Bars and Boxy/Peanut-Shaped Bulges: An Observational Point of View

Details Bars and Boxy/Peanut-Shaped Bulges: An Observational Point of View Bars and Boxy/Peanut-Shaped Bulges: An Observational Point of View

1999-01-19

arxiv.org/abs/astro-ph/9901246v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures (LaTeX, cupconf.sty). To appear in the proceedings of the STScI workshop "When and How do Bulges Form and E

Scientific paper

Prompted by work on the buckling instability in barred spiral galaxies, much effort has been devoted lately to the study of boxy/peanut-shaped (B/PS) bulges. Here, we present new bar diagnostics for edge-on spiral galaxies based on periodic orbits calculations and hydrodynamical simulations. Both approaches provide reliable ways to identify bars and their orientations in edge-on systems. We also present the results of an observational search for bars in a large sample of edge-on spirals with and without B/PS bulges. We show that most B/PS bulges are due to the presence of a thick bar viewed edge-on while only a few may be due to accretion. This strongly supports the bar-buckling mechanism for the formation of B/PS bulges.

Affiliated with

Also associated with

No associations

Rating

Bars and Boxy/Peanut-Shaped Bulges: An Observational Point of View 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 and Boxy/Peanut-Shaped Bulges: An Observational Point of View, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bars and Boxy/Peanut-Shaped Bulges: An Observational Point of View will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-668529