Phase-resolved IUE observations of AM Herculis system E1405-451

Details Phase-resolved IUE observations of AM Herculis system E1405-451 Phase-resolved IUE observations of AM Herculis system E1405-451

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..328t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 1, 1988, p. 328-334.

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Iue, Ultraviolet Spectra, X Ray Stars, Emission Spectra, Radial Velocity, Velocity Measurement

Scientific paper

The authors report the first phase-resolved IUE observations of the AM Herculis system E1405-451. The spectra show bright emission lines from N V, C IV, and He II, whose centroids vary drastically during the 101.5 minute period. The radial velocities measured from the line centroids show a sinusoidal variation with a semi-amplitude of 300 km s-1. They consider an explanation for the observed emission line velocities, using a model for the system having inclination i = 60° and magnetic colatitude Δ = 20°.

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