Colloq Abstract - Burkhart

December 16

11am Mountain

 

Blakesley Burkhart

 

The Origins and Implications of Turbulence in Galaxies

Magnetic fields and turbulence are vital components of a variety of galactic physical processes,  including cosmic ray transport, interstellar medium (ISM) structure formation and star formation. However turbulence is difficult to measure observationally and therefore simulations  are vital for testing theories of ISM turbulence and gauging observational diagnostics via synthetic observations. In this talk I will discuss the origins of turbulence in galaxies via feedback and gravitational instability and how turbulence is connected to galaxy evolution in the context of the star formation rate, gas accretion onto galaxies, and galaxy gas fractions. I will also highlight how turbulence can be measured using new statistical diagnostic tools and how this opens up new avenues for understanding physical processes ranging from Milky-Way star formation to the non-thermal dynamics of the IGM/ICM.

 

Connect with NRAO

The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."

AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.