Ultra high energy cosmic ray generation in black hole magnetosphere: testing by polarimetric observations

作者：Piotrovich M Y^*; Gnedin Y N; Buliga S D; Natsvlishvili T M

来源：Astrophysics and Space Science, 2014, 353(2): 625-631.

DOI：10.1007/s10509-014-2043-3

• Cosmic rays
• Supermassive black holes
• Active galactic nuclei
• Magnetic fields
• Polarization

We develop the method that allows to estimate ultra high energy cosmic ray (UHECR) production in active galactic nuclei (AGNs). We used the model developed by Neronov et al. (New J. Phys. 11:065015, 2009) and estimated the magnetic field strength near the innermost stable orbit in an accretion disk and at the horizon radius of a supermassive black hole (SMBH) using the data of polarimetric observations of broad lines emission. It allows to estimate the kinetic power of the relativistic jet at the base of Blandford-Znajek mechanism. In a result we estimated the cosmic ray power for a number of AGNs with known values of SMBH spins.

• 出版日期2014-10