Negative detection of the four-hour periodicity of the central star of M1-2 (VV8)

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Eclipsing Binary Stars, Periodic Variations, Planetary Nebulae, Spectrum Analysis, Stellar Spectrophotometry, Absorption Spectra, Balmer Series, Emission Spectra, Hot Stars, Radial Velocity, Stellar Magnitude, Supergiant Stars

Scientific paper

The four-hour (4.0002-hr) binary periodicity of the emission-line object
M1-2 (= VV8), claimed by Drummond (1980), is examined on the basis of
photometric and spectroscopic observations. However, neither positive
variation of the light nor of the radial velocity associated with that
period has been found.

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