Morphology and metallicity of the Small Magellanic Cloud using RRab stars

Sukanta Deb,Harinder P Singh,Subhash Kumar,Shashi M Kanbur

Monthly Notices of the Royal Astronomical Society（2015）

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摘要

We present a study of three-dimensional structure of the Small Magellanic Cloud (SMC). The V- and I-band light curves of the fundamental mode RR Lyrae (RRab) stars obtained by the Optical Gravitational Lensing Experiment-III project were utilized in order to comprehend the SMC structure. The [Fe/H]–P–ϕ31 relation of Jurcsik & Kovacs is exploited to obtain the metallicities. From the three-dimensio...

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关键词

stars: fundamental parameters,stars: Population II,stars: variables: RR Lyrae,Magellanic Clouds,galaxies: statistics,galaxies: structure

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