Buckling Bars and Boxy Bulges
| dc.creator | Merrifield, Michael R. | |
| dc.date | 1995-08-08 | |
| dc.date.accessioned | 2026-07-07T02:19:58Z | |
| dc.date.available | 2026-07-07T02:19:58Z | |
| dc.description | It has been suggested that the peanut-shaped bulges seen in some edge-on disk galaxies are produced when bars in these galaxies buckle. This paper reviews the modelling which seeks to show how bars buckle, and I present a very simple new model which captures the essential physics of this process. I then discuss the problems in establishing observationally the connection between peanut-shaped bulges and bars: confirmation of the link has proved difficult because boxy bulges are only apparent in edge-on galaxies whereas bars are only easily detectable in more face-on systems. Finally, I present a new technique which avoids this difficulty by searching for the distinctive kinematic signature of an edge-on bar; application of this method to spectra of peanut-shaped bulges reveals that they are, indeed, associated with hidden bars. | |
| dc.description | uuencoded compressed postcript, 9 pages. Invited talk at IAU Colloquium #157: Barred Galaxies. The figures (some of which are rather large) are available over the WWW from our preprint server at http://www.astro.soton.ac.uk/pubs/Publications.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9508033 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9508033 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/10078 | |
| dc.subject | Astrophysics | |
| dc.title | Buckling Bars and Boxy Bulges | |
| dc.type | text |