The spectroscopic orbit and other parameters of AE Arae

Details The spectroscopic orbit and other parameters of AE Arae The spectroscopic orbit and other parameters of AE Arae

2002-10-22

arxiv.org/abs/astro-ph/0210490v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. To appear in 'Symbiotic stars probing stellar evolution', eds. R.M.L. Corradi, J. Mikolajewska, T. Mahoney

Scientific paper

We present an analysis of optical and near infrared spectra of the symbiotic system AE Ara, composed of an M5.5 III giant similar to the Galactic Bulge M giants and a hot luminous companion. In particular, we have determined for the first time spectroscopic orbits based of the radial velocity curves for the red and the hot component from the M-giant absorption lines and from the wings of He II 4686 emission profiles, respectively. We have also studied spectral changes and photometric variations in function of both the orbital phase and activity. The resulting physical parameters of the binary components and the nature of the hot component activity are briefly discussed.

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