Morphological structure and colors of NGC 1232 and NGC 1288

Citation
C. Mollenhoff et al., Morphological structure and colors of NGC 1232 and NGC 1288, ASTRON ASTR, 352(1), 1999, pp. L5-L10
Citations number
26
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
352
Issue
1
Year of publication
1999
Pages
L5 - L10
Database
ISI
SICI code
0004-6361(199912)352:1<L5:MSACON>2.0.ZU;2-9
Abstract
Using the FORS1 focal reducer camera at the VLT UT1 (Antu) a multi-color su rface photometry has been carried out for the southern Sc galaxies NGC 1232 and NGC 1288. Two-dimensional functions for the disk and the bulge were fi tted to the surface-brightness distribution, yielding a high-precision disk -bulge decomposition. Nearly linear correlations for the characteristic sca le parameters of disk and bulge in the different colors were found, as well as similar correlations for the central surface brightness of the disk and the effective surface brightness of the bulge. This seems to indicate that there exist connections between disk and bulge properties in spiral galaxi es and their stellar density and population distributions.