SIMBAD references

2012MNRAS.424L..16L - Mon. Not. R. Astron. Soc., 424, L16-L20 (2012/July-3)

NGC 5466: a unique probe of the galactic halo shape.

LUX H., READ J.I., LAKE G. and JOHNSTON K.V.

Abstract (from CDS):

Stellar streams provide unique probes of galactic potentials, with the longer streams normally providing the cleaner measurements. In this Letter, we show an example of a short tidal stream that is particularly sensitive to the shape of the Milky Way's dark matter halo: the globular cluster tidal stream NGC 5466. This stream has an interesting deviation from a smooth orbit at its western edge. We show that such a deviation favours an underlying oblate or triaxial halo (irrespective of plausible variations in the Milky Way disc properties and the specific halo parametrization chosen); spherical or prolate halo shapes can be excluded at a high confidence level. Therefore, more extensive data sets along the NGC 5466 tidal stream promise strong constraints on the Milky Way halo shape. Detection of gravity modes in the massive binary V380 Cyg from Kepler space-based photometry and high-resolution spectroscopy

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): globular clusters: individual: NGC 5466 - Galaxy: halo - Galaxy: kinematics and dynamics - Galaxy: structure

Simbad objects: 7

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