The structure of the Small Magellanic Cloud. II

  • Mathewson D
  • Ford V
  • Visvanathan N
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Abstract

The structure of the SMC is investigated using previous H-I data, accurate radial velocities of 307 young stars and 35 H-II regions, and high-spectral-resolution profiles of interstellar absorption lines. It is found that 224 stars and 30 H-II regions of the main body of the SMC are associated with four H-I components, and that 54 of the objects are not associated with H I. Two main complexes of gas, stars, and H-II regions are found, one with a velocity of about -28 km/s and the other with a velocity of about +9 km/s. Most of the young stars are shown to lie within a depth smaller than 10 kpc, in agreement with recent Magellanic Cepheid data.

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Mathewson, D. S., Ford, V. L., & Visvanathan, N. (1988). The structure of the Small Magellanic Cloud. II. The Astrophysical Journal, 333, 617. https://doi.org/10.1086/166772

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