- Unique Visitor: 35,764
2015 SS Seminar Series: "First Science with JouFLU: long-baseline optical interferometry and exo-zodiacal dust"N245, Conference Room 215October 22, 2015 - 3:30pm - 4:30pmPresenter: Nic Scott, Georgia State University, Astrophysics Branch (SSA) Visitor
N245, Conference Room 215November 16, 2015 - 1:30pm - 2:30pm
Using Protoplanetary Disks to Weigh the Youngest Stars and Constrain the Earliest Stages of Stellar Evolution
Abstract: Mass is the fundamental property that determines the fate of a star. In particular, the masses of young stars are of great relevance to many astrophysical problems, including star and planet formation. We have developed a novel approach that combines spatially resolved sub-millimeter spectral line imaging and optical/near-infrared high resolution spectroscopy to derive the fundamental properties of a young star: mass, temperature, and radius. By applying our technique to a sample of pre-main sequence stars, we are mapping out a dynamically-calibrated Hertzsprung-Russell diagram for the express purpose of evaluating pre-main sequence evolutionary models. Looking forward, ALMA is poised to deliver precise stellar masses in statistically large quantities, enabling a meaningful survey of the fundamental properties of young stars.
2015 SS Seminar Series: "Exploring the Venus Global Super-Rotation Using a Comprehensive Global Circulation Model"N245, Conference Room 215November 25, 2015 - 11:00am - 12:00pmPresented by: Joao Mendonca, University of Bern, Planetary Systems Branch (SST) Visitor
NASA Ames Conference CenterMarch 8, 2016 (All day)
More information to come...
This event is not opened to the public.