Limits on neutrino Lorentz violation from multimessenger observations of TXS 0506+056 by John Ellis, Nikolaos E. Mavromatos, Alexander S. Sakharov, Edward K. Sarkisyan-Grinbaum

“…Keywords: Lorentz violation, Multimessenger, Astrophysical neutrinos, Blazar, TXS 0506+056, IceCube…”
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THE FIRST CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE by Abdo, A, Ackermann, M, Ajello, M, Allafort, A, Antolini, E, Atwood, W, Axelsson, M, Baldini, L, Ballet, J, Barbiellini, G, Bastieri, D, Baughman, B, Bechtol, K, Bellazzini, R, Berenji, B, Blandford, R, Bloom, E, Bogart, JR, Bonamente, E, Borgland, A, Bouvier, A, Bregeon, J, Brez, A, Brigida, M, Bruel, P

“…We also classify the blazars based on their spectral energy distributions as archival radio, optical, and X-ray data permit. …”

Propagation of Cosmic Rays in Plasmoids of AGN Jets-Implications for Multimessenger Predictions by Julia Becker Tjus, Mario Hörbe, Ilja Jaroschewski, Patrick Reichherzer, Wolfgang Rhode, Marcel Schroller, Fabian Schüssler

“…The first hint of a possible neutrino signal from the blazar TXS 0506+056 leads to the anticipation that AGN could soon be identified as point sources of high-energy neutrino radiation, representing another messenger signature besides the established photon signature. …”
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Tau neutrinos in IceCube, KM3NeT and the Pierre Auger Observatory by Daan van Eijk

“…In 2018, the IceCube collaboration reported evidence for the identification of a blazar as an astrophysical neutrino source. That evidence is briefly summarised here before focusing on the prospects of tau neutrino physics in IceCube, both at high energies (astrophysical neutrinos) and at lower energies (atmospheric neutrino oscillations). …”
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Gamma-ray emission from early-type stars interacting with AGN jets by Araudo Anabella T., Bosch-Ramon Valentí, Romero Gustavo E.

“…This emission is expected to be relevant for nearby non-blazar sources.…”
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Study of High Energy Emission from Relativistic Jets with VERITAS by Mukherjee R.

“…In this report we present recent results from the VERITAS extragalactic program, focusing on blazars.…”
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AGILE γ-ray sources coincident with cosmic neutrino events by Lucarelli Fabrizio, Tavani Marco

“…One of the sources detected by AGILE is related to the blazar AGN TXS 0506+056. For the other sources, there are no obvious known counterparts.…”
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Recent results in γ-ray astronomy with the ARGO-YBJ detector by Di Girolamo Tristano

“…In this paper recent results in γ-ray astronomy will be presented, including those from 4.5 years of observations of the blazar Mrk 421 in common with the Fermi satellite.…”
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Neutrinos from near and far: Results from the IceCube Neutrino Observatory by Tianlu Yuan for the IceCube Collaboration

“…These include the observation of a flux of TeV-PeV astrophysical neutrinos, detection of the first astrophysical neutrino on the Glashow resonance and evidence of the blazar TXS 0506+056 as the first known astronomical source of high-energy neutrinos. …”
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Multimessenger constraints on intergalactic magnetic fields from the flare of TXS 0506+056 by Batista, RA, Saveliev, A

“…The recent observations of high-energy neutrinos from the blazar TXS 0506+056 in association with an electromagnetic counterpart in a broad range of wavelengths can be used to probe intergalactic magnetic fields via the time delay between the neutrinos and gamma-rays as well as the time dependence of the gamma-ray fluxes. …”

VERITAS highlights of observations and results by Sonal R. Patel for the VERITAS collaboration

“…We discuss the results from a decade of multi-wavelength observations of the blazar 1ES 1215+303, the EHT 2017 campaign on the M87 galaxy, the discovery of 3C 264 in VHE, and the observation of three flaring quasars. …”
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IceCube: An overview of physics results by Taboada Ignacio

“…And though TeVPeV astrophysical neutrinos have been observed, their sources and their relation to potential sources of cosmic rays remain unknown. Recently, the blazar TXS 0506+056 has been identified as a candidate neutrino source. …”
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Multiwavelength polarization observations of the γ-ray bright quasar PKS 0420-014 by Troitskiy I.S., Morozova D.A., Jorstad S.G., Marscher A.P., Larionov V.M., Blinov D.A., Agudo I., Smith P.S.

“…We interpret the multi-wavelength behavior within a model that places the blazar “dissipation zone” at the millimeter-wave core of the parsec-scale jet.…”
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Latest results on high-energy cosmic neutrino searches with the ANTARES neutrino telescope by Sánchez Losa Agustín

“…It has constrained the IceCube neutrino excess reports as well as, more recently, the flux from the source identified in the Blazar TXS 0506+056. The latest results of ANTARES on such analyses, including point-like and extended sources, diffuse fluxes, transient phenomena and multi-messenger studies, are presented.…”
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Multimessenger constraints on intergalactic magnetic fields from flaring objects by Saveliev, A, Alves Batista, R

“…The recent observations of high-energy neutrinos from the blazar TXS 0506+056 in association with an electromagnetic counterpart in a broad range of wavelengths can be used to probe intrinsic properties of this object and the traversed medium. …”

High-energy emission from jet-cloud interactions in AGNs by Araudo, A, Bosch-Ramon, V, Romero, G

“…The resulting radiation may be detectable for nearby non-blazar sources as well as for powerful quasars, and its detection could give important information on the broad line region and the jet itself.…”

Confirmation of X-ray Absorption by Warm-hot Intergalactic Medium in the Sculptor Wall by Fang, Taotao, Buote, David A., Humphrey, Philip J., Canizares, Claude R., Zappacosta, Luca, Maiolino, Roberto, Tagliferri, Gianpiero, Gastaldello, Fabio

“…In a previous paper, we reported a 3σ detection of an absorption line from the warm-hot intergalactic medium (WHIM) using the Chandra and XMM X-ray grating spectra of the blazar H2356-309, the sight line of which intercepts the Sculptor Wall, a large-scale superstructure of galaxies at z ~ 0.03. …”
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AMON Multimessenger Alerts: Past and Future by Hugo Alberto Ayala Solares

“…Given the new dawn of multimessenger astronomy recently realized with the detection of the neutron binary star merger and the possible γ + ν coincidence detection from the blazar TXS0506+056, in 2019, we are planning to commission several multimessenger alert streams, including GW + γ and high-energy γ + ν coincidence alerts. …”
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Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions by D’Ammando F., Orienti M., Finke J., Larsson J., Giroletti M.

“…Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies. …”
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Tracing Primordial Magnetic Fields with 21 cm Line Observations by Kerstin E. Kunze

“…Up until recently, the evidence always pointed to magnetic fields associated with some kind of structure, from planets to clusters of galaxies. Blazar observations have been used to posit the first evidence of truly cosmological magnetic fields or void magnetic fields. …”
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