AT 2021lwx (also known as ZTF20abrbeie or "Scary Barbie") is the most energetic non-quasar optical transient astronomical event ever observed, with a peak luminosity of 7.0×1038 W and a total radiated energy of 9.7×1045–1.50×1046 J over three years. Despite being lauded as the largest explosion ever, GRB 221009A was both more energetic and brighter.
AT 2021lwx (also known as ZTF20abrbeie or "Scary Barbie") is the most energetic non-quasar optical transient astronomical event ever observed, with a peak luminosity of 7.0×1038 W and a total radiated energy of 9.7×1045–1.50×1046 J over three years. Despite being lauded as the largest explosion ever, GRB 221009A was both more energetic and brighter.
Source: Wikipedia "AT 2021lwx" · CC BY-SA 4.0
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