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  • Star Formation Feedback and Radiation Hydrodynamics



    Seminar Title  

    Star Formation Feedback and Radiation Hydrodynamics

    Speaker:   Dr ZHANG Dong 


     (University of Virginia)
    When Tuesday morning, May 9, 10:30 a.m


    Room 212, Astronomy Building

                             Welcome to Attend   

      ( PMO Academic Committee & Academic Circulating committee)

       Abstract:  Galaxy formation and evolution are driven by many physical processes, among them feedback is one of the most difficult ingredients to be understood. It has been widely believed that star formation feedback plays a crucial role in regulating star formation, shaping the stellar mass function and mass-metallicity relation, driving turbulence in the interstellar medium, and launching galactic winds, which are ubiquitous in most rapidly star-forming galaxies. Although important, the physics of star formation feedback is still unclear. Feedback may be driven by overlapping supernovae explosions and radiation. However, the growing observations of multiphase structure in galactic winds and the interstellar medium in a large number of galaxies have not been well explained by any models. Using state-of-the-art numerical simulations especially radiation hydrodynamic simulations, I will assess the relative merits of various driving mechanisms for accelerating multiphase galactic winds to observed velocities, momentum flux boost during wind propagation, and interaction between winds and giant molecular clouds.


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