Results 1 to 10 of about 7,678 (120)

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   +3 more sources

Short-term dynamical evolution of grand-design spirals in barred galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
We investigate the short-term dynamical evolution of stellar grand-design spiral arms in barred spiral galaxies using a three-dimensional (3D) $N$-body/hydrodynamic simulation.
Baba, Junichi
core   +2 more sources

Giant molecular clouds in the non-grand design spiral galaxy NGC 6946 [PDF]

The Astrophysical Journal, 2012
We present high spatial resolution observations of Giant Molecular Clouds (GMCs) in the eastern part of the nearby spiral galaxy NGC 6946 obtained with the Combined Array for Research in Millimeter-wave Astronomy (CARMA). We have observed 12CO(1-0), 12CO(
Adam Leroy, Bigiel, Blanc, Blitz, Bolatto, Calzetti, Calzetti, Considère, Crosthwaite, David Rebolledo, de Blok, Donovan Meyer, Elmegreen, Engargiola, Evans, Fazio, Foyle, Fukui, Gil de Paz, Goldsmith, Gutermuth, Heiderman, Helfer, Heyer, Hirota, Jennifer Donovan Meyer, Jin Koda, Kennicutt, Kennicutt, Kim, Koda, Koda, Krumholz, Krumholz, Kuno, Larson, Leroy, Leroy, Leroy, Leroy, Liu, Milam, Miyawaki, Murray, Oka, Ossenkopf, Ostriker, Rahman, Regan, Rieke, Rohlfs, Rosolowsky, Sakamoto, Schlegel, Shetty, Tasker, Tasker, Thornley, Tony Wong, Tosaki, Tully, Wada, Walter, Wong, Wong, Wu, Wyder, Yim   +67 more
core   +3 more sources

Grand Design and Flocculent Spirals in the Spitzer Survey of Stellar Structure in Galaxies (S4G) [PDF]

The Astrophysical Journal, 2011
Spiral arm properties of 46 galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G) were measured at 3.6mu, where extinction is small and the old stars dominate.
Albert Bosma, Andrew Yau, Ann, Ann, Armando Gil de Paz, Athanassoula, Athanassoula, Athanassoula, Barry F. Madore, Bertin, Block, Block, Block, Bruce G. Elmegreen, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Buta, Combes, Combes, Considère, Contopoulos, de Vaucouleurs, Debattista, Debra Meloy Elmegreen, Dennis Zaritsky, Dimitri A. Gadotti, Draine, E. Athanassoula, Eija Laurikainen, Elmegreen, Elmegreen, Elmegreen, Eskridge, Fazio, Gadotti, George Helou, Goldreich, Heikki Salo, Hoyle, Jarkko Laine, Joannah L. Hinz, Jogee, Johan H. Knapen, Juan-Carlos Muñoz-Mateos, Karen L. Masters, Kartik Sheth, Karín Menéndez-Delmestre, Luis C. Ho, Manuel Aravena, Mark Seibert, Meidt, Mendéndez-Delmestre, Michael W. Regan, Oh, Ramin Skibba, Ronald J. Buta, Salo, Santiago Erroz Ferrer, Schlosser, Sellwood, Sellwood, Sharon E. Meidt, Taehyun Kim, Thornley, Thornley, Toomre, Trisha Mizusawa, Visser   +73 more
core   +10 more sources

A direct test of density wave theory in a grand-design spiral galaxy [PDF]

Nature Astronomy, 2018
24 pages, 4 figures. This is a post-peer-review, pre-copyedit version of an article published in Nature Astronomy.
Thomas Peterken, M R Merrifield, Alfonso Aragón-Salamanca   +2 more
exaly   +6 more sources

High velocity dispersion in a rare grand-design spiral galaxy at redshift z = 2.18 [PDF]

Nature, 2012
Accepted for publication in Nature (July 19 2012).
Alice E Shapley, Charles C Steidel, Naveen A Reddy   +2 more
exaly   +5 more sources

Simulations of the grand design galaxy M51: a case study for analysing tidally induced spiral structure [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
We present hydrodynamical models of the grand design spiral M51 (NGC 5194), and its interaction with its companion NGC 5195. Despite the simplicity of our models, our simulations capture the present day spiral structure of M51 remarkably well, and even ...
Agertz, Balbus, Bate, Bate, Bate, Bate, Benz, Bertin, Binney, Blitz, Bottema, Buta, Byrd, Byrd, C. L. Dobbs, C. Theis, Chakrabarti, Chamberlin, Corder, Cox, De Avillez, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Donner, Egusa, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Elmegreen, Feitzinger, Gittins, Goldreich, Goldreich, Hernquist, Hitschfeld, J. E. Pringle, Jog, Julian, Jáchym, Kendall, Kim, Koda, Kormendy, Kuijken, La Vigne, Li, Lin, Lin, M. R. Bate, Mark, Martínez-García, Meidt, Merrifield, Monaghan, Oh, Patrikeev, Patsis, Petit, Petsch, Pierce, Press, Price, Price, Price, Price, Price, Rand, Renaud, Roberts, Robertson, Romeo, Rots, Salo, Salo, Schinnerer, Sellwood, Shetty, Shetty, Shetty, Slyz, Sofue, Springel, Springel, Sundelius, Tamburro, Tasker, Tasker, Theis, Theis, Tilanus, Toomre, Toomre, Toomre, Toomre, Toomre, Tosaki, Tully, Vogel, Wada, Wada, Westpfahl, Yáñez, Zaritsky   +107 more
core   +6 more sources

Flocculent and grand design spiral galaxies in groups - Time scales for the persistence of grand design spiral structures

Astrophysical Journal, 1983
Spiral arm classifications were made for 261 low-inclination galaxies in groups listed by Huchra and Geller. The fractional occurrence of grand design spiral structure in nonbarred galaxies was found to increase from approx.0.1 to approx.0.6 and then level off as the group crossing rate or galaxy collision rate in a group increases.
Bruce G Elmegreen, Debra Meloy Elmegreen
exaly   +2 more sources

Spatially resolved properties of the grand-design spiral galaxy UGC 9837: a case for high-redshift 2-D observations [PDF]

Astronomy and Astrophysics, 2012
12 pages, 9 figures, accepted for publication in A& ...
S F Sanchez, A Gil de Paz, Glenn van de Ven   +2 more
exaly   +6 more sources

THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS). I. A CLOUD-SCALE/MULTI-WAVELENGTH VIEW OF THE INTERSTELLAR MEDIUM IN A GRAND-DESIGN SPIRAL GALAXY [PDF]

Astrophysical Journal, 2013
The PdBI (Plateau de Bure Interferometer) Arcsecond Whirlpool Survey (PAWS) has mapped the molecular gas in the central ~9kpc of M51 in its 12CO(1-0) line emission at cloud-scale resolution of ~40pc using both IRAM telescopes. We utilize this dataset to quantitatively characterize the relation of molecular gas (or CO emission) to other tracers of the ...
E Schinnerer, Sharon E Meidt, Jérôme Pety   +2 more
exaly   +5 more sources