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Globular Cluster Streams as Galactic High-Precision Scales

Küpper, AHW, Balbinot, E, Bonaca, A, Johnston, KV, Hogg, DW, Kroupa, P and Santiago, BX (2015) Globular Cluster Streams as Galactic High-Precision Scales

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Tidal streams of globular clusters are ideal tracers of the Galactic gravitational potential. Compared to the few known, complex and diffuse dwarf-galaxy streams, they are kinematically cold, have thin morphologies and are abundant in the halo of the Milky Way. Their coldness and thinness in combination with potential epicyclic substructure in the vicinity of the stream progenitor turns them into high-precision scales. With the example of Palomar 5, we demonstrate how modeling of a globular cluster stream allows us to simultaneously measure the properties of the disrupting globular cluster, its orbital motion, and the gravitational potential of the Milky Way.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Küpper, AHW
Bonaca, A
Johnston, KV
Hogg, DW
Kroupa, P
Santiago, BX
Date : 30 September 2015
Uncontrolled Keywords : astro-ph.GA, astro-ph.GA, astro-ph.SR
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:45
Last Modified : 04 Dec 2019 16:13

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