MARVELS-1b: A Short-Period, Brown Dwarf Desert Candidate from the SDSS-III MARVELS Planet Search
Brian L. Lee, Jian Ge, Scott W. Fleming, Keivan G. Stassun, B. Scott, Gaudi, Rory Barnes, Suvrath Mahadevan, Jason D. Eastman, Jason Wright, Robert, J. Siverd, Bruce Gary, Luan Ghezzi, Chris Laws, John P. Wisniewski, G. F., Porto de Mello, Ricardo L. C. Ogando, Marcio A. G. Maia

TL;DR
This paper reports the discovery of a short-period brown dwarf candidate, MARVELS-1b, around a star, using radial velocity measurements from the SDSS-III MARVELS survey, with detailed orbital and mass characterization.
Contribution
First detection of a brown dwarf candidate from the MARVELS survey using dispersed fixed-delay interferometry with precise orbital parameters.
Findings
Orbital period of approximately 5.9 days.
Minimum mass of the companion is about 28 Jupiter masses.
No evidence of stellar variability or transits detected.
Abstract
We present a new short-period brown dwarf candidate around the star TYC 1240-00945-1. This candidate was discovered in the first year of the Multi-object APO Radial Velocity Exoplanets Large-area Survey (MARVELS), which is part of the third phase of the Sloan Digital Sky Survey (SDSS-III), and we designate the brown dwarf as MARVELS-1b. MARVELS uses the technique of dispersed fixed-delay interferometery to simultaneously obtain radial velocity measurements for 60 objects per field using a single, custom-built instrument that is fiber fed from the SDSS 2.5-m telescope. From our 20 radial velocity measurements spread over a ~370 d time baseline, we derive a Keplerian orbital fit with semi-amplitude K=2.533+/-0.025 km/s, period P=5.8953+/-0.0004 d, and eccentricity consistent with circular. Independent follow-up radial velocity data confirm the orbit. Adopting a mass of 1.37+/-0.11 M_Sun…
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