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The outer envelopes of globular clusters - I. NGC 7089 (M2)

Kuzma, Pete; Da Costa, Gary; Mackey, Dougal; Roderick, Tammy


We present the results of a wide-field imaging survey of the periphery of the Milky Way globular cluster NGC 7089 (M2). Data were obtained with MegaCam on the Magellan Clay Telescope and the Dark Energy Camera on the Blanco Telescope. We find that M2 is embedded in a diffuse stellar envelope extending to a radial distance of at least ∼60 arcmin (∼210 pc) – five times the nominal tidal radius of the cluster. The envelope appears nearly circular in shape, has a radial density decline well...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw1561
Access Rights: Open Access


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