A peculiar faint satellite in the remote outer halo of M31
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Authors
Mackey, Alasdair
Huxor, A
Martin, N F
Ferguson, A. M. N.
Dotter, Aaron
McConnachie, Alan W
Ibata, Rodrigo A
Irwin, M. J.
Lewis, Geraint Francis
Sakari, C M
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Institute of Physics Publishing Ltd.
Abstract
We present Hubble Space Telescope imaging of a newly discovered faint stellar system, PAndAS-48, in the outskirts of the M31 halo. Our photometry reveals this object to be comprised of an ancient and very metal-poor stellar population with age ≳ 10 Gyr
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Astrophysical Journal Letters
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Open Access
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