Probing the low-mass stellar end of the η Chamaeleontis cluster

Inseok Song; B. Zuckerman; M. S. Bessell

doi:10.1086/380086

Probing the low-mass stellar end of the η Chamaeleontis cluster

Inseok Song^*, B. Zuckerman, M. S. Bessell

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

We have identified three faint new members of the η 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 M _⊙. All three display strong Li 6708 Å absorption and Hα emission features, including one with an Ha emission equivalent width of ∼60 Å, along with He I 6678 and 7605 Å emission features that are characteristics of classical T Tauri stars.

Original language	English
Pages (from-to)	1016-1019
Number of pages	4
Journal	Astrophysical Journal
Volume	600
Issue number	2 I
DOIs	https://doi.org/10.1086/380086
Publication status	Published - 10 Jan 2004

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title = "Probing the low-mass stellar end of the η Chamaeleontis cluster",

abstract = "We have identified three faint new members of the η 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 M ⊙. All three display strong Li 6708 {\AA} absorption and Hα emission features, including one with an Ha emission equivalent width of ∼60 {\AA}, along with He I 6678 and 7605 {\AA} emission features that are characteristics of classical T Tauri stars.",

keywords = "Open clusters and associations: individual (η Chamaeleontis), Stars: activity, Stars: low-mass, brown dwarfs, Stars: pre-main-sequence",

author = "Inseok Song and B. Zuckerman and Bessell, {M. S.}",

year = "2004",

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doi = "10.1086/380086",

language = "English",

volume = "600",

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T1 - Probing the low-mass stellar end of the η Chamaeleontis cluster

AU - Song, Inseok

AU - Zuckerman, B.

AU - Bessell, M. S.

PY - 2004/1/10

Y1 - 2004/1/10

N2 - We have identified three faint new members of the η 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 M ⊙. All three display strong Li 6708 Å absorption and Hα emission features, including one with an Ha emission equivalent width of ∼60 Å, along with He I 6678 and 7605 Å emission features that are characteristics of classical T Tauri stars.

AB - We have identified three faint new members of the η 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 M ⊙. All three display strong Li 6708 Å absorption and Hα emission features, including one with an Ha emission equivalent width of ∼60 Å, along with He I 6678 and 7605 Å emission features that are characteristics of classical T Tauri stars.

KW - Open clusters and associations: individual (η Chamaeleontis)

KW - Stars: activity

KW - Stars: low-mass, brown dwarfs

KW - Stars: pre-main-sequence

UR - http://www.scopus.com/inward/record.url?scp=1642601964&partnerID=8YFLogxK

U2 - 10.1086/380086

DO - 10.1086/380086

M3 - Article

SN - 0004-637X

VL - 600

SP - 1016

EP - 1019

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 I

ER -

Probing the low-mass stellar end of the η Chamaeleontis cluster

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