hz^(-1) at 1.4 GHz.
A. Capetti   +73 more
core   +1 more source

THE TRIGGERING AND BIAS OF RADIO GALAXIES [PDF]

open access: yesMultiwavelength AGN Surveys, 2004
We present new results on the clustering and three-dimensional distribution of radio galaxies from the Texas-Oxford NVSS Structure (TONS) survey. The TONS survey was constructed to look at the distribution of radio galaxies in a region of moderate (0 < z < 0.5) redshifts by matching NVSS sources with objects in APM catalogues to obtain a sample ...
Kate Brand   +3 more
openaire   +3 more sources

Parametric Design of Continuum Robots Using Interlocking Ball Joints

open access: yesAdvanced Intelligent Systems, EarlyView.
Herein, a parametric design methodology is introduced for producing a wide variety of modular ball joint‐based continuum robots. It is demonstrate by designing a magnetically actuated continuum robot for cardiac ablations. The methodology is released as an open‐source computer‐assisted design extension that automatically designs continuum robots based ...
Alexandre Mesot   +5 more
wiley   +1 more source

Investigating the Star Formation Characteristics of Radio Active Galactic Nuclei

open access: yesThe Astrophysical Journal
The coevolution of supermassive black holes and their host galaxies represents a fundamental question in astrophysics. One approach to investigating this question involves comparing the star formation rates (SFRs) of active galactic nuclei (AGNs) with ...
Bojun Zhang   +7 more
doaj   +1 more source

Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range

open access: yesThe Astrophysical Journal, 2023
We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity.
Anna Wójtowicz   +4 more
doaj   +1 more source

The Clustering Of Galaxies Around Radio-Loud AGNs

open access: yes, 2013
We examine the hypothesis that mergers and close encounters between galaxies can fuel AGNs by increasing the rate at which gas accretes towards the central black hole.
Beutler, Florian   +4 more
core   +1 more source

Starburst radio galaxies: general properties, evolutionary histories and triggering [PDF]

open access: yes, 2010
In this paper we discuss the results of a programme of spectral synthesis modelling of a sample of starburst radio galaxies in the context of scenarios for the triggering of the activity and the evolution of the host galaxies.
Almeida, C. Ramos   +8 more
core   +3 more sources

On dynamical models for radio galaxies [PDF]

open access: yesNew Astronomy Reviews, 2002
The tailed radio galaxies that have been called ``Type I'' are not a uniform set. To study their dynamics, we have used the Ledlow-Owen data set, which provides a new sample of 250 radio galaxies in nearby Abell clusters. These sources divide into two clear categories based on their radio morphology.
Frazer N. Owen   +4 more
openaire   +3 more sources

Multitarget Recognition of Flower Images Based on Lightweight Deep Neural Network and Transfer Learning

open access: yesAdvanced Intelligent Systems, EarlyView.
This article proposes a lightweight YOLOv4‐based detection model using MobileNetV3 or CSPDarknet53_tiny, achieving 30+ FPS and higher mAP. It also presents a ShuffleNet‐based classification model with transfer learning and GAN‐augmented images, improving generalization and accuracy.
Qingyang Liu, Yanrong Hu, Hongjiu Liu
wiley   +1 more source

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