Results 111 to 120 of about 425,093 (175)

Origins and lifetimes of secular and tidal bars in simulated disc galaxies. [PDF]

open access: yesMon Not R Astron Soc
Frosst M   +3 more
europepmc   +1 more source

Evidence for the first globular cluster stellar stream beyond the Milky Way. [PDF]

open access: yesNature
Holm JK   +7 more
europepmc   +1 more source

Stellar orbital dynamics of disk galaxies: I bars, II spiral arms.

open access: yes, 2019
I. Bars We investigate regular and chaotic two-dimensional (2D) and three-dimensional (3D) orbits of stars in models of a galactic potential consisting of a disk, a halo, and a bar to find the origin of boxy components that are part of the bar or (almost)
Luis Leonardo Chaves Velasquez
core  

Modelling neutral hydrogen discs of spiral galaxies

open access: yes, 2002
We present an analytical model of a neutral hydrogen disc in a spiral galaxy. The gas disc of the spiral galaxy is assumed to have an exponential surface density profile and to be ionized by the cosmic ultraviolet background. To compare with observations,
Lin, WP   +3 more
core  

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

open access: yesNat Commun
Chen B   +7 more
europepmc   +1 more source

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