ar X iv : a st ro - p h / 03 05 16 3 v 1 9 M ay 2 00 3 Submitted to ApJ The Massive Triple Star System HD 16429 A
نویسنده
چکیده
HD 16429 A is a triple star system consisting of a single-lined spectroscopic binary and a widely separated third component, previously identified via speckle interferometry. Here I present the first orbital elements for the unblended spec-troscopic binary as well as estimates of the spectral types and relative flux contributions for each visible component based upon a Doppler tomographic reconstruction of their spectra. There are several stars around HD 16429 A, including the nearby Be X-ray binary and microquasar LS I +61 • 303, which all probably belong to a sub-cluster within the Cas OB6 association.
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