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Titolo:
The onset of methane in L dwarfs
Autore:
Noll, KS; Geballe, TR; Leggett, SK; Marley, MS;
Indirizzi:
Space Telescope Sci Inst, Baltimore, MD 21218 USA Space Telescope Sci Inst Baltimore MD USA 21218 , Baltimore, MD 21218 USA Gemini Observ, Hilo, HI 96720 USA Gemini Observ Hilo HI USA 96720Gemini Observ, Hilo, HI 96720 USA Joint Astron Ctr, Hilo, HI 96720 USA Joint Astron Ctr Hilo HI USA 96720Joint Astron Ctr, Hilo, HI 96720 USA New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA New Mexico State Univ Las Cruces NM USA 88003 n, Las Cruces, NM 88003 USA
Titolo Testata:
ASTROPHYSICAL JOURNAL
fascicolo: 2, volume: 541, anno: 2000,
parte:, 2
pagine: L75 - L78
SICI:
0004-637X(20001001)541:2<L75:TOOMIL>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
INFRARED SPECTRUM; GLIESE 229B; BROWN;
Keywords:
infrared : stars; radiative transfer; stars : low-mass, brown dwarfs;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Noll, KS Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218USA Space Telescope Sci Inst 3700 San Martin Dr Baltimore MD USA 21218
Citazione:
K.S. Noll et al., "The onset of methane in L dwarfs", ASTROPHYS J, 541(2), 2000, pp. L75-L78

Abstract

We have detected weak absorption features produced by the strong v(3) methane band at 3.3 mu m in two L dwarfs, 2MASSW J1507476-162738 and 2MASSI J0825196+211552, classified as spectral types L5 and L7.5, respectively. Theseabsorptions 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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/02/18 alle ore 12:41:21