Can I read GRB 171205A: Hypernova and Newborn Neutron Star on EtoBox?

GRB 171205A: Hypernova and Newborn Neutron Star by Wang, Yu; Becerra, L. M.; Fryer, C. L.; Rueda, J. A.; Ruffini, R. is a scholarly article available to read on EtoBox.

What is GRB 171205A: Hypernova and Newborn Neutron Star about?

GRB 171205A is a low-luminosity, long-duration gamma-ray burst (GRB) associated with SN 2017iuk, a broad-line type Ic supernova (SN). It is consistent with being formed in the core-collapse of a widely separated binary, which we have called the binary-driven hypernova (BdHN) of type III. The core-collapse of the CO star forms a newborn NS ($\nu$NS) and the SN explosion. Fallback accretion transfers mass and angular momentum to the $\nu$NS, here assumed to be born non-rotating. The accretion energy injected into the expanding stellar layers powers the prompt emission. The multiwavelength power-law afterglow is explained by the synchrotron radiation of electrons in the SN ejecta, powered by energy injected by the spinning $\nu$NS. We calculate the amount of mass and angular momentum gained by the $\nu$NS, as well as the $\nu$NS rotational evolution. The $\nu$NS spins up to a period of $47$ ms, then releases its rotational energy powering the synchrotron emission of the afterglow. The paucity of the $\nu$NS spin explains the low-luminosity characteristic and that the optical emission of the SN from the nickel radioactive decay outshines the optical emission from the synchrotron radiat

Author

Wang, Yu; Becerra, L. M.; Fryer, C. L.; Rueda, J. A.; Ruffini, R.

Published

2022

Language

EN