Results 61 to 70 of about 8,556 (157)

The dynamics of stellar disks in live dark-matter halos [PDF]

, 2018
Recent developments in computer hardware and software enable researchers to simulate the self-gravitating evolution of galaxies at a resolution comparable to the actual number of stars. Here we present the results of a series of such simulations.
Baba, Junichi, Bédorf, Jeroen, Fujii, Michiko S., Zwart, Simon Portegies   +3 more
core   +3 more sources

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, Volume 13, Issue 28, 18 May 2026.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source

Arm & Interarm Star Formation in Spiral Galaxies

, 2010
We investigate the relationship between spiral arms and star formation in the grand-design spirals NGC 5194 and NGC 628 and in the flocculent spiral NGC 6946.
A. K. Leroy, Bigiel, Binney, Blitz, Bush, Calzetti, Calzetti, Elmegreen, Elmegreen, Eskridge, F. Walter, Garcia-Burillo, Gil de Paz, H.-W. Rix, K. Foyle, Kennicutt, Knapen, Koda, Krumholz, Kuno, Leroy, Leroy, Momose, Schinnerer, Schlegel, Sellwood, Tamburro, Thornley, Walter   +28 more
core   +1 more source

The Whirlpool Galaxy (M 51) and Companion Galaxy [PDF]

, 2005
This Hubble Space Telescope image shows the stellar fireworks seen in the core of the Whirlpool Galaxy, also known as M51. The back of this image describes the history of how astronomers have viewed this galaxy over the last 150 years.

core   +1 more source

METALLICITY GRADIENT OF A LENSED FACE-ON SPIRAL GALAXY AT REDSHIFT 1.49 [PDF]

, 2011
We present the first metallicity gradient measurement for a grand-design face-on spiral galaxy at z ∼ 1.5. This galaxy has been magnified by a factor of 22× by a massive, X-ray luminous galaxy cluster MACS J1149.5+2223 at z = 0.544. Using the Laser Guide
T. Yuan, L. Kewley, A. Swinbank, J. Richard, R. C. L. IfA, Hawaii Durham, UK Dark Cosmology Centre, Niels Bohr Institute   +7 more
semanticscholar   +1 more source

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

The Coherent Magnetic Field of the Milky Way

The Astrophysical Journal
We present a suite of models of the coherent magnetic field of the Galaxy based on new divergence-free parametric functions describing the global structure of the field.
Michael Unger, Glennys R. Farrar
doaj   +1 more source

On the Spiral Structure of the Milky Way Galaxy

, 2010
We consider the possible pattern of the overall spiral structure of the Galaxy, using data on the distribution of neutral (atomic), molecular, and ionized hydrogen, on the base of the hypothesis of the spiral structure being symmetric, i.e.
A. Cabrera-Lavers, A. D. Chernin, A. E. Piskunov, A. K. Dambis, A. Luna, A. M. Mel’nik, A. M. Mel’nik, B. Elmegreen, B. G. Elmegreen, B. G. Elmegreen, B. G. Elmegreen, C. Clarke, C. Clarke, C. L. Dobbs, D. A. Grabelsky, D. A. Grabelsky, D. M. Gittins, E. Churchwell, E. S. Levine, H. Nakanishi, H. Nakanishi, H. Weaver, J. A. Selwood, J. P. Vallée, J. Vaucouleurs de, L. G. Hou, L. N. Berdnikov, M. J. Reid, M. Messineo, M. S. Seigar, M.S. Seigar, N. M. McClure-Griffiths, P. A. James, R. A. Benjamin, R. Beck, R. C. Kennicutt Jr., R. Shetty, R. X. McGee, S. T. Strasser, T. M. Dame, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov   +48 more
core   +1 more source

Engineering Asymmetry: How Chirality Boosts Catalysis, Spin Selectivity, and Light–Matter Interactions

ChemPhotoChem, Volume 10, Issue 4, April 2026.
This review connects chiroptical spectroscopy, asymmetric catalysis, and spintronics, revealing how chirality influences the interactions of matter with light, charge, and spin. Across diverse systems, remarkable chiroptical effects emerge, showing among others that high efficiencies can arise without absolute enantiopurity, and that functionality is ...
Charitini Panagiotopoulou, Maedeh Anisi, Changseop Jeong, Kamyar Shameli, J. Lorenzo Alonso‐Gómez, Aras Kartouzian   +5 more
wiley   +1 more source

Molecular Gas Evolution across a Spiral Arm in M 51 [PDF]

, 2010
We present sensitive and high angular resolution CO(1-0) data obtained by the Combined Array for Research in Millimeter-wave Astronomy (CARMA) observations toward the nearby grand-design spiral galaxy M 51.
Aalto, Dame, Egusa, Feldmeier, Fumi Egusa, Garcia-Burillo, Heyer, Jin Koda, Kennicutt, Koda, Meidt, Mutchler, Nakai, Nick Scoville, Sandage, Sault, Schinnerer, Scoville, Shetty, Solomon, Strong   +20 more
core   +2 more sources