Time-resolved spectrophotometry of the AM Herculis system E2003 + 225

Details Time-resolved spectrophotometry of the AM Herculis system E2003 + 225 Time-resolved spectrophotometry of the AM Herculis system E2003 + 225

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311..873m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 15, 1986, p. 873-881.

Astronomy and Astrophysics

Astrophysics

13

Binary Stars, Magnetic Stars, Mass Transfer, Stellar Spectrophotometry, Temporal Resolution, Emission Spectra, Linear Polarization, Orbital Elements, Spectral Line Width, Stellar Luminosity

Scientific paper

The authors present the results of time-resolved moderate resolution spectrophotometry of the AM Her type system E2003+225 over one complete orbital period. The photometric light curves of the emission lines and the 4860 Å continuum are similar, each showing sharp minima near linear polarization phases 0.5 and 1.0. The similarity between the light curves of the lines and the continuum strongly argues that both arise in the same region. This source of emission is probably material undergoing collimated radial infall in the accretion column. This interpretation implies infall velocities on the order of 500 km s-1. The multiplicity of fast moving narrow emission-line components implies a complex geometry in the accretion stream.

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