Photometric and spectroscopic observations of an optical candidate for the X-ray source H 0544 - 665

Astronomy and Astrophysics – Astronomy

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B Stars, Magellanic Clouds, Stellar Spectra, Ubv Spectra, Variable Stars, X Ray Sources, Balmer Series, Electrophotometry, Stellar Color, Stellar Magnitude

Scientific paper

We present the results of spectroscopic and UBV observations of the brightest star in the error box of the X-ray source H 0544-665. This object is a B0-1 V star and a member of the LMC. It shows correlated variations in brightness and colour indices. We suggest that it is a Be-type star observed during a stage of low emission strength. Although a relation between this star and the X-ray source has still to be proven the present data add considerable support to the proposed identification.

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