Technion - Israel Institute of Technology
I am an assistant professor (senior lecturer) in the Physics department at the Technion in Haifa, Israel.
I specialize in analytic and numerical modeling of physical processes in the interstellar medium (ISM). My goal is to obtain a deep understanding of how star formation operates in galaxies, and how the forming stars shape the ISM and regulate the evolution of galaxies across cosmic times.
Before joining the Technion, I was an ITC Postdoctoral Prize Fellow at Harvard (CfA) in Cambridge MA, USA, and a CTC Postdoctoral Prize Fellow at the University of Maryland (UMD) in College Park, MD, USA. I did my Ph.D. at Tel-Aviv University with Amiel Sternberg (see CV).
- The Interstellar-Medium
Our group combines multi-physics magneto-hydrodynamics simulations with analytic techniques to study the process of star-formation and galaxy evolution. We collaborate with observers to compare theory with observations in galaxies today and in high redshift galaxies forming in the Early Universe. An interesting aspect of our research is that it is inter-disciplinary, involving knowledge from different fields: chemistry, turbulence, hydrodynamics, atomic physics, and cosmology (see Research and Talks).
Interestingly, star formation and galaxy evolution are connected. Stars form in the ISM through the combined act of gas radiative-cooling followed by gravitational fragmentation and collapse. During their lives, the stars heat, ionize and disperse interstellar clouds. At their deaths massive stars inject energy and momentum by supernova explosions, heating and ionizing the gas, producing cosmic-rays, and generating turbulence. Altogether, these processes introduce a negative feedback-loop for star-formation. On the other hand, over cosmic time-scales, stars also facilitate gravitational collapse by gradually enriching the ISM with elements, which act as efficient gas coolants.