Cornell University

This is a past event. Its details are archived for historical purposes.

The contact information may no longer be valid.

Please visit our current events listings to look for similar events by title, location, or venue.

Department of Physics Colloquium - Gold Lecture

Monday, April 22, 2019 at 4:00pm to 5:00pm

Rockefeller Hall, Schwartz Auditorium
Central Campus

General Physics Colloquium and Gold Lecture,  Professor Bruce Draine, Princeton University.

Refreshments from 3:30-3:50 pm

Title:  Anomalous Microwave Emission from the Interstellar Medium

Host:  Dong Lai

Abstract:  The "Anomalous Microwave Emission" (AME) is emission in the 20-60 GHz
range that is spatially correlated with interstellar dust. Discovered
in 1996 by the COBE DMR experiment, the AME is a "foreground" that
needs to be removed to study the CMB. The AME is also an
astrophysical puzzle: the emission process responsible for the AME
remains uncertain.

One hypothesis is that the AME is electric dipole radiation from
nanoparticles spinning at 20-60 GHz, although other hypotheses have
also been proposed, including thermal fluctuations in the
magnetization of ferromagnetic grain materials. The
existing evidence favors the "spinning dust" hypothesis.

Subscribe
Google Calendar iCal Outlook
Event Type

Colloquium

Departments

Astronomy, Physics

Tags

physics, astronomy, cascal, "

Website

https://physics.cornell.edu/upcoming-...

Contact E-Mail

sfc1@cornell.edu

Contact Name

Sue Sullivan

Contact Phone

607/255-7562

Speaker

Professor Bruce Draine

Speaker Affiliation

Princeton University

Dept. Web Site

https://physics.cornell.edu/

Recent Activity