Abstract
THE star τ Sco, HD149438, spectral type B0 V, was observed spectroscopically by the Princeton telescope-spectrometer on the Copernicus satellite during June and July 1973. This star is well known1 as being one of the few early type stars with a small projected rotational velocity, v-sini=20 km s−1, thus showing narrow spectral lines with a minimum of overlap or blending. So the spectrum of the star was scanned with a resolution of 0.05 Å over the entire wavelength range from 950 Å to 1,560 Å to obtain a prototype ultraviolet spectrum for an early-B star. This spectrum is in preparation by Rogerson and Upson.
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References
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ROGERSON, J., LAMERS, H. Discovery of a corona around an early-type star and the problem of mass loss. Nature 256, 190 (1975). https://doi.org/10.1038/256190a0
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DOI: https://doi.org/10.1038/256190a0
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