Results 61 to 70 of about 235,164 (217)

Effects of Dietary Mannan Oligosaccharides on Growth, Disease Resistance, and Gut Microbiota in Zebrafish

open access: yesAnimal Research and One Health, EarlyView.
Supplementation with mannan oligosaccharides (MOS) enhances growth, disease resistance, antioxidant capacity, and gut microbiota diversity while suppressing inflammation, apoptosis, and strengthening intestinal barrier integrity in zebrafish challenged with LPS or DSS.
Zhiyuan Lu   +4 more
wiley   +1 more source

Principal Component‐Based Classification of Blazar Candidates of Uncertain Type in the 4FGL/LAT

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We adopted principal component analysis (PCA), linear discriminant analysis (LDA), and support vector machines (SVM), to study classification for a sample of 2708 Fermi blazars: 1142 BL Lac objects (BLLs), 759 flat spectrum radio quasars (FSRQs), and 807 blazar candidates of uncertain type (BCUs).
Wen‐Xin Yang   +13 more
wiley   +1 more source

The Accretion of Gas onto Galaxies as Traced by their Satellites

open access: yes, 2010
14 pages, 6 figures, submitted to ...
Kauffmann, G., Li, C., Heckmann, T.
openaire   +3 more sources

Simulating supernova feedback in galaxy disks [PDF]

open access: yes, 2012
In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD   +1 more
core  

Tracing AGN accretion and star formation in Herschel galaxies [PDF]

open access: yes, 2014
In this Thesis, we study the physical properties and the cosmic evolution of AGN and their host galaxies since z∼3. Our analysis exploits samples of star forming galaxies detected with Herschel at far-IR wavelengths (from 70 up to 500 micron) in ...
Delvecchio, Ivan <1987>
core   +1 more source

Gas Accretion from a Neighbouring Galaxy Fuels the Low-luminosity Active Galactic Nucleus in NGC 4278

open access: yesThe Astrophysical Journal
How a seemingly “dead” host galaxy provides fuel for its active galactic nucleus (AGN) remains an unresolved problem. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we present a new high-sensitivity atomic-hydrogen (H i ...
Jin-Long Xu   +6 more
doaj   +1 more source

Direct SMBH Formation Driven by Runaway Stellar Collisions in Globally Unstable Stellar Systems

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The fueling problem addresses the ultimate fate of the reservoirs of gas and stars driven into the deepest gravitational potential wells of galaxies, thus it may contain the Universe's densest concentrations of gas and stars. This raises a key question: does the infalling material collapse directly into a supermassive black hole, or can it ...
Marcelo C. Vergara, Andrés Escala
wiley   +1 more source

Bondi accretion in early-type galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
13 pages, 5 figures, submitted to MNRAS.
V. Korol   +2 more
openaire   +3 more sources

Jet–Accretion System in the Nearby mJy Radio Galaxies

open access: yesThe Astrophysical Journal, 2021
Abstract It is generally thought that FRII radio galaxies host thin optically thick disks, while FRIs are powered by advection-dominated accretion flows. Sources with an efficient engine are optically classified as high-excitation radio galaxies (HERGs) and those with an inefficient motor as low-excitation radio galaxies (LERGs ...
Paola Grandi   +4 more
openaire   +3 more sources

JWST Spectroscopic View of a Rapidly Growing, Dust-obscured Quasar at z ∼ 4: Effect of Dust Extinction Correction on Black Hole Mass and Eddington Ratio Estimation

open access: yesThe Astrophysical Journal
In the merger-driven galaxy evolution scenario, the central supermassive black holes (SMBHs) in dust-obscured galaxies grow rapidly. Interestingly, a recent work on a dust-obscured galaxy, LID-568 at z = 3.965, has shown that its SMBH is growing ...
Dohyeong Kim, Myungshin Im
doaj   +1 more source

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