New Constraints on the Orbit of the Anticenter Stream

Details New Constraints on the Orbit of the Anticenter Stream New Constraints on the Orbit of the Anticenter Stream

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.1812g&link_type=abstract

American Astronomical Society, AAS Meeting #212, #18.12; Bulletin of the American Astronomical Society, Vol. 40, p.214

Astronomy and Astrophysics

Astronomy

Scientific paper

We combine radial velocity measurements along the Anticenter Stream with the stream's position and estimated distance to put strong constraints on its orbit. Using a standard, dark matter dominated model of the Galactic potential with a spherical halo, we find that the orbit is prograde, somewhat eccentric, and extends to 5 kpc above the Galactic disk at apolgalacticon. If the stream includes an extended leading arm, our best fitting model predicts that it should lie within 1 kpc of the Sun.

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