A Brown Dwarf Sampler.This is a representative (not exhaustive) list as of 1999.

 
Name
Spectral Type
Mass(jup)
Age(Gyr)
Pedigreea
References
Notes

Single: Cluster b

 

 

 

 

 

 

Teide 1
M8
55-60
0.12
Lithium
Reb95, Reb96
Pleiades
PIZ-1
M9
45-55
0.12
C-Mb
Cos97
Pleiades
Roque 25
L0
35-40
0.12
C-M
Zap99b,Mar98a
Pleiades 
Ap 326
M7.5
60-70
0.08
Lithium
Sta99
Alpha Per
GY 11
M7
30-50
0.001-3
C-M
Wil99
r Oph
r Oph BD 1
M8.5
20-40
0.001-3
Lithium
Luh97,Mar99a
r Oph
Cha Ha 1
M7.5
20-40
0.001-3
C-M
Neu98(Xrays)
Chameleon
S Ori 47
L1
10-20
0.001-3
Lithium
Bej99,Zap99
Sigma Ori

Single: Field

 

 

 

 

 

 

Kelu-1
L2
<60
<1
Lithium
Ruiz97
Prop.motion survey
LP944-20
M9
<60
<1
Lithium
Tin98
Prop.motion survey
2MASSW J1553214+210907
L5.5
<60
<1.5
Lithium
Kir99a
Strong lithium
2MASSW J1632291+190441
L6
>60
<1.5
v. cool
Kir99a
(ref gives L8)
DENIS-P 

J0255-4700

L6
>60
<1.5
v. cool
Del99,Mar99c
coolest L

for now

SDSS 1624+00
T
<70
<4
Methane
Stra99
Sloan
2MASSW 

J1225543-273947

T
<70
<4
Methane
Bur99
10 pc
Binaries(Imaged)
Gl 229B
T
35-50
>1.5
Methane
Nak95,Opp98
~40AU

M2 c

G196-3B
L2
20-30
~0.1
Lithium
Reb98
~300AU

M3e c

DENIS-P

J1228-1447

L4.5
<60
<1
Lithium
Delf97,Mar99b
~5AU

2BDs

GD 165B
L4
>65
>1
cool enough?
Bec88,Kir99b
comp. to WD

No lithium?

LHS 102B 
L4
>65
>1
cool enough?
Gol99
comp. to M3,

no lithium

GG Tau Bb
M8
50-60
0.002
Lithium
Whi99
~200AU

4 T Tauri stars

Gl 570 D
T
40-60
>1
Methane
Bur99
~1500AU

K4+M1+M3 c

h CrB C
L8
35-55
<1
Lithium

Cool

Kir99c
~3600AU

G1 + G3c

Gl 417B
L4.5
20-25
<0.5
Lithium
Kir99c
~2000AU

G0 c

2MASS 1146
L3
<60
<1
Lithium
Koer99
~8AU

2BDs

Binaries 

(Radial Velocity)

PPl 15
M6.5
60,70
0.12
Lithium
Stauf95, Bas96
Pleiades

~0.03AU

HD114762
F9c
>11
>3
sin i?
Lath89
?planet??

~0.35AU

HD29587
G2c
20-60
>3
sin i?
Hal00
tested by

Hipparcos

HD127506
K3c
20-60
>3
sin i?
Hal00
tested by

Hipparcos

HD 168443 G8IV 17-40 >5 sin i OK Mar01 2.87 AU , 4.85 yr

a Only those with ?lithium? or ?methane? are certain; the others are likely

bFound by its position in a color-magnitude diagram

cspectral type of primary

Note: the references can be found in the ?Technical Bibligraphy?