Fakultät für Physik und Astronomie
STEPHEN PHILLIPS hostreviews.co.uk / UNSPLASH

The local rotation curve of the Milky Way

Oleksiy Golubov , Kharkiv University

We use a sample of SEGUE G-dwarfs to constrain the local behaviour of the rotation curve of the Milky Way. We find the mean galactocentric rotation velocity of the stars, correct for the asymmetric drift and the vertical gradient of the circular velocity, and construct the rotation curve at the galactocentric radii 7 to 10 kpc. The rotation curve appears flat, with no significant dips in the considered range. Then we use TGAS sample with Gaia parallaxes to constrain the local slope of the rotation curve.

SFB Seminar - The Milky Way System
26 Apr 2017, 15:15
ARI basement seminar room, video broadcast to MPIA, LSW, HITS

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