52 citations · 88 across the 3 of their papers we have counts for
5 papers
Stellar kinematics in double-barred galaxies: the sigma-hollows
A. de Lorenzo-Cáceres, J. Falcón-Barroso, A. Vazdekis +1
We present SAURON integral-field stellar velocity and velocity dispersion maps for four double-barred early-type galaxies: NGC2859, NGC3941, NGC4725 and NGC5850. The presence of th…
Boxy/Peanut bulges, vertical buckling and galactic bars
I. Martinez-Valpuesta, E. Athanassoula
Boxy/peanut bulges in disk galaxies have been associated to stellar bars. In this talk, we discuss the different properties of such bulges and their relation with the corresponding…
A Morphological and Statistical Analysis of Ansae in Barred Galaxies
I. Martinez-Valpuesta, J. H. Knapen, R. Buta
Many barred galaxies show a set of symmetric enhancements at the ends of the stellar bar, called {\it ansae}, or the ``handles'' of the bar. The ansa bars have been in the literatu…
Evolution of Stellar Bars in Live Axisymmetric Halos: Recurrent Buckling and Secular Growth
Inma Martinez-Valpuesta, Isaac Shlosman, Clayton Heller
Evolution of stellar bars in disk galaxies is accompanied by dynamical instabilities and secular changes. Following the vertical buckling instability, the bars are known to weaken…
Why Buckling Stellar Bars Weaken in Disk Galaxies
Inma Martinez-Valpuesta, Isaac Shlosman
Young stellar bars in disk galaxies experience a vertical buckling instability which terminates their growth and thickens them, resulting in a characteristic peanut/boxy shape when…