Results 91 to 100 of about 470,379 (288)

Spiral structure in nearby galaxies I. Sample, data analysis, and overview of results

, 2011
This paper, the first of two, introduces an observational study of spiral structure in galaxies chosen from the SINGS survey. Near infrared (NIR) and optical data are used to produce mass surface density maps, and from these the morphology of the disc is
Bell, Bell, Bertin, Block, Block, Block, Bottema, Braun, Buta, Byrd, C. Clarke, Canzian, Clarke, Daigle, de Blok, Dicaire, Dobbs, Dobbs, Duley, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Fazio, Flagey, Gerola, Gittins, Grosbøl, Helou, Israel, Jiménez-Vicente, Karachentsev, Karachentseva, Kendall, Kennicutt, Kennicutt, Kilborn, Knapen, Korchagin, Kormendy, Lin, Lin, Lindblad, Mueller, Oh, Peng, Pisano, R. C. Kennicutt, Regan, Relaño, Roberts, Roberts, S. Kendall, Salo, Schweizer, Seigar, Seigar, Sellwood, Sellwood, Semelin, Sil’chenko, Taga, Theis, Thornley, Tokunaga, Toomre   +70 more
core   +1 more source

HST Photometry and Keck Spectroscopy of the Rich Cluster MS1054-03: Morphologies, Butcher-Oemler Effect and the Color-Magnitude Relation at z=0.83 [PDF]

, 2000
We present a study of 81 I selected, spectroscopically-confirmed members of the X-ray cluster MS1054-03 at z=0.83. Redshifts and spectral types were determined from Keck spectroscopy.
Andreon S., Aragon-Salamanca A., Barbaro G., Bower R. G., Couch W. J., Daniel D. Kelson, Daniel Fabricant, de Theije P. A. M., Fried J. W., Garth D. Illingworth, Hogbom J. A., Kodama T., Marijn Franx, Pieter G. van Dokkum, Tytler D., van Dokkum P. G.   +15 more
core   +2 more sources

Towards a more realistic population of bright spiral galaxies in cosmological simulations [PDF]

, 2013
We present an update to the multiphase SPH galaxy formation code by Scannapieco et al. We include a more elaborate treatment of the production of metals, cooling rates based on individual element abundances, and a scheme for the turbulent diffusion of ...
M. Aumer, S. White, T. Naab, C. Scannapieco   +3 more
semanticscholar   +1 more source

Stellar Populations in Bulges of Spiral Galaxies [PDF]

Astrophysics and Space Science, 2002
To be published in "The Evolution of Galaxies. II. Basic Building Blocks", ed. M.
Jablonka, Pascale, Gorgas, Javier, Goudfrooij, Paul   +2 more
openaire   +6 more sources

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

Grand Design versus Multiarmed Spiral Galaxies: Dependence on Galaxy Structure

The Astronomical Journal
We developed an algorithm to use Galaxy Zoo 3D spiral arm masks produced by citizen scientist volunteers to semiautomatically classify spiral galaxies as either multiarmed or grand design spirals. Our final sample consists of 299 multiarmed and 245 grand
Beverly J. Smith, Matthew Watson, Mark L. Giroux, Curtis Struck   +3 more
doaj   +1 more source

The Integrated Polarization of Spiral Galaxy Disks

, 2008
We present integrated polarization properties of nearby spiral galaxies at 4.8 GHz, and models for the integrated polarization of spiral galaxy disks as a function of inclination.
A. R. Taylor, Arshakian, Binney, Brown, Brown, Burn, Chyży, Dumke, Dumke, Fletcher, Golla, Grosbøl, Gräve, Han, Heesen, J. M. Stil, Krause, Lambas, M. Krause, Niklas, R. Beck, Simmons, Stil, Taylor, Tüllmann, Wilman   +25 more
core   +1 more source

Pitch angle variations in spiral galaxies [PDF]

, 2013
We present a detailed photometric study and measurements of spiral arm pitch angles for a sample of 50 non-barred or weakly barred grand-design spiral galaxies selected from Sloan Digital Sky Survey.
S. Savchenko, V. Reshetnikov
semanticscholar   +1 more source

C13‐Deacylase from Nocardioides albus Resp. Streptomyces sp., Catalyzing Side Chain Hydrolysis on the Taxane Core

ChemCatChem, EarlyView.
An enzyme that has been identified and characterized as capable of hydrolyzing paclitaxel (Taxol), a key anticancer drug derived from Pacific yew (Taxus brevifolia) has been identified. Molecular docking (MD) simulations map the catalytic triad and critical residues that drive substrate‐enzyme interactions. The findings indicate the catalytic potential
Jinfen Su, Eugen Schell, Thomas Heine, Marion B. Ansorge‐Schumacher   +3 more
wiley   +1 more source

Color Differences between Clockwise and Counterclockwise Spiral Galaxies [PDF]

, 2013
While spiral galaxies observed from Earth clearly seem to spin in different directions, little is yet known about other differences between galaxies that spin clockwise and galaxies that spin counterclockwise.
L. Shamir
semanticscholar   +1 more source