2001/05/16 by W. A. Lawson, Lawson, W. A.
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0105289
4 pages, to appear in Proc. "Young Stars Near Earth: Progress & Prospects", eds. R. Jayawardhana & T. Greene, T., ASP Conf. Series
arxiv created 2001/05/16 · openalex publication_date 2001/05/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The eta Chamaeleontis star cluster is one of the most important nearby groupings of pre-main sequence (PMS) stars. With accurately known distance, compact structure and highly-coeval intermediate-aged population, the eta Cha cluster is an important laboratory for enhancing our understanding of all PMS star evolutionary issues. In this paper, recent results concerning the stellar population are discussed including the discovery of a rare example of a ~10 Myr-old Classical T Tauri (CTT) star. This and other objects point to an X-ray-faint late-type population residing amongst the ROSAT-detected membership.