A structured jet explains the extreme GRB 221009A

Brendan, O.; Troja, E.; Ryan, G.; Beniamini, P.; van Eerten, H.; Granot, J.; Dichiara, S.; Ricci, R.; Lipunov, V.; Gillanders, J.H.; Gill, R.; Moss, M.; Anand, S.; Andreoni, I.; Becerra, R.L.; Buckley David, A.H.; Butler, N.R.; Cenko, S.B.; Chasovnikov, A.; Durbak, J.; Francile, C.; Hammerstein, E.; van der Horst, A.J.; Kasliwal, M.M.; Kouveliotou, C.; Kutyrev, A.S.; Lee, W.H.; Srinivasaragavan, G.P.; Topolev, V.; Watson, A.M.; Yang, Y.; Zhirkov, K.

Авторы: Brendan O’Connor, Troja Eleonora, Ryan Geoffrey, Beniamini Paz, van Eerten Hendrik, Granot Jonathan, Dichiara Simone, Ricci Roberto, Lipunov Vladimir, Gillanders James H., Gill Ramandeep, Moss Michael, Anand Shreya, Andreoni Igor, Becerra Rosa L., Buckley David A.H., Butler Nathaniel R., Cenko Stephen B., Chasovnikov Aristarkh, Durbak Joseph, Francile Carlos, Hammerstein Erica, van der Horst Alexander J., Kasliwal Mansi M., Kouveliotou Chryssa, Kutyrev Alexander S., Lee William H., Srinivasaragavan Gokul P., Topolev Vladislav, Watson Alan M., Yang Yuhan, Zhirkov Kirill
Журнал: Science Advances
Том: 9
Номер: 23
Год издания: 2023
Номер статьи: 1405
DOI: 10.1126/sciadv.adi1405
Аннотация: https://www.science.org/doi/10.1126/sciadv.adi1405Long-duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the death of massive stars. Among them, GRB 221009A is by far the brightest burst ever observed. Because of its enormous energy (Eiso ≈ 1055 erg) and proximity (z ≈ 0.15), GRB 221009A is an exceptionally rare event that pushes the limits of our theories. We present multiwavelength observations covering the first 3 months of its afterglow evolution. The x-ray brightness decays as a power law with slope ≈t−1.66, which is not consistent with standard predictions for jetted emission. We attribute this behavior to a shallow energy profile of the relativistic jet. A similar trend is observed in other energetic GRBs, suggesting that the most extreme explosions may be powered by structured jets launched by a common central engine.
Добавил в систему: Липунов Владимир Михайлович

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A structured jet explains the extreme GRB 221009Aстатья

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