Probing the Low Mass Stellar End of the eta Chamaeleontis Cluster

Details Probing the Low Mass Stellar End of the eta Chamaeleontis Cluster Probing the Low Mass Stellar End of the eta Chamaeleontis Cluster

2003-09-24

arxiv.org/abs/astro-ph/0309678v1

Astrophys.J.600:1016-1019,2004

Astronomy and Astrophysics

Astrophysics

11 pages, 4 figures, 2 tables, accepted in ApJ

Scientific paper

10.1086/380086

We have identified three faint new members of the eta Chamaeleontis cluster. Spectral types of the new members are estimated to be ~M5 based on their TiO band strengths and broadband colors. With an age of 5-8 Myr for the cluster, masses of these new members are estimated to be ~0.08 Msun. All three display strong Li 6708A absorption and Halpha emission features including one with Halpha emission equivalent width ~60A along with HeI 6678 & 7605 A emission features that are characteristics of classical T Tauri stars.

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