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NGC 5907 revisited: a stellar halo formed by cannibalism?

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arxiv astro-ph/9804109 v1 pith:PYV6FTOC submitted 1998-04-10 astro-ph

J. Lequeux , F. Combes , M. Dantel-Fort , J.-C. Cuillandre , B. Fort , Y. Mellier This is my paper
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keywords halostellardiskcannibalismcomposedconfirmsconsistentdata
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We report on further observations of the luminous halo of NGC 5907. New V, I and B deep photometry confirms the existence of an extended stellar halo redder than the disk. Our data are consistent with a faint halo, or very thick disk, composed of a metal-rich old stellar population. We propose that it could be the remnant of a merged small elliptical, and we support our hypothesis with N-body simulations.

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