论文标题

活跃银核中的风和托里的高能中微子和伽马射线

High-energy neutrinos and gamma rays from winds and tori in active galactic nuclei

论文作者

Inoue, Susumu, Cerruti, Matteo, Murase, Kohta, Liu, Ruo-Yu

论文摘要

在大多数活动的银河核(AGN)中观察到具有较宽的开口角的强风,可能是由黑洞周围(BHS)周围的增生盘驱动的,并且在AGN和Galaxy Evolution中起着至关重要的作用。如果通过扩散冲击加速器在BH附近的风中加速质子,则$ pp $和$pγ$工艺会产生中微子,以及从伽马射线到无线电频段的级联级联发射。 IceCube从遮盖的Seyfert Galaxy NGC 1068中检测到的TEV中微子可能是由于失败的,线驱动的风在物理上动机的失败的无碰撞冲击而引起的。尽管级联排放量为$γγ$在少数MEV上方的$γγ$,但它仍然可以对sub-gev伽玛射线和从NGC 1068中观察到的亚毫米发射产生重大贡献。在较高的能量下,伽马射线可以通过$ pp $的过程,从$ pp $过程中发生,而震惊的过程以及在不断进来的the ussistive and of ussistion gh的ghoss ghs comps and ghs compss gh的coss and ghss compsss and ghs coss的ghoss ghs complys ghs coss的ghoss comploss。讨论了该模型的测试和含义。中微子和伽马射线可能会提供独特的AGN风发射地点的探针,特别是对于其他形式的辐射中遮盖的物体。

Powerful winds with wide opening angles, likely driven by accretion disks around black holes (BHs), are observed in the majority of active galactic nuclei (AGN) and can play a crucial role in AGN and galaxy evolution. If protons are accelerated in the wind near the BH via diffusive shock acceleration, $pp$ and $pγ$ processes generate neutrinos as well as pair cascade emission from the gamma-ray to radio bands. The TeV neutrinos detected by IceCube from the obscured Seyfert galaxy NGC 1068 may arise from collisionless shocks in a failed, line-driven wind that is physically well motivated. Although the cascade emission is $γγ$-attenuated above a few MeV, it can still contribute significantly to the sub-GeV gamma rays and the sub-millimeter emission observed from NGC 1068. At higher energies, gamma rays can occur via $pp$ processes from a shock where an outgoing wind impacts the obscuring torus, along with some observable GHz-band emission. Tests and implications of this model are discussed. Neutrinos and gamma rays may offer unique probes of AGN wind launching sites, particularly for objects obscured in other forms of radiation.

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