Radial-Velocity Monitoring of Members and Candidate Members of the TW Hydrae Association

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We present our spectroscopic measurements of the radial velocity, effective temperature, and projected rotational velocity of several of the known members of the TW Hya association, as well as measurements for candidate members selected on the basis of their X-ray or kinematic properties. A number of our targets turn out to be binaries, but most are non-members. The radial velocities for some of the other candidates support the conclusion that they are kinematically associated with the group, although further observations are required to show that they are indeed pre-main sequence objects.
5 pages, to appear in "Young Stars Near Earth: Progress and Prospects", ASP Conf. Ser

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http://salesiana.dossiersoluciones.com/handle/123456789/2749

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0105132
 http://arxiv.org/abs/astro-ph/0105132

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arXiv