Challenges in 2D Stellar Modeling

The Geometry of Karbandi in Persian Architecture; Response to the Challenges of Conventional and Stellar Karbandi

Karbandi is one of the original and ancient arched elements in Persian architecture which is formed based on a network with harmonic geometry and in addition to architectural function, it also has structural behavior. However, there are ambiguities about the geometry of this architectural element that should be addressed with targeted research. One of these ambiguities is to determine how the g...

2d Stellar Kinematics of Nuclear Bars

We just started an observational program to obtain 2D kinematics of nuclear bars, to be compared to N body simulations of single and double-barred galaxies. We have started a program to study the kinematics of double-barred galaxies using the Integral Field Spectrograph OASIS (CFHT). Stellar bidimensional velocity fields obtained with OASIS are compared with N body + SPH simulations, to constra...

Stellar Evolutionary Models: challenges from observations of stellar systems

We briefly review some constraints† for stellar models in various mass regimes and evolutionary stages as provided by observational data from spectroscopy to multi-wavelenghts photometry. The accuracy of present generation of stellar models can be significantly improved only through an extensive comparison between theory and observations.

Gas and stellar 2D kinematics in early-type galaxies

We have obtained integral field spectroscopy of a small sample of early-type galaxies to study the kinematical coupling between the stellar and gaseous components in their central regions.

Modeling Solar and Stellar Flares