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astro-ph.SR2024
Discovery of the Binarity of Gliese 229B, and Constraints on the System's Properties
Samuel Whitebook, Timothy Brandt, Gregory Mirek Brandt +1
We present two epochs of radial velocities of the first imaged T dwarf Gliese 229B obtained with Keck/NIRSPEC. The two radial velocities are discrepant with one another, and with t…
astro-ph.SR2024
PHL 5038AB: Is the brown dwarf causing pollution of its white dwarf host star?
S. L. Casewell, J. Debes, T. J. Dupuy +9
We present new results on PHL 5038AB, a widely separated binary system composed of a white dwarf and a brown dwarf, refining the white and brown dwarf parameters and determining th…