▪ Abstract The Universe is in transition. At early times, galactic evolution was dominated by
hierarchical clustering and merging, processes that are violent and rapid. In the far future …

Disk galaxies evolve over time through processes that may rearrange both the radial mass
profile and the metallicity distribution within the disk. This review of such slow changes is …

We present the largest galaxies as seen in the near-infrared (1–2 μ m), imaged with the Two
Micron All Sky Survey (2MASS), ranging in angular size from 1 &arcmin; to 1 &fdg; 5. We …

Some 30% of disc galaxies have a pronounced central bar features in the disc plane and
many more have weaker features of a similar kind. Kinematic data indicate that the bar …

Abstract Using the PHANGS–ALMA CO (2–1) survey, we characterize molecular gas
properties on∼ 100 pc scales across 102,778 independent sightlines in 70 nearby galaxies …

About one fifth of all spiral disk galaxies include a ring-shaped pattern in the light
distribution, and an additional one third appear to have broken or partial rings made up of …

We have determined the fraction of barred galaxies in the H-band for a statistically well-
defined sample of 186 spirals drawn from the Ohio State University Bright Spiral Galaxy …

We present a scenario for the formation of disks that explains not only the properties of
normal galaxies but also the properties of the population of low surface brightness galaxies …

Gas-rich disks in the early universe are highly turbulent and have giant star-forming clumps.
Models suggest that the clumps form by gravitational instabilities, and if they resist disruption …

In this paper, we study the properties of pseudobulges (bulges that appear similar to disk
galaxies) and classical bulges (bulges which appear similar to E-type galaxies) in bulge …