Grand Design versus Multiarmed Spiral Galaxies: Dependence on Galaxy Structure
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
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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 ...
Charlotte Christensen +2 more
exaly +2 more sources
PANORAMIC: Discovery of an Ultra-Massive Grand-Design Spiral Galaxy at z ∼ 5.2 [PDF]
Astronomy and 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.
Rachel Bezanson +2 more
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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
Lia Athanassoula +2 more
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A Grand-Design Spiral Galaxy 1.5 Billion Years After the Big Bang With JWST [PDF]
Astronomy and 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 ...
Yogesh Wadadekar, Rashi Jain
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A New Statistical Analysis of the Morphology of Spiral Galaxies [PDF]
The Astronomical JournalMorphology is the starting point for understanding galaxies. Elmegreen et al. classified spiral galaxies into flocculent, multiple-arm, and grand-design galaxies based on the regularity of their spiral arm structure.
Junye Wei +6 more
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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
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A Cloud-Scale View of the Molecular Gas Disk in the Whirlpool Galaxy and Beyond [PDF]
EPJ Web of Conferences, 2022 The nearby galaxy M51 (also known as the Whirlpool galaxy) hosts an iconic grand-design spiral pattern and both IRAM facilities conducted the first cloud-scale (∼50 pc resolution) survey of the molecular gas reservoir across a the disk of a massive star ...
Schinnerer Eva +8 more
doaj +1 more source
Dust Emission in Galaxies at Millimeter Wavelengths: Cooling of star forming regions in NGC6946 [PDF]
EPJ Web of Conferences, 2022 Interstellar dust plays an important role in the formation of molecular gas and the heating and cooling of the interstellar medium. The spatial distribution of the mm-wavelength dust emission from galaxies is largely unexplored. The NIKA2 Guaranteed Time
Ejlali G. +56 more
doaj +1 more source
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 ...
T. Peterken +7 more
semanticscholar +2 more sources