Extended Data Fig. 4: Spectrum of PSO J293.7711+21.8119 using LRIS at the Keck telescope.
From: An emission-state-switching radio transient with a 54-minute period
The data shows a featureless red continuum spectrum expected of L/T-dwarf stars.
Extended Data Fig. 4: Spectrum of PSO J293.7711+21.8119 using LRIS at the Keck telescope. | Nature Astronomy
