We report the discovery of a candidate brown dwarf or a very low mass stellar companion ( MARVELS-5b ) to the star HIP 67526 from the Multi-object APO Radial Velocity Exoplanet Large-area Survey ( MARVELS ) .
The radial velocity curve for this object contains 31 epochs spread over 2.5 years .
Our Keplerian fit using a Markov Chain Monte Carlo approach , reveals that the companion has an orbital period of 90.2695 ^ { +0.0188 } _ { -0.0187 } days , an eccentricity of 0.4375 \pm 0.0040 and a semi-amplitude of 2948.14 ^ { +16.65 } _ { -16.55 } m s ^ { -1 } .
Using additional high-resolution spectroscopy , we find the host star has an effective temperature T _ { eff } = 6004 \pm 34 K , a surface gravity \log g [ cgs ] = 4.55 \pm 0.17 and a metallicity [ Fe/H ] = +0.04 \pm 0.06 .
The stellar mass and radius determined through the empirical relationship of Torres et al .
( 2010 ) , yields 1.10 \pm 0.09 M _ { \sun } and 0.92 \pm 0.19 R _ { \sun } .
The minimum mass of MARVELS-5b is 65.0 \pm 2.9 M _ { Jup } , indicating that it is likely to be either a brown dwarf or a very low mass star , thus occupying a relatively sparsely-populated region of the mass function of companions to solar-type stars .
The distance to this system is 101 \pm 10 pc from the astrometric measurements of Hipparcos .
No stellar tertiary is detected in the high-contrast images taken by either FastCam lucky imaging or Keck adaptive optics imaging , ruling out any star with mass greater than 0.2 M _ { \sun } at a separation larger than 40 AU .