Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201..473r&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 201, Nov. 1982, p. 473-478. Research supported by the Consejo Nacional
Astronomy and Astrophysics
Astronomy
15
A Stars, Early Stars, Hydrogen Clouds, Interstellar Matter, Magellanic Clouds, Milky Way Galaxy, Stellar Magnitude
Scientific paper
Deep hypersensitized UKSTU objective-prism plates have been used in a search for faint blue spectra belonging to early-type stars in the direction of the Magellanic Stream. The two regions studied here are conincident with the small dense neutral-hydrogen condensations near the northern tip of the Stream studied by Mirabel et al. (1979). Unwidened spectra in these regions were visually inspected and classified and the results analysed, in the hope of detecting large numbers of early-type stars at faint magnitudes which might belong to the Magellanic Stream. From apparent magnitude and spectral type estimates, it is concluded that the number of early A-type stars found per square degree is almost a factor of 10 lower than what should be expected if the Stream originated out of a tidal stripping by gravitational interaction between one of the Magellanic Clouds and the Galaxy some two hundred million yrs ago. Furthermore, the absence of such a stellar component is discussed in terms of the assumed distance to the Magellanic Stream.
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