SIMBAD references

2010ApJ...718.1353I - Astrophys. J., 718, 1353-1366 (2010/August-1)

NLTT 41135: a field M dwarf + brown dwarf eclipsing binary in a triple system, discovered by the MEarth observatory.

IRWIN J., BUCHHAVE L., BERTA Z.K., CHARBONNEAU D., LATHAM D.W., BURKE C.J., ESQUERDO G.A., EVERETT M.E., HOLMAN M.J., NUTZMAN P., BERLIND P., CALKINS M.L., FALCO E.E., WINN J.N., JOHNSON J.A. and GAZAK J.Z.

Abstract (from CDS):

We report the discovery of an eclipsing companion to NLTT 41135, a nearby M5 dwarf that was already known to have a wider, slightly more massive common proper motion companion, NLTT 41136, at 2{farcs}4 separation. Analysis of combined-light and RV curves of the system indicates that NLTT 41135B is a (31-34)±3MJup brown dwarf (where the range depends on the unknown metallicity of the host star) on a circular orbit. The visual M dwarf pair appears to be physically bound, so the system forms a hierarchical triple, with masses approximately in the ratio 8:6:1. The eclipses are grazing, preventing an unambiguous measurement of the secondary radius, but follow-up observations of the secondary eclipse (e.g., with the James Webb Space Telescope) could permit measurements of the surface brightness ratio between the two objects, and thus place constraints on models of brown dwarfs.

Abstract Copyright: ∼

Journal keyword(s): binaries: eclipsing - brown dwarfs - stars: individual: NLTT 41135 - stars: low-mass

VizieR on-line data: <Available at CDS (J/ApJ/718/1353): table1.dat table2.dat>

Simbad objects: 8

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