Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-10-09
Astronomy and Astrophysics
Astrophysics
11 pages, 2 figures, Terschelling Conference, July 2005, to appear in Island Universes: Structure and Evolution of Disk Galaxi
Scientific paper
Simulations and observations of galactic bars suggest they do not commonly evolve into bulges, although it is possible that the earliest bars formed bulges long ago, when galaxies were smaller, denser, and had more gas. The most highly evolved of today's bars may become lenses over a Hubble time. Most galaxies in the early Universe are extremely clumpy, with 10^8-10^9 Msun blue clumps that resemble in color and magnitude the isolated field objects nearby. The presence of blue and irregular bars at high redshift suggests that some bars formed primarily in the gas phase accompanied by giant starbursts, rather than in pure stellar disks like most models. Secular and non-secular processes that cause galaxies to evolve are summarized.
No associations
LandOfFree
Bars, Spiral Structure, and Secular Evolution in Disk Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Bars, Spiral Structure, and Secular Evolution in Disk Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bars, Spiral Structure, and Secular Evolution in Disk Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-146599