Very high energy neutrino expectation from Fanaroff-Riley I sources

被引：0

作者：

Marinelli, Antonio ^{[1
]}

Fraija, Nissim ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Fis, A Postal 70-264, Mexico City 04510, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico

来源：

EXTRAGALACTIC JETS FROM EVERY ANGLE | 2015年 / 10卷 / 313期

关键词：

galaxies: active; acceleration of particles; radiation mechanism: nonthermal; GAMMA-RAY EMISSION; CENTAURUS; SEARCH;

D O I：

10.1017/S1743921315002136

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Fanaroff-Riley I radiogalaxies have been observed in TeV gamma-rays during the last decades. The origin of the emission processes related with this energy band is still under debate. Here we consider the case of the two closest Fanaroff-Riley I objects: Centaurus A and M87. Their entire broadband spectral energy distributions and variability fluxes show evidences that leptonic models are not sufficient to explain their fluxes above 100 GeV. Indeed, both objects have been imaged by LAT instrument aboard of Fermi telescope with measured spectra well connected with one-zone leptonic models. However, to explain the TeV spectra obtained with campaigns by H.E.S.S., for Centaurus A, and by VERITAS, MAGIC and H.E.S.S. for M87, different emission processes must be introduced. In this work we introduce hadronic scenarios to describe the TeV gamma-ray fluxes observed and to obtain the expected neutrino counterparts for each considered TeV campaign. With the obtained neutrino spectra we calculate, through Monte Carlo simulations, the expected neutrino event rate in a hypothetical Km(3) neutrino telescope and we compare the results with what has been observed by IceCube experiment up to now.

引用

页码：169 / 174

页数：6

共 21 条

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