The 2MASS wide-field T dwarf search.: V. Discovery of a T dwarf via methane imaging

S. C. Ellis; C. G. Tinney; Adam J. Burgasser; J. Davy Kirkpatrick; Michael W. McElwain

doi:10.1086/491790

The 2MASS wide-field T dwarf search. V. Discovery of a T dwarf via methane imaging

S. C. Ellis^*, C. G. Tinney, Adam J. Burgasser, J. Davy Kirkpatrick, Michael W. McElwain

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

We present the discovery of a T dwarf, 2MASS 2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band due to methane found in the atmospheres of T dwarfs and provide a very efficient means of searching for them. Subsequent J- and H-band spectroscopy confirms 2MASS 2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18 ± 3 pc and an estimated tangential velocity of v _t = 50 ± 10 km s ^-1.

Original language	English
Pages (from-to)	2347-2351
Number of pages	5
Journal	Astronomical Journal
Volume	130
Issue number	5
DOIs	https://doi.org/10.1086/491790
Publication status	Published - 1 Nov 2005
Externally published	Yes

Keywords

Stars: individual (2MASS J21513839-4853542)
Stars: low-mass, brown dwarfs

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10.1086/491790

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title = "The 2MASS wide-field T dwarf search.: V. Discovery of a T dwarf via methane imaging",

abstract = "We present the discovery of a T dwarf, 2MASS 2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band due to methane found in the atmospheres of T dwarfs and provide a very efficient means of searching for them. Subsequent J- and H-band spectroscopy confirms 2MASS 2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18 ± 3 pc and an estimated tangential velocity of v t = 50 ± 10 km s -1.",

keywords = "Stars: individual (2MASS J21513839-4853542), Stars: low-mass, brown dwarfs",

author = "Ellis, \{S. C.\} and Tinney, \{C. G.\} and Burgasser, \{Adam J.\} and Kirkpatrick, \{J. Davy\} and McElwain, \{Michael W.\}",

year = "2005",

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doi = "10.1086/491790",

language = "English",

volume = "130",

pages = "2347--2351",

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T1 - The 2MASS wide-field T dwarf search.

T2 - V. Discovery of a T dwarf via methane imaging

AU - Ellis, S. C.

AU - Tinney, C. G.

AU - Burgasser, Adam J.

AU - Kirkpatrick, J. Davy

AU - McElwain, Michael W.

PY - 2005/11/1

Y1 - 2005/11/1

N2 - We present the discovery of a T dwarf, 2MASS 2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band due to methane found in the atmospheres of T dwarfs and provide a very efficient means of searching for them. Subsequent J- and H-band spectroscopy confirms 2MASS 2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18 ± 3 pc and an estimated tangential velocity of v t = 50 ± 10 km s -1.

AB - We present the discovery of a T dwarf, 2MASS 2151-4853, via differential imaging through methane filters. The filters are designed to highlight the strong absorption in the H band due to methane found in the atmospheres of T dwarfs and provide a very efficient means of searching for them. Subsequent J- and H-band spectroscopy confirms 2MASS 2151-4853 as a T dwarf of type T4.5. It has an estimated spectrophotometric distance of 18 ± 3 pc and an estimated tangential velocity of v t = 50 ± 10 km s -1.

KW - Stars: individual (2MASS J21513839-4853542)

KW - Stars: low-mass, brown dwarfs

UR - https://www.scopus.com/pages/publications/28944448267

U2 - 10.1086/491790

DO - 10.1086/491790

M3 - Article

AN - SCOPUS:28944448267

SN - 0004-6256

VL - 130

SP - 2347

EP - 2351

JO - Astronomical Journal

JF - Astronomical Journal

IS - 5

ER -

The 2MASS wide-field T dwarf search. V. Discovery of a T dwarf via methane imaging

Abstract

Keywords

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