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We present the first results from our high-precision infrared (IR) astrometry program at the Canada-France-Hawaii Telescope. We measure parallaxes for 83 ultracool dwarfs (spectral types M6-T9) in 49Expand
Cluster Mass Functions in the Large and Small Magellanic Clouds: Fading and Size-of-Sample Effects
The properties of ~939 star clusters in the Large and Small Magellanic Clouds were determined from ground-based CCD images in UBVR passbands. The areal coverage was extensive, corresponding to 11.0Expand
The Extremely Red, Young L Dwarf PSO J318.5338-22.8603: A Free-floating Planetary-mass Analog to Directly Imaged Young Gas-giant Planets
We have discovered using Pan-STARRS1 an extremely red late-L dwarf, which has (J – K){sub MKO} = 2.78 and (J – K){sub 2MASS} = 2.84, making it the reddest known field dwarf and second only to 2MASSExpand
Planet Hunters IX. KIC 8462852-where's the flux?
TSB acknowledges support provided through NASA grant ADAP12-0172 and ADAP14-0245. MCW and GMK acknowledge the support of the European Union through ERC grant number 279973. The authors acknowledgeExpand
Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects
A large sample of precise distances based on homogeneous mid-infrared astrometry that robustly establishes absolute fluxes, luminosities, and temperatures is presented, showing the coolest brown dwarfs have temperatures of 400 to 450 kelvin and masses almost equal to 5 to 20 times that of Jupiter. Expand
The Rise of SN 2014J in the Nearby Galaxy M82
We report on the discovery of SN 2014J in the nearby galaxy M82. Given its proximity, it offers the best opportunity to date to study a thermonuclear supernova (SN) over a wide range of theExpand
Near-infrared Spectroscopy of the Extrasolar Planet HR 8799 b
We present 2.12-2.23 ?m high contrast integral field spectroscopy of the extrasolar planet HR?8799 b. Our observations were obtained with OSIRIS on the Keck II telescope and sample the 2.2 ?m CH4Expand
CFBDS J005910.90-011401.3: Reaching the T-Y Brown Dwarf transition?
the date of receipt and acceptance should be inserted later Abstract. We report the discovery of CFBDS J005910.90-011401.3 (hereafter CFBDS0059), the coolest brown dwarf iden- tified to date. WeExpand
The Impact of Stellar Multiplicity on Planetary Systems, I.: The Ruinous Influence of Close Binary Companions
The dynamical influence of binary companions is expected to profoundly influence planetary systems. However, the difficulty of identifying planets in binary systems has left the magnitude of thisExpand
On the Distribution of Orbital Eccentricities for Very Low-Mass Binaries
We have compiled a sample of 16 orbits for very low-mass stellar ( 0.6) binaries at orbital periods comparable to our sample suggests that tidal damping due to gas disks may play too large of a roleExpand