Spiral Galaxies with HST - Near Infrared Properties of Bulges
Abstract
Description
We have obtained HST_NICMOS images for 72 nearby spiral galaxy bulges in the H-band. These data show that galaxies with regular bulges have steeper nuclear cusps than galaxies with irregular bulges. We also show that galaxies with regular bulges fall on the same part of the (<γ>, magnitude)-diagram as elliptical galaxies. This implies that early-type spiral galaxy bulges have a formation process in common with ellipticals.
2 pages, 2 figures, in "Galaxy Dynamics: From the Early Universe to the Present", ASP Conf series, ed F. Combes, G. Mamon, V. Charmanadris
2 pages, 2 figures, in "Galaxy Dynamics: From the Early Universe to the Present", ASP Conf series, ed F. Combes, G. Mamon, V. Charmanadris