Ansae in Barred Galaxies

Martinez-Valpuesta, I.; Knapen, J. H.; Buta, R.
Bibliographical reference

Pathways Through an Eclectic Universe ASP Conference Series, Vol. 390, proceedings of the conference held 23-27 April, 2007 at Santiago del Teide, Tenerife, Spain. Edited by J. H. Knapen, T. J. Mahoney, and A. Vazdekis San Francisco: Astronomical Society of the Pacific, 2008., p.304

Advertised on:
6
2008
Number of authors
3
IAC number of authors
0
Citations
2
Refereed citations
2
Description
Many barred galaxies show a set of symmetric enhancements at the ends of the stellar bar, called the ansae, or ``handles'', of the bar. In this poster, we make a quantitative analysis of the occurrence of ansae in barred galaxies, making use of The de Vaucouleurs Atlas of Galaxies by Buta and collaborators. We find that ˜40% of SB0s show ansae in their bars, thus confirming that ansae are common features in barred lenticulars. The ansae frequency decreases dramatically with later types, and hardly any ansae are found in galaxies of type Sb or later.