Cesium detected in the atmosphere of a hot white dwarf

Cesium detected in the atmosphere of a hot white dwarf

Best fit (red curves) to the Cs IV–Cs VI lines observed in the FUSE spectrum of HD 149499B (black curves). Credit: Chayer et al, 2022 By analyzing data from the Far Ultraviolet Spectroscopic Explorer (FUSE) telescope, an international team of astronomers has discovered cesium in the atmosphere of a hot white dwarf known as HD …

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