Spectropolarimetry of the nova-like variable V1315 Aql

Details Spectropolarimetry of the nova-like variable V1315 Aql Spectropolarimetry of the nova-like variable V1315 Aql

1995-06-21

arxiv.org/abs/astro-ph/9506111v1

Astronomy and Astrophysics

Astrophysics

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Scientific paper

We present spectropolarimetric observations of the eclipsing nova-like variable V1315 Aql, obtained with the aim of determining whether the single-peaked uneclipsed lines observed in this and related nova-likes are the result of disc emission scattered into the line of sight by the wind. The data show linear polarization with a mean value of 0.11+-0.02%. There are no significant differences between the continuum and line polarizations and no significant variations with wavelength or binary phase. We argue that the measured polarization may be attributed to scattering in the interstellar medium and hence conclude that there is no evidence of polarization intrinsic to V1315 Aql. We discuss alternative models which promise to resolve the controversy surrounding these objects.

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