The onset of methane in l dwarfs

Keith S. Noll; T. R. Geballe; S. K. Leggett; Mark S. Marley

doi:10.1086/428572

The onset of methane in l dwarfs

Keith S. Noll, T. R. Geballe, S. K. Leggett, Mark S. Marley

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

Abstract

We have detected weak absorption features produced by the strong n3 methane band at 3.3 mm in two L dwarfs, 2MASSW J15074762162738 and 2MASSI J0825196±211552, classified as spectral types L5 and L7.5, respectively. These absorptions occur in objects warmer than any in which methane previously has been detected and mark the first appearance of methane in the ultracool star-to-brown dwarf spectral sequence.

Original language	English (US)
Pages (from-to)	L5-L8
Journal	Astrophysical Journal Letters
Volume	541
Issue number	2
DOIs	https://doi.org/10.1086/428572
State	Published - Oct 1 2000
Externally published	Yes

Keywords

Brown dwarfs
Infrared
Low-mass
Stars-radiative transfer-stars

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/428572

Cite this

@article{ff4cd8326c964175934bea2a28187658,

title = "The onset of methane in l dwarfs",

abstract = "We have detected weak absorption features produced by the strong n3 methane band at 3.3 mm in two L dwarfs, 2MASSW J15074762162738 and 2MASSI J0825196±211552, classified as spectral types L5 and L7.5, respectively. These absorptions occur in objects warmer than any in which methane previously has been detected and mark the first appearance of methane in the ultracool star-to-brown dwarf spectral sequence.",

keywords = "Brown dwarfs, Infrared, Low-mass, Stars-radiative transfer-stars",

author = "Noll, {Keith S.} and Geballe, {T. R.} and Leggett, {S. K.} and Marley, {Mark S.}",

year = "2000",

month = oct,

day = "1",

doi = "10.1086/428572",

language = "English (US)",

volume = "541",

pages = "L5--L8",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "2",

}

TY - JOUR

T1 - The onset of methane in l dwarfs

AU - Noll, Keith S.

AU - Geballe, T. R.

AU - Leggett, S. K.

AU - Marley, Mark S.

PY - 2000/10/1

Y1 - 2000/10/1

N2 - We have detected weak absorption features produced by the strong n3 methane band at 3.3 mm in two L dwarfs, 2MASSW J15074762162738 and 2MASSI J0825196±211552, classified as spectral types L5 and L7.5, respectively. These absorptions occur in objects warmer than any in which methane previously has been detected and mark the first appearance of methane in the ultracool star-to-brown dwarf spectral sequence.

AB - We have detected weak absorption features produced by the strong n3 methane band at 3.3 mm in two L dwarfs, 2MASSW J15074762162738 and 2MASSI J0825196±211552, classified as spectral types L5 and L7.5, respectively. These absorptions occur in objects warmer than any in which methane previously has been detected and mark the first appearance of methane in the ultracool star-to-brown dwarf spectral sequence.

KW - Brown dwarfs

KW - Infrared

KW - Low-mass

KW - Stars-radiative transfer-stars

UR - http://www.scopus.com/inward/record.url?scp=85033573557&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85033573557&partnerID=8YFLogxK

U2 - 10.1086/428572

DO - 10.1086/428572

M3 - Article

AN - SCOPUS:85033573557

SN - 2041-8205

VL - 541

SP - L5-L8

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

ER -

The onset of methane in l dwarfs

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this