W1055+5443 is a Y-type brown dwarf, observations find
Keck/NIRES near-infrared spectrum for CWISE J105512.11+544328.3: original spectrum (gray) and 5-pixel smoothed spectrum (black). The spectrum is normalized to the J-band peak between 1.27 and 1.29 µm. Credit: arXiv (2023). DOI: 10.48550/arxiv.2310.09524 Using the Keck II telescope, astronomers have performed near-infrared spectroscopic observations of a nearby brown dwarf known as CWISE J105512.11+544328.3, or W1055+5443 for
Joan Fleishman
October 24, 2023