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A model atmosphere analysis of the binary 112 Herculis (1970)

Seligman, Courtney E. ; Aller, L. H.

Springer

Astrophysics and space science 9 (1970), S. 461-481

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ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Double-lined spectra have been obtained at 2 Å/mm for the Mn star 112 Herculis AB. The components are shown to be a B6.5V star and A2V star. Hydrogen-line-blanketed models are used to calculate atmospheric abundances. The best models appear to beT e=13500 K, logg=4.0, ξ T =2.5 km/sec for the primary; andT e=10000K, logg=4.2, ξ T =6 km/sec for the secondary. Both stars appear to have the same abundances. Helium, carbon, magnesium, aluminum, silicon, calcium, vanadium, and nickel appear to be considerably underabundant; phosphorus, scandium, titanium, manganese, iron, gallium, and mercury considerably overabundant; and chromium, strontium, and zirconium normal in abundance.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00649584

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