Nova 55 and 67 days after eruption (IMAGE)
Caption
Images of Nova Cassiopeia 2021 (V1405 Cas) obtained with the CHARA Array between 55 and 67 days after the eruption began. The first two images reveal that, even after nearly 50 days, the nova had not yet expelled the bulk of its material. In contrast, the final image—taken two weeks later—shows the eventual large-scale ejection of material, which coincided with the onset of high-energy gamma-ray emission detected by NASA’s Fermi Gamma-ray Space Telescope.
Credit
NASA GSFC
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