Résumé / Abstract Seminaire_IAP
« First Results on the Structure of the Milky Way from the BeSSeL Survey »

Mark Reid
Harvard-Smithsonian Center Astroph. (CfA) (Cambridge, Massachusetts, Etats-Unis d'Amérique)

Using the VLBA, we are measuring distances to massive star forming regions by trigonometic parallax. We routinely achieve parallax accuracy of ~10 micro-arcseconds, which corresponds to 10% distance accuracy at 10 kpc! The first results from the Bar and Spiral Structure Legacy (BeSSeL) Survey will be presented. These measurements directly address the nature of the spiral structure, size, rotation speed, and mass of the Milky Way.
vendredi 19 avril 2013 - 11:00
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
Page web du séminaire / Seminar's webpage