1998A&A...339..405F


Query : 1998A&A...339..405F

1998A&A...339..405F - Astronomy and Astrophysics, volume 339, 405-408 (1998/11-2)

The contribution of brown dwarfs to the local mass budget of the Galaxy.

FUCHS B., JAHREISS H. and FLYNN C.

Abstract (from CDS):

Based on the recent discoveries of free floating brown dwarfs we derive estimates of the local mass density of this population of objects. Mass density estimates from various surveys span the range 0.03 to 0.005M/pc3. These estimates are compared with the local mass densities of the other constituents of the galactic disk and, in particular, with the dynamically determined total local mass density. We argue that brown dwarfs might indeed contribute significantly to the local mass budget, but that a local mass density as high as 0.03M/pc as suggested by Ruiz et al. (1997ApJ...491L.107R) is rather unlikely.

Abstract Copyright:

Journal keyword(s): stars: low-mass, brown dwarfs - stars: kinematics - stars: statistics

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 LP 944-20 LM* 03 39 35.2523500210 -35 25 43.641996333     18.69 16.39 13.288 M9.5Ve 274 0
2 SIPS J1228-1547 BD* 12 28 15.23184 -15 47 34.2312       20.187 18.163 L5.5+L5.5 139 0
3 NAME Kelu-1 BD* 13 05 40.1642434199 -25 41 05.712165150         16.85 L2+L3.5 243 0
4 HD 114692 PM* 13 12 31.8958361350 -34 44 52.980145595   8.29 7.76     F5/6V 41 0
5 BD-22 3557 PM* 13 19 11.6431498714 -23 01 13.519995731   11.10 10.30     K0 34 0

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2022.05.22-21:27:30

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