Results 111 to 120 of about 4,398,607 (320)
The Astrophysical JournalWe use James Webb Space Telescope Mid-Infrared Instrument Medium-resolution Spectrometer observations of 3C 293 (UGC 8782), CGCG 012-070 and NGC 3884 to investigate the origin of the H _2 emission.
Rogemar A. Riffel +6 more
doaj +1 more source
Large scale environments of z<0.4 active galaxies [PDF]
, 2011 Properties of galaxies depend on their large-scale environment. As the influence of active galactic nuclei (AGN) in galaxy evolution is becoming more evident, their large scale environments may help us understand the evolutionary processes leading to ...
H. Lietzen +7 more
semanticscholar +1 more source
On the Age Distribution of Classical Cepheids in the Galaxy
Astronomische Nachrichten, EarlyView.ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders +5 more
wiley +1 more source
Frontiers in Astronomy and Space Sciences, 2017 We present the galactic stellar age—velocity dispersion relation obtained from a semi-analytic model of galaxy formation. We divide galaxies into two populations: galaxies which have over-massive/under-massive black holes (BHs) against the best-fitting ...
Hikari Shirakata +3 more
doaj +1 more source
FROM STARBURST TO QUIESCENCE: TESTING ACTIVE GALACTIC NUCLEUS FEEDBACK IN RAPIDLY QUENCHING POST-STARBURST GALAXIES [PDF]
, 2014 Post-starbursts are galaxies in transition from the blue cloud to the red sequence. Although they are rare today, integrated over time they may be an important pathway to the red sequence.
Hassen M. Yesuf +7 more
semanticscholar +1 more source
Non‐thermal plasma decontamination of microbes: a state of the art
Biotechnology Progress, Volume 41, Issue 2, March/April 2025.Abstract Microbial decontamination is a critical concern in various sectors, from healthcare to food processing. Traditional decontamination methods, while effective to a degree, present limitations in terms of environmental impact, efficiency, and potential harm to the target material. This review investigates the emerging realm of non‐thermal plasma (
Yiyi Xu, Amarjeet Bassi
wiley +1 more source
X-ray emission of galaxies with emission lines
Вісник Астрономічної школи, 2011 We built new sample of 315 SDSS galaxies which were detected as X-ray sources in 2XMM catalog. On the basis of distribution of relative intensities of emission lines NII [6583] and OIII [5007] we divided objects of the sample into starburst galaxies and ...
A. V. Tugay, A. A. Vasylenko
doaj +1 more source
Deficiency of `Thin' Stellar Bars in Seyfert Host Galaxies [PDF]
, 2000 Using all available major samples of Seyfert galaxies and their corresponding control samples of closely matched non-active galaxies, we find that the bar ellipticities (or axial ratios) in Seyfert galaxies are systematically different from those in non-active galaxies.
arxiv +1 more source
ACCRETION RATE AND THE PHYSICAL NATURE OF UNOBSCURED ACTIVE GALAXIES [PDF]
, 2011 We show how accretion rate governs the physical properties of a sample of unobscured broad-line, narrow-line, and lineless active galactic nuclei (AGNs).
J. Trump +17 more
semanticscholar +1 more source
Staphylococcus aureus AgrA Modulators From South African Antimicrobial Plants
Chemistry &Biodiversity, EarlyView.The study workflow utilized validated in silico [molecular docking, fingerprinting, pharmacokinetics prediction, molecular dynamics (MD) simulation, ligand‐protein contact maps] tools to bioprospect a wide variety of metabolites surveyed from South African plants with antimicrobial activities, and target them against the key S.
Christiana Eleojo Aruwa, Saheed Sabiu
wiley +1 more source