Published January 20, 2003
| Published + Submitted
Journal Article
Open
Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies
Abstract
We use data from the BIMA Survey of Nearby Galaxies (SONG) to investigate the relationship between ellipticity and central mass concentration in barred spirals. Existing simulations predict that bar ellipticity decreases as inflowing mass driven by the bar accumulates in the central regions, ultimately destroying the bar. Using the ratio of the bulge mass to the mass within the bar radius as an estimate of the central mass concentration, we obtain dynamical mass estimates from SONG CO 1-0 rotation curve data. We find an inverse correlation between bar ellipticity and central mass concentration, consistent with simulations of bar dissolution.
Additional Information
© 2003. The American Astronomical Society. Received 2002 July 3; accepted 2002 August 28. M. D. thanks S. Jogee, E. Laurikainen, W. W. Zeilinger, and K. Sakamoto for useful discussions; we thank the SONG team for providing the entire data set used in this paper. This work is partially supported by NSF AST 99-81289. This research has made use of the NASA/ IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.Attached Files
Published - pdf
Submitted - 0208467.pdf
Files
0208467.pdf
Files
(240.4 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:da1a24aeaeffc4792f14e2d224c1d11d
|
134.0 kB | Preview Download |
|
md5:8a7d11b7f32e01766ea850a20612eba9
|
106.4 kB | Preview Download |
Additional details
- Eprint ID
- 75907
- Resolver ID
- CaltechAUTHORS:20170408-140210602
- AST 99-81289
- NSF
- NASA/JPL/Caltech
- Created
-
2017-04-19Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)