33 citations · 45 across the 5 of their papers we have counts for
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Xenon in Mercury-Manganese Stars
M. M. Dworetsky, J. L. Persaud, K. Patel
Previous studies of elemental abundances in Mercury-Manganese (HgMn) stars have occasionally reported the presence of lines of the ionized rare noble gas Xe II, especially in a few…
The Secondary Star of the HgMn Binary Phi Her
M. M. Dworetsky, Rosemary Willatt
The binary nature of the bright (V = 4.2 mag) Mercury-Manganese star Phi Her has been known since 1976 and it was considered a low-amplitude single-lined SB. In a recent study we f…
The helium abundances in HgMn and normal stars
M. M. Dworetsky
The parameter-free model of diffusion in the atmospheres of HgMn stars (Michaud 1986; Michaud et al 1979) predicts that helium should sink below the He II ionization zone in order…
Gallium abundances in mercury-manganese stars
M. M. Dworetsky, C. M. Jomaron, C. A. Smith
There is a widespread assertion in the literature that the optical Ga lines give much higher abundances than the UV lines. We have determined Ga abundances in HgMn stars taking the…
Mercury and platinum abundances in mercury-manganese stars
C. M. Jomaron, M. M. Dworetsky, D. A. Bohlender
We report new results for the elemental and isotopic abundances of the normally rare elements mercury and platinum in HgMn stars. Typical overabundances can be 4 dex or more. The i…