Results 1 to 10 of about 1,112 (128)

Grand Design versus Multiarmed Spiral Galaxies: Dependence on Galaxy Structure [PDF]

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   +4 more sources

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

Nature, 2012
Although grand-design spiral galaxies are relatively common in the local Universe, only one has been spectroscopically confirmed to lie at redshift z > 2 (HDFX 28; z = 2.011); and it may prove to be a major merger that simply resembles a spiral in ...
David R. Law, Alice E. Shapley, Charles C. Steidel, Naveen A. Reddy, Charlotte Christensen, Dawn K. Erb   +5 more
semanticscholar   +10 more sources

Gas and stellar spiral arms and their offsets in the grand-design spiral galaxy M51 [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
Theoretical studies on the response of interstellar gas to a gravitational potential disc with a quasi-stationary spiral arm pattern suggest that the gas experiences a sudden compression due to standing shock waves at spiral arms.
Fumi Egusa, Erin Mentuch Cooper, Jin Koda, Junichi Baba   +3 more
semanticscholar   +5 more sources

The sequence of spiral arm classes: Observational signatures of persistent spiral density waves in grand-design galaxies [PDF]

Proceedings of the International Astronomical Union, 2019
We investigate how the properties of spiral arms relate to other fundamental galaxy properties. To this end, we use previously published measurements of those properties, and our own measurements of arm-interarm luminosity contrasts for a large sample of
A. Bittner, Dimitri A. Gadotti, Bruce G. Elmegreen, E. Athanassoula, D. M. Elmegreen, A. Bosma, J. C. Muñoz-Mateos   +6 more
semanticscholar   +8 more sources

High-resolution, 3D radiative transfer modeling : I. The grand-design spiral galaxy M51 [PDF]

Astronomy & Astrophysics, 2014
Context. Dust reprocesses about half of the stellar radiation in galaxies. The thermal re-emission by dust of absorbed energy is considered to be driven merely by young stars so is often applied to tracing the star formation rate in galaxies.
I. De Looze, J. Fritz, M. Baes, G. J. Bendo, L. Cortese, M. Boquien, Alessandro Boselli, Peter Camps, Asantha Cooray, D. Cormier, Jon Davies, Gert De Geyter, T. M. Hughes, A. P. Jones, O. Ł. Karczewski, V. Lebouteiller, N. Lu, S. C. Madden, A. Rémy-Ruyer, L. Spinoglio, Matthew W. Smith, S. Viaene, C. D. Wilson   +22 more
semanticscholar   +12 more sources

GIANT MOLECULAR CLOUDS AND STAR FORMATION 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 CO(1 → 0), CO(2
David Rebolledo, Tony Wong, Adam K. Leroy, Jin Koda, Jennifer L. Donovan   +4 more
semanticscholar   +8 more sources

A grand-design spiral galaxy with an ordered magnetic field at redshift 2.6 as resolved with ALMA and gravitational lensing [PDF]

Monthly Notices of the Royal Astronomical Society: Letters
Magnetic fields play an important role in the evolution of galaxies and in shaping the dynamics of their inter-stellar medium. However, the formation history of magnetic fields from initial seed-fields to well-ordered systems is not clear.
W. de Roo, S. Vegetti, Devon Powell, S W Ndiritu, Rüdiger Pakmor, J. P. McKean   +5 more
semanticscholar   +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, 2010
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 ...
Clare L. Dobbs, Ch. Theis, J. E. Pringle, Matthew R. Bate   +3 more
semanticscholar   +6 more sources

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

Astronomy & Astrophysics, 2011
Context. We carry out a detailed 2-D study of the ionised gas in the local universe galaxy UGC 9837. In nearby galaxies, like the galaxy in question here, the spatial distribution of the physical properties can be studied in detail, providing benchmarks ...
K. Viironen, S. F. Sánchez, E. Mármol-Queraltó, J. Iglésias-Páramo, D. Mast, R. A. Marino, D. Cristóbal-Hornillos, A. Gil de Paz, Glenn van de Ven, J. M. Vı́lchez, L. Wisotzki   +10 more
semanticscholar   +9 more sources

A panchromatic spatially resolved analysis of nearby galaxies – I. Sub-kpc-scale main sequence in grand-design spirals [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
We analyse the spatially resolved relation between stellar mass (M⋆) and star formation rate (SFR) in disc galaxies (i.e. the main sequence, MS). The studied sample includes eight nearby face-on grand-design spirals, e.g.
Andrea Enia, G. Rodighiero, L. Morselli, V. Casasola, S. Bianchi, L. Rodríguez-Muñoz, C. Mancini, A. Renzini, P. Popesso, P. Cassata, M. Negrello, A. Franceschini   +11 more
semanticscholar   +7 more sources