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UV and visible spectrophotometry of nine LMC Wolf-Rayet stars.

Willis, A. J.; Smith, L. J.

The first combined UV and visible spectrophotometric measurements of Large-Magellanic-Cloud Wolf-Rayet stars (6 of the WN subclass and 3 of the WC) are presented. The strengths of the He II 4686 A and 1640 A emission lines in the LMC WN stars are about twice as strong as those of their galactic counterparts. Expansion velocities and properties of …

The spectra of late type dwarfs and sub-dwarfs in the near ultraviolet II. Limits to variability in MgII emission from IUE spectrophotometry.

Molaro, P.; Franco, M. L.; Beckman, J. E. +2 more

The chromospheric h and k emission cores of the G dwarfs and subdwarfs Beta Hyi (14), Zeta Tuc (5), Delta Pav (5), and Tau Cet (5) have been monitored over a period of four years using the IUE satellite long wavelength camera. A detailed statistical examination of the data has shown that no variation in h and k fluxes of less than 15 percent could…