2000ApJ...541L..75N

Query : 2000ApJ...541L..75N

2000ApJ...541L..75N - Astrophys. J., 541, L75-L78 (2000/October-1)

The onset of methane in L dwarfs.

NOLL K.S., GEBALLE T.R., LEGGETT S.K. and MARLEY M.S.

Abstract (from CDS):

We have detected weak absorption features produced by the strong ν3 methane band at 3.3 µm in two L dwarfs, 2MASSW J1507476-162738 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.

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Journal keyword(s): Infrared: Stars - Radiative Transfer - Stars: Low-Mass, Brown Dwarfs

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 DENIS J020529.0-115925 BD* 02 05 29.3651195393 -11 59 29.721210536           L7V 156 0
2 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 549 0
3 2MASSI J0825196+211552 BD* 08 25 19.6125672818 +21 15 51.549358145       21.97 19.22 L7.5V 138 0
4 HD 78366 PM* 09 08 51.0703818408 +33 52 55.986351384   6.53   5.6   G0IV-V 279 0
5 2MASSW J1506544+132106 BD* 15 06 54.3299045806 +13 21 06.039351151           L3 116 0
6 2MASSW J1507476-162738 BD* 15 07 47.6758255542 -16 27 40.113982846     22.136 18.928 16.579 L5V 216 0
7 * eta CrB C BD* 15 23 22.63488 +30 14 56.2092           L8V 118 1
8 HD 142640 SB* 15 56 14.4167237328 -14 23 57.868315584   6.793 6.324     F6V 71 0
9 HD 150012 PM* 16 37 48.0102377160 +13 41 13.317934056 6.750 6.740 6.320     F5IV-V 92 0

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