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Characterization of the Very Low Mass Secondary in the GJ 660.1AB System
Christian Aganze, Adam J. Burgasser, Jacqueline K. Faherty +7
We present spectroscopic analysis of the low mass binary star system GJ 660.1AB, a pair of nearby M dwarfs for which we have obtained separated near-infrared spectra (0.9-2.5 m)…
Auroral radio emission from late L and T dwarfs: A new constraint on dynamo theory in the substellar regime
Melodie M. Kao, Gregg Hallinan, J. Sebastian Pineda +4
We have observed 6 late-L and T dwarfs with the Karl G. Jansky Very Large Array (VLA) to investigate the presence of highly circularly polarized radio emission, associated with lar…
High Resolution Imaging of Very Low Mass Spectral Binaries: Three Resolved Systems and Detection of Orbital Motion in an L/T Transition Binary
Daniella C. Bardalez Gagliuffi, Christopher R. Gelino, Adam J. Burgasser
We present high resolution Laser Guide Star Adaptive Optics imaging of 43 late-M, L and T dwarf systems with Keck/NIRC2. These include 17 spectral binary candidates, systems whose…
Kepler Monitoring of an L Dwarf II. Clouds with Multiyear Lifetimes
John E. Gizis, Kyle G. Dettman, Adam J. Burgasser +7
We present Kepler, Spitzer Space Telescope, Gemini-North, MMT, and Kitt Peak observations of the L1 dwarf WISEP J190648.47+401106.8. We find that the Kepler optical light curve is…
Properties of the Nearby Brown Dwarf WISEP J180026.60+013453.1
John E. Gizis, Adam J. Burgasser, Frederick J. Vrba
We present new spectroscopy and astrometry to characterize the nearby brown dwarf WISEP J180026.60+013453.1. The optical spectral type, L7.5, is in agreement with the previously re…
Radio Emission and Orbital Motion from the Close-Encounter Star-Brown Dwarf Binary WISE J072003.20-084651.2
Adam J. Burgasser, Carl Melis, Jacob Todd +3
We report the detection of radio emission and orbital motion from the nearby star-brown dwarf binary WISE J072003.20-084651.2AB. Radio observations across the 4.5-6.5 GHz band with…