Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-07-16
Astronomy and Astrophysics
Astrophysics
Invited Review, 18 pages, ``BARS 2004'' Conference, South Africa, June 2004, eds.: K. C. Freeman, D. L. Block, I. Puerari, R.
Scientific paper
I will review the basic properties of S0 galaxies in the local Universe in relation to both elliptical and spiral galaxies, their neighbours on the Hubble sequence, and also in relation to dwarf spheroidal (dSph) galaxies. This will include colours, luminosities, spectral features, information about the age and metallicity composition of their stellar populations and globular clusters, about their ISM content, as well as kinematic signatures and their implications for central black hole masses and past interaction events, and the number ratios of S0s to other galaxy types in relation to environmental galaxy density. I will point out some caveats as to their morphological discrimination against other classes of galaxies, discuss the role of dust and the wavelength dependence of bulge/disk light ratios. These effects are of importance for investigations into the redshift evolution of S0 galaxies -- both as individual objects and as a population. The various formation and transformation scenarios for S0 and dSph galaxies will be presented and confronted with the available observations.
No associations
LandOfFree
On the Origin of S0 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 On the Origin of S0 Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Origin of S0 Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-635944