Results 41 to 50 of about 4,278,679 (301)

Starburst–AGN mixing – II. Optically selected active galaxies [PDF]

open access: yes, 2014
We use 4 galaxies from the Calar Alto Legacy Integral Field Area (CALIFA) survey with clear signs of accretion onto supermassive black holes to investigate the relative contribution of star-formation and active galactic nucleus (AGN) activity to the line-
R. Davies, L. Kewley, I. Ho, M. Dopita
semanticscholar   +1 more source

The eMERLIN and EVN View of FR 0 Radio Galaxies

open access: yesGalaxies, 2021
We present the results from high-resolution observations carried out with the eMERLIN UK-array and the European VLBI network (EVN) for a sample of 15 FR 0s, i.e., compact core-dominated radio sources associated with nearby early-type galaxies (ETGs ...
Ranieri D. Baldi   +2 more
doaj   +1 more source

Galaxy Evolution in the Radio Band: The Role of Star-forming Galaxies and Active Galactic Nuclei [PDF]

open access: yes, 2017
We investigate the astrophysics of radio-emitting star-forming galaxies and active galactic nuclei (AGNs) and elucidate their statistical properties in the radio band, including luminosity functions, redshift distributions, and number counts at sub-mJy ...
C. Mancuso   +8 more
semanticscholar   +1 more source

The star formation rates of active galactic nuclei host galaxies [PDF]

open access: yes, 2016
Using artificial neural network (ANN) predictions of total infra-red luminosities (LIR), we compare the host galaxy star formation rates (SFRs) of ~21,000 optically selected active galactic nuclei (AGN), 466 low excitation radio galaxies (LERGs) and 721 ...
S. Ellison   +3 more
semanticscholar   +1 more source

DO QUIESCENT AND ACTIVE GALAXIES HAVE DIFFERENT MBH–σ* RELATIONS? [PDF]

open access: yes, 2013
To investigate the validity of the assumption that quiescent galaxies and active galaxies follow the same black hole mass (MBH)–stellar velocity dispersion (σ*) relation, as required for the calibration of MBH estimators for broad line active galactic ...
J. Woo   +5 more
semanticscholar   +1 more source

Dust-obscured Galaxies with Broken Power-law Spectral Energy Distributions Discovered by UNIONS

open access: yesThe Astrophysical Journal
We report on the spectral energy distributions (SEDs) of infrared (IR)-bright dust-obscured galaxies (DOGs) with ( i − [22]) _AB ≥ 7.0. Using photometry from the deep and wide Ultraviolet Near-Infrared Optical Northern Survey, combined with near-IR (NIR)
Taketo Yoshida   +13 more
doaj   +1 more source

HERSCHEL/SPIRE SUBMILLIMETER SPECTRA OF LOCAL ACTIVE GALAXIES, [PDF]

open access: yes, 2013
We present the submillimeter spectra from 450 to 1550 GHz of 11 nearby active galaxies observed with the SPIRE Fourier Transform Spectrometer (SPIRE/FTS) on board Herschel.
M. Pereira-Santaella   +13 more
semanticscholar   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

open access: yesAdvanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello   +5 more
wiley   +1 more source

Modelling the narrow-line regions of active galaxies in the Sloan Digital Sky Survey - I. Sample selection and physical conditions [PDF]

open access: yes, 2013
Using spectroscopy from the Sloan Digital Sky Survey Data Release Seven, we systematically determine the electron density ne and electron temperature Te of active galaxies and star-forming galaxies while mainly focusing on the narrow-line regions (NLRs).
Zhitai Zhang, Yan-chun Liang, F. Hammer
semanticscholar   +1 more source

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen   +7 more
wiley   +1 more source

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