Results 51 to 60 of about 8,556 (157)

The Flocculent Structure of the Inner Milky Way Disk

The Astronomical Journal
Observations of H i published in 1957 by Westerhout and Schmidt were presented as showing a global face-on view of the spiral structure in the Milky Way. Since then, many studies have attempted to improve on the early map, perhaps presupposing our Galaxy
Dana S. Balser, W. B. Burton
doaj   +1 more source

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

The evolution of interacting spiral galaxy NGC 5194 [PDF]

, 2015
NGC 5194 (M51a) is a grand-design spiral galaxy and undergoing interactions with its companion. Here, we focus on investigating main properties of its star formation history (SFH) by constructing a simple evolution model, which assumes that the disc ...
X. Kang, R. Chang, Fenghui Zhang, L. Cheng, Lang Wang   +4 more
semanticscholar   +1 more source

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

Chemie Ingenieur Technik, EarlyView.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau, Gerald Steiner, Tom Harwood   +2 more
wiley   +1 more source

Dynamically Driven Evolution of the Interstellar Medium in M51 [PDF]

, 2009
Massive star formation occurs in giant molecular clouds (GMCs); an understanding of the evolution of GMCs is a prerequisite to develop theories of star formation and galaxy evolution. We report the highest-fidelity observations of the grand-design spiral
Bock, Douglas C.-J., Carpenter, John M., Corder, Stuartt A., Hawkins, David, Hodges, Mark, Kemball, Athol, Koda, Jin, La Vigne, Misty A., Lamb, James W., Patience, Jenny, Plambeck, Richard L., Potts, Ashley E., Pound, Marc W., Sargent, Anneila I., Sawada, Tsuyoshi, Scott, Stephen L., Scoville, Nick, Teuben, Peter, Voguel, Stuart N., White, Stephen M., Woody, David P., Wright, Melvyn C. H., Zauderer, B. Ashley   +22 more
core  

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

Computer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich, M. Levy, O. Avrahami, D. Samuel, D. Lischinski   +4 more
wiley   +1 more source

Dust-penetrated morphology in the high-redshift universe: clues from NGC 922 [PDF]

, 2001
Results from the Hubble Deep Field (HDF) North and South show a large percentage of high-redshift galaxies whose appearance falls outside traditional classification systems.
A. Stockton, Abraham, Abraham, Abraham, Bally, Block, Block, Block, Bouwens, Charlot, Cohen, D. L. Block, Devereux, Driver, Eskridge, Ferguson, Giavalisco, Gillett, Glazebrook, Grosbøl, Hauser, Holland, I. Puerari, I. Robson, Jenness, Kauffmann, M. Takamiya, Puerari, Puerari, R. Abraham, Schröder, Takamiya, van den Bergh, van den Bergh, W. Holland   +34 more
core   +2 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms

The Astrophysical Journal
The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations (“kinks” or sharp turns) in specific regions.
Joan Font, John E. Beckman, Benoît Epinat, Clare L. Dobbs, Miguel Querejeta   +4 more
doaj   +1 more source

The Shearing HI Spiral Pattern of NGC 1365

, 2011
The Tremaine-Weinberg equations are solved for a pattern speed that is allowed to vary with radius. The solution method transforms an integral equation for the pattern speed to a least squares problem with well established procedures for statistical ...
Aster, Berman, Bertin, Bertin, Bevington, Binney, Bureau, David J. Westpfahl, de Vaucouleurs, Debattista, Engström, Fathi, Fathi, Gabbasov, Goldreich, Gradshteyn, Hernandez, Jason C. Speights, Lindblad, Lindblad, Masset, Meidt, Meidt, Meidt, Merrifield, Merrifield, Oh, Oh, Oh, Ramsey, Rand, Rots, Sellwood, Sellwood, Sorensen, Struck, Toomre, Vera-Villamizar, Walter, Walter, Westpfahl, Zimmer   +41 more
core   +1 more source