Solving the Multimessenger Puzzle of the AGN-starburst Composite Galaxy NGC 1068

被引：44

作者：

Eichmann, Bjoern ^{[1
,2
,3
]}

Oikonomou, Foteini ^{[1
]}

Salvatore, Silvia ^{[2
,3
]}

Dettmar, Ralf-Juergen ^{[3
,4
]}

Tjus, Julia Becker ^{[2
,3
]}

机构：

[1] Norwegian Univ Sci & Technol NTNU, Inst Fysikk, Trondheim, Norway

[2] Ruhr Univ Bochum, Fak Phys & Astron, Theoret Phys 4, Bochum, Germany

[3] Ruhr Astroparticle & Plasma Phys Ctr RAPP Ctr, Bochum, Germany

[4] Ruhr Univ Bochum, Astron Inst, Fak Phys & Astron, Bochum, Germany

来源：

ASTROPHYSICAL JOURNAL | 2022年 / 939卷 / 01期

关键词：

DIFFUSIVE SHOCK ACCELERATION; SPECTRAL ENERGY-DISTRIBUTION; GAMMA-RAY; RADIO; EMISSION; NGC-1068; NUCLEUS; ORIGIN; ABSORPTION; NEUTRINOS;

D O I：

10.3847/1538-4357/ac9588

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Multiwavelength observations indicate that some starburst galaxies show a dominant nonthermal contribution from their central region. These active galactic nuclei (AGN)-starburst composites are of special interest, as both phenomena on their own are potential sources of highly energetic cosmic rays and associated gamma-ray and neutrino emission. In this work, a homogeneous, steady-state two-zone multimessenger model of the nonthermal emission from the AGN corona as well as the circumnuclear starburst region is developed and subsequently applied to the case of NGC 1068, which has recently shown some first indications of high-energy neutrino emission. Here, we show that the entire spectrum of multimessenger data-from radio to gamma-rays including the neutrino constraint-can be described very well if both, starburst and AGN corona, are taken into account. Using only a single emission region is not sufficient.

引用

页数：15

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