The structure of the Small Magellanic Cloud

Details The structure of the Small Magellanic Cloud The structure of the Small Magellanic Cloud

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...215..219m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 215, no. 2, May 1989, p. 219-242.

Astronomy and Astrophysics

Astrophysics

64

Early Stars, Galactic Structure, H Ii Regions, Magellanic Clouds, Absorption Spectra, H Lines, Interstellar Matter, Radial Velocity, Supergiant Stars

Scientific paper

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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