Results 101 to 110 of about 1,112 (128)
Star formation in grand-design, spiral galaxies. Young, massive clusters in the near-infrared
, 2012 P. Grosbøl, H. Dottori
openalex
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 +11 more
semanticscholar +4 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 ...
T. Peterken +7 more
semanticscholar +9 more sources
Observational Manifestation of Chaos in Grand Design Spiral Galaxies
, 2003 To study dynamic properties of the gaseous disk of the grand design spiral galaxy NGC 3631 we calculate the Lyapunov characteristic numbers (LCN) for different families of streamlines in the disk. For the trajectories near separatrices of the giant vortices and near saddle points presenting in the velocity field, the LCN turned out to be positive.
A. M. Fridman +3 more
semanticscholar +4 more sources
Observational Manifestation of Chaos in the Gaseous Disk of the Grand Design Spiral Galaxy NGC 3631
, 2002 The main goal of the paper is to demonstrate the presence of chaotic trajectories in the gaseous disk of a real spiral galaxy. As an example we have chosen NGC 3631. First, we show the stationarity of the 3-D velocity field restored from the observed line-of-sight velocity field of the gaseous disk.
A. M. Fridman +2 more
semanticscholar +4 more sources