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Photometric Metallicity of the Sagittarius Stream in the south Galactic cap

  • Cuihua Du (a1), Jiayin Gu (a1), Yunpeng Jia (a2), Xiyan Peng (a2), Zhenyu Wu (a2), Jun Ma (a2), Xu Zhou (a2) and Yanchun Liang (a2)...

Abstract

Based on SDSS and South Galactic Cap U-band Sky Survey (SCUSS) photometry, we try to study the photometric metallicity of the Sagittarius (Sgr) stream in the south Galactic cap. We find that the Sgr stream has a wider metallicity distribution, and that its median metallicity is richer than that of the field halo stars. The neighboring field halo stars in our studied fields can be modeled by a two-Gaussian model, with peaks at [Fe/H]= −1.9 and [Fe/H]= −1.5. The metallicity distribution function (MDF) of the mixed population (Sgr stream and halo stars) has peaks at [Fe/H]= −1.9, [Fe/H]= −1.5 and [Fe/H]= −0.5, respectively.

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References

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Belokurov, V., et al., 2006, ApJ, 642, L137
Belokurov, V., et al., 2007, ApJ, 657, L89
Grillmair, C. J. 2006, ApJ, 651, L29
Grillmair, C. J. 2009, ApJ, 693, 1118
Gu, J. Y., et al., 2015, MNRAS, 452, 3092
Ivezić, Ž., et al., 2000, AJ, 120, 963
Jia, Y. P., et al., 2014, MNRAS, 441, 503
Newberg, H., et al., 2002, ApJ, 569, 245
Newberg, H., Yanny, B., Cole, N., Beers, T., Re Fiorentin, P., Schneider, D., & Wilhelm, R. 2007, ApJ, 668, 221
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Keywords

Photometric Metallicity of the Sagittarius Stream in the south Galactic cap

  • Cuihua Du (a1), Jiayin Gu (a1), Yunpeng Jia (a2), Xiyan Peng (a2), Zhenyu Wu (a2), Jun Ma (a2), Xu Zhou (a2) and Yanchun Liang (a2)...

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