Figure 12 from Global Properties of M31's Stellar Halo from the SPLASH Survey. II. Metallicity Profile

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Global Properties of M31's Stellar Halo from the SPLASH Survey. II. Metallicity Profile

Authors: Karoline M. Gilbert, Jason S. Kalirai, Puragra Guhathakurta, Rachael L. Beaton, Marla C. Geha, Evan N. Kirby, Steven R. Majewski, Richard J. Patterson, Erik J. Tollerud, James S. Bullock, Mikito Tanaka, and Masashi Chiba

Gilbert et al. 2014 The Astrophysical Journal 796 76.

Provider: AAS Journals

Caption: Figure 12.

Comparison of the median metallicity of the M31 halo fields, calculated with (left) and without (right) tidal debris features, with the metallicity profile of the stellar halos in the simulations of Font et al. (2011). The black curve shows the median spherically averaged metallicity as a function of radius for all 400 galaxies in the simulation, while the dark (light) gray shaded region encloses the 14th and 86th (5th and 95th) percentiles.

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