TANAMI - Multiwavelength and Multimessenger Observations of Active Galaxies

TL;DR

TANAMI is a comprehensive multiwavelength observational program studying active galactic nuclei jets, aiming to identify potential sources of ultrahigh-energy cosmic rays and PeV neutrinos through combined radio, IR, optical, X-ray, and gamma-ray data.

Contribution

This paper reviews recent results from TANAMI, demonstrating its role in multiwavelength monitoring and identifying AGN candidates as neutrino sources.

Findings

Identification of AGN candidate neutrino emitters within IceCube event error circles

Correlation between AGN jet activity and high-energy neutrino detections

Enhanced understanding of AGN jets as potential cosmic ray and neutrino sources

Abstract

Extragalactic jets launched from the immediate vicinity of supermassive black holes in radio-loud active galactic nuclei (AGN) are key objects in modern astronomy and astroparticle physics. AGN jets carry a fraction of the total gravitational energy released during the accretion of matter onto supermassive black holes and are prime suspects as possible sources of ultrahigh-energy cosmic rays and the recently detected extraterrestrial neutrinos at PeV energies. TANAMI (Tracking Active galactic Nuclei with Austral Milliarcsecond Interferometry) is a multiwavelength program monitoring AGN jets of the southern sky. It combines high-resolution imaging and spectral monitoring at radio wavelengths with higher-frequency observations at IR, optical/UV, X-ray and $\gamma$-ray energies. We review recent results of the TANAMI program, highlighting AGN candidate neutrino-emitters in the error circles of the IceCube PeV neutrino events.