Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...182l...8a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 182, no. 1, Aug. 1987, p. L8-L10. NSF-supported research.
Astronomy and Astrophysics
Astrophysics
6
Halos, Magellanic Clouds, Star Distribution, Astronomical Photometry, Cosmos Satellites, Galaxies
Scientific paper
The authors have used the COSMOS automatic, high-speed, plate-scanning machine at the Royal Observatory, Edinburgh in order to obtain new and objective star counts down to faint limiting magnitudes (B ≡ 22.5, R ≡ 21.5) in the region of the Small Magellanic Cloud (SMC). The counts have been analysed using digital unsharp-masking techniques and reveal previously undetected features in the area to the North-East of the Cloud. These features appear to be concentric about the SMC, extending Southwards into the Wing, and may form part of a ring or shell-type structure in this region of the Cloud. The results reported herein invite a possible new interpretation of the "outer arm" of the SMC as part of a similar structure. These shell-like features also suggest an explanation for the shape of the main subcondensations in the Wing of the SMC.
Albers Henry
Beard Steven M.
Chromey Frederick R.
MacGillivray Harvey T.
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