none

NRAO/Socorro Colloquium Series

 Chat Hull

CfA

From protoplanetary disks to galaxy clusters: studying the role of magnetic fields in star formation across ~10 orders of magnitude

 



Abstract:  

Magnetic fields play a role in the star formation process across vastly differing spatial scales, from protoplanetary disks to protostellar cores to molecular clouds to galaxies and beyond.  I'll review my past work with CARMA on polarization in protostellar envelopes, and will discuss new work involving magnetized star-forming filaments; ALMA observations of protostars in Serpens; and VLA observations of the Perseus cluster, where, with the help of NRAO imaging and reduction gurus, we are on a quest to detect synchrotron emission from the famous H-alpha filaments surrounding NGC 1275.  I'll wrap up by discussing my role in the calibration of the ALMA polarization system, which is one of the main components of the ALMA EOC (Extension of Capabilities) effort.

February 13, 2015

11:00 am

Array Operations Center Auditorium

All NRAO employees are invited to attend via video, available in Charlottesville Auditorium, Green Bank Auditorium, and VLA Video Conference Room.

Local Host: Betsy Mills

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.