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Astron. Astrophys. 341, 81-85 (1999)

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Yes, the Sun is located near the corotation circle

Yu.N. Mishurov and I.A. Zenina

Space Research Department, Rostov State University, 5 Zorge, 344090, Rostov-on-Don, Russia (e-mail: mishurov@phys.rnd.runnet.ru)

Received 9 July 1997 / Accepted 22 April 1998


The total component velocity field of Cepheids was analysed in terms of a disk galaxy model perturbed by spiral density waves. The main result is: the Sun is situated very close to the corotation resonance where the rotation velocities of the disk and of the spiral pattern coincide. The displacement [FORMULA] of the Sun from the corotation circle is: [FORMULA] [FORMULA] kpc.

Key words: Galaxy: kinematics and dynamics – Galaxy: structure

© European Southern Observatory (ESO) 1999

Online publication: November 26, 1998