Grand Design versus Multiarmed Spiral Galaxies: Dependence on Galaxy Structure [PDF]
The Astronomical JournalWe 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 +3 more
doaj +4 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 12CO(1-0), 12CO(
David Rebolledo +4 more
core +8 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.
Junichi Baba
core +6 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 +3 more
core +10 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 +5 more
semanticscholar +8 more sources
PANORAMIC: Discovery of an ultra-massive grand-design spiral galaxy at z ∼ 5.2 [PDF]
Astronomy & AstrophysicsWe report the discovery of an ultra-massive grand-design red spiral galaxy, named Zhúlóng (Torch Dragon), at z_ phot in the JWST PANORAMIC survey; it is the most distant bulge+disk galaxy candidate with spiral arms known to date.
Mengyuan Xiao +28 more
semanticscholar +5 more sources
A direct test of density wave theory in a grand-design spiral galaxy [PDF]
Nature Astronomy, 2018 The exact nature of the arms of spiral galaxies is still an open question1. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the products of density waves that propagate around the disk, with the spiral arms ...
Thomas Peterken +7 more
semanticscholar +9 more sources
A grand-design spiral galaxy 1.5 billion years after the Big Bang with JWST [PDF]
Astronomy & AstrophysicsWe report the discovery of Alaknanda, a large ($\sim10$ kpc diameter), massive ($\log(M_\star/M_\odot)\sim10.2$), candidate grand-design spiral galaxy with photometric redshift $z_{phot}\sim4.05$ in the UNCOVER and Medium band, Mega Science surveys with ...
Rashi Jain, Yogesh Wadadekar
semanticscholar +7 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: LettersMagnetic 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 +5 more
semanticscholar +8 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]
The Astrophysical Journal, 2013 The Plateau de Bure Interferometer Arcsecond Whirlpool Survey has mapped the molecular gas in the central ∼9 kpc of M51 in its 12CO(1–0) line emission at a cloud-scale resolution of ∼40 pc using both IRAM telescopes.
Eva Schinnerer +12 more
semanticscholar +8 more sources