A Caltech Library Service

Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies

Das, Mousumi and Teuben, Peter J. and Vogel, Stuart N. and Regan, Michael W. and Sheth, Kartik and Harris, Andrew I. and Jefferys, William H. (2003) Central Mass Concentration and Bar Dissolution in Nearby Spiral Galaxies. Astrophysical Journal, 582 (1). pp. 190-195. ISSN 0004-637X. doi:10.1086/344480.

[img] PDF - Published Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Sheth, Kartik0000-0002-5496-4118
Harris, Andrew I.0000-0001-6159-9174
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.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
NSFAST 99-81289
Subject Keywords:galaxies: evolution; galaxies: ISM; galaxies: spiral; galaxies: structure
Issue or Number:1
Record Number:CaltechAUTHORS:20170408-140210602
Persistent URL:
Official Citation:Mousumi Das et al 2003 ApJ 582 190
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75907
Deposited By: 1Science Import
Deposited On:19 Apr 2017 17:46
Last Modified:15 Nov 2021 16:56

Repository Staff Only: item control page